List of Trechus species



This is a list of species in Trechus, a genus of beetles in the family Carabidae.

The genus Trechus contains the following species:

A

 * Trechus abakumovi Belousov & Kabak, 1996
 * Trechus abalkhasimi J.Schmidt & Faille, 2018
 * Trechus abdurakhmanovi Belousov, 1990
 * Trechus abeillei Pandellé, 1872
 * Trechus academiae Deuve, 1992
 * Trechus achillecasalei Deuve, 1998
 * Trechus acuticollis Sciaky & Pavesi, 1994
 * Trechus adaba J.Schmidt & Faille, 2018
 * Trechus additus J.Schmidt, 2016
 * Trechus aduncus Barr, 1962
 * Trechus adustus Jeannel, 1962
 * Trechus aedeagalis J.Schmidt, 2009
 * Trechus aethiopicus Alluaud, 1918
 * Trechus aghiazicus Belousov & Kabak, 2019
 * Trechus agni Deuve & Queinnec, 1985
 * Trechus agouzicus Deuve & Queinnec, 1992
 * Trechus akibensis Belousov, 1990
 * Trechus akkusianus Donabauer, 2006
 * Trechus aksuensis Belousov & Kabak, 1996
 * Trechus alajensis Belousov & Kabak, 1994
 * Trechus alanicus Belousov, 1990
 * Trechus albanicus Apfelbeck, 1905
 * Trechus algiricus Jeannel, 1922
 * Trechus alicantinus Español, 1971
 * Trechus alinae Dajoz, 1990
 * Trechus almonius Reitter, 1903
 * Trechus alpicola Sturm, 1825
 * Trechus alpigradus Reitter, 1888
 * Trechus alticola Wollaston, 1854
 * Trechus altitudinum Deuve, 2004
 * Trechus amasraensis Donabauer, 2004
 * Trechus ambarasensis Jeannel, 1954
 * Trechus amblus Jeannel, 1935
 * Trechus amblygonellus Jeannel, 1964
 * Trechus amblygonus Jeannel, 1935
 * Trechus ambrolauricus Belousov, 1989
 * Trechus amharicus Ortuño & Novoa, 2011
 * Trechus amicorum P.Moravec & Wrase, 1998
 * Trechus amplicollis Fairmaire, 1859
 * Trechus anae Morvan, 1982
 * Trechus andreinii Jeannel, 1921
 * Trechus angavoensis J.Schmidt & Faille, 2018
 * Trechus angelae Magrini, 1984
 * Trechus angelicae Reitter, 1892
 * Trechus angulifer Belousov & Kabak, 1992
 * Trechus angusticeps Apfelbeck, 1904
 * Trechus angusticollis Kiesenwetter, 1850
 * Trechus anichtchenkoi Toribio, 2012
 * Trechus animosus Jeannel, 1962
 * Trechus anjuensis Deuve, 1998
 * Trechus antonii Jeannel, 1936
 * Trechus antonini Deuve, 1998
 * Trechus apache Dajoz, 1990
 * Trechus apicalis Motschulsky, 1845
 * Trechus apoduvalipenis Salgado & Ortuño, 1998
 * Trechus apusenicus P.Moravec, 1986
 * Trechus aquilus Jeannel, 1962
 * Trechus arambourgi Jeannel, 1935
 * Trechus arizonae Casey, 1918
 * Trechus armenus Iablokoff-Khnzorian, 1963
 * Trechus arnoldii Belousov, 1987
 * Trechus arrecheai Ortuño; Gilgado & Cuesta, 2014
 * Trechus arribasi Jeanne, 1988
 * Trechus arshanicus Belousov & Kabak, 2001
 * Trechus artemisiae Putzeys, 1872
 * Trechus arthuri P.Moravec & Lompe in Löbl & Smetana, 2003
 * Trechus asiaticus Jeannel, 1927
 * Trechus assingi Lompe, 1999
 * Trechus astrophilus J.Schmidt, 2009
 * Trechus atomus P.Moravec & Wrase, 1998
 * Trechus aubei Pandellé, 1867
 * Trechus aubryi Coiffait, 1953
 * Trechus aurouxi (Mateu & Comas, 2006)
 * Trechus austriacus Dejean, 1831
 * Trechus avgolensis Belousov & Kabak, 1998
 * Trechus aztec Jeannel, 1920

B

 * Trechus babaensis Lompe, 2015
 * Trechus babaulti Jeannel, 1935
 * Trechus babinjensis Jeannel, 1927
 * Trechus badius Jeannel, 1960
 * Trechus badzhalicus Plutenko, 2004
 * Trechus bajankoli Belousov & Kabak, 1992
 * Trechus bakeri Jeannel, 1923
 * Trechus bakurovi Shilenkov, 1984
 * Trechus baleensis (Basilewsky, 1974)
 * Trechus balesilvestris J.Schmidt & Faille, 2018
 * Trechus balfourbrownei Ueno, 1965
 * Trechus balkaricus Belousov, 1990
 * Trechus balsamensis Barr, 1962
 * Trechus bannaticus Dejean, 1831
 * Trechus barahbisensis Deuve, 1988
 * Trechus barbaritae Donabauer, 2004
 * Trechus barberi (Jeannel, 1931)
 * Trechus barii Focarile, 1949
 * Trechus barnevillei Pandellé, 1867
 * Trechus barratxinai Español, 1971
 * Trechus basarukini P.Moravec & Wrase, 1997
 * Trechus basilewskianus Geginat, 2008
 * Trechus basilewskyi Jeannel, 1960
 * Trechus baskonicus Belousov & Kabak, 1996
 * Trechus bastianinii Magrini & Sciaky, 2006
 * Trechus bastropi J.Schmidt, 2009
 * Trechus batuensis Magrini & Sciaky, 2006
 * Trechus batyr Belousov & Kabak, 1992
 * Trechus bayanbulak Deuve, 1993
 * Trechus baztanensis Dupré, 1991
 * Trechus beatus Reitter, 1903
 * Trechus bedeli Jeannel, 1922
 * Trechus beesoni Jeannel, 1930
 * Trechus beghinorum Belousov & Kabak, 1992
 * Trechus beieri Winkler, 1936
 * Trechus belovi Belousov & Kabak, 1996
 * Trechus beltrani Toribio, 1990
 * Trechus benahoaritus Machado, 1989
 * Trechus benesi Deuve, 1993
 * Trechus bensai Jeannel, 1927
 * Trechus besucheti Pawlowski, 1977
 * Trechus besuchetianus Deuve, 1987
 * Trechus beusti (L.Schaufuss, 1863)
 * Trechus bhadarwahensis Deuve, 1982
 * Trechus bhutanicus Ueno, 1977
 * Trechus bianericus Belousov & Kabak, 2020
 * Trechus bibulus Lompe, 1999
 * Trechus biharicus Meixner, 1912
 * Trechus binotatus Putzeys, 1870
 * Trechus bipartitus Raffray, 1886
 * Trechus bodemeyeri Reitter, 1913
 * Trechus bogatshevi Belousov, 1987
 * Trechus bogdani Belousov & Kabak, 2000
 * Trechus bogdoensis Belousov & Kabak, 2001
 * Trechus boghinorum Belousov & Kabak, 1992
 * Trechus bohaci P.Moravec, 1987
 * Trechus bohemorum Pawlowski, 1973
 * Trechus boleslavi Belousov & Kabak, 2000
 * Trechus boludagensis Donabauer, 2006
 * Trechus bombi J.Schmidt & Faille, 2018
 * Trechus bonvouloiri Pandellé, 1867
 * Trechus bordei Peyerimhoff, 1909
 * Trechus bosnicus Ganglbauer, 1891
 * Trechus boudikae Morvan, 1982
 * Trechus bouilloni Faille; Bourdeau & Fresneda, 2012
 * Trechus boulbeni Deuve, 1998
 * Trechus bourdeaui Fresneda; Valenzuela & Faille, 2015
 * Trechus bowlingi Barr, 1962
 * Trechus bradycelliformis Csiki, 1906
 * Trechus brancuccii Deuve, 2006
 * Trechus brendelli Deuve, 2005
 * Trechus breuili Jeannel, 1913
 * Trechus breuningi Morvan, 1972
 * Trechus brevicaudis Belousov & Kabak, 1993
 * Trechus brevicorpus Belousov & Kabak, 1993
 * Trechus brezinai Deuve & Queinnec, 1992
 * Trechus bruckii Fairmaire, 1862
 * Trechus bruckoides Faille; Bourdeau & Fresneda, 2012
 * Trechus buahitensis Jeannel, 1954
 * Trechus budhaensis J.Schmidt, 2009
 * Trechus byzantinus Apfelbeck, 1901

C

 * Trechus cabrerai (Jeannel, 1936)
 * Trechus calashensis Deuve, 1982
 * Trechus caliginis Barr, 1985
 * Trechus cameroni Jeannel, 1923
 * Trechus cantalicus Fauvel, 1888
 * Trechus cappadocicus Pawlowski, 1976
 * Trechus caprai Jeannel, 1927
 * Trechus cardioderus Putzeys, 1870
 * Trechus carilloi Toribio & Rodriguez, 1997
 * Trechus carnioliae G.Müller, 1921
 * Trechus carolinae Schaeffer, 1901
 * Trechus carpaticus Rybinski, 1902
 * Trechus caspiricus Deuve, 1982
 * Trechus catensis Donabauer, 2013
 * Trechus cathaicus Sciaky & Pavesi, 1995
 * Trechus caucasicus Chaudoir, 1846
 * Trechus cautus Wollaston, 1854
 * Trechus cavernicola J.Frivaldszky, 1881
 * Trechus ceballosi Mateu, 1953
 * Trechus centralis Nonveiller; Pavicevic & Popovic, 1994
 * Trechus cephalonicus Winkler, 1914
 * Trechus cephalotellus Belousov in Kryzhanovskij et al., 1995
 * Trechus ceresai Binaghi, 1938
 * Trechus chalybeus Dejean, 1831
 * Trechus championi Jeannel, 1920
 * Trechus changbaicola Deuve, 2017
 * Trechus chappuisi Jeannel, 1935
 * Trechus cheoahensis Donabauer, 2005
 * Trechus chiguguanensis Belousov & Kabak, 2020
 * Trechus chillalicus Jeannel, 1936
 * Trechus chodjaii Morvan, 1974
 * Trechus chokensis Pawlowski, 2002
 * Trechus cholaensis Deuve, 1996
 * Trechus chormaensis Deuve, 1993
 * Trechus christinae J.Schmidt, 2016
 * Trechus cifrianae Ortuño & Jimenez-Valverde, 2011
 * Trechus clarkeianus (Basilewsky, 1974)
 * Trechus claudiae Deuve, 1996
 * Trechus clingmanensis Donabauer, 2005
 * Trechus coelestis Sciaky & Pavesi, 1994
 * Trechus colobus J.Schmidt & Faille, 2018
 * Trechus coloradensis Schaeffer, 1915
 * Trechus comasi Hernando, 2002
 * Trechus compactulus Belousov & Kabak, 1996
 * Trechus compsus Jeannel, 1935
 * Trechus concinnus Tschitscherine, 1904
 * Trechus concoloratus Lorenz, 1998
 * Trechus conformis Jeannel, 1927
 * Trechus confusatorius Deuve & Kaiser, 2009
 * Trechus consobrinus K. & J.Daniel, 1898
 * Trechus constrictus Schaum, 1860
 * Trechus controversus Binaghi, 1959
 * Trechus coweensis Barr, 1979
 * Trechus crassiscapus Lindroth, 1955
 * Trechus cratocephalus Belousov & Kabak, 2019
 * Trechus croaticus Dejean, 1831
 * Trechus croceus Fresneda; Valenzuela; Bourdeau & Faille, 2019
 * Trechus crucifer Piochard de la Brûlerie, 1876
 * Trechus cryobius Jeannel, 1935
 * Trechus cryptophilus Belousov & Kabak, 1992
 * Trechus culminicola Jeannel, 1936
 * Trechus cumberlandus Barr, 1962
 * Trechus cuniculorum Mequignon, 1921
 * Trechus curticollis Fairmaire, 1866
 * Trechus curvatilis Belousov & Kabak, 1998
 * Trechus cuspis Belousov & Kabak, 2020
 * Trechus custos Wollaston, 1854
 * Trechus cyclomus Jeannel, 1954
 * Trechus cyprinus Franz, 1987

D

 * Trechus dabanensis Sciaky & Pavesi, 1994
 * Trechus dabanshanicola Deuve, 2011
 * Trechus dacatraianus Deuve, 1996
 * Trechus dakushitaicus Deuve, 2004
 * Trechus damchungensis Deuve, 1998
 * Trechus danieli Holdhaus, 1902
 * Trechus daoensis Belousov & Kabak, 2001
 * Trechus davanensis Sciaky & Pavesi, 1994
 * Trechus davidiani Belousov, 1990
 * Trechus davidwrasei Donabauer, 2007
 * Trechus dayanae Assmann & Wrase, 2012
 * Trechus debilis Wollaston, 1871
 * Trechus decolor Jeannel, 1938
 * Trechus degienensis Jeannel, 1954
 * Trechus delarouzeei Pandellé, 1867
 * Trechus delhermi Saulcy, 1880
 * Trechus deliae Morvan, 1971
 * Trechus demircapicus P.Moravec, 1986
 * Trechus demissus Jeannel, 1962
 * Trechus densicornis (Fischhuber, 1977)
 * Trechus depressipenis Sciaky & Pavesi, 1995
 * Trechus depressipennis J.Schmidt & Faille, 2018
 * Trechus deqenensis Deuve, 2017
 * Trechus detersus Wollaston, 1864
 * Trechus dichrous Reitter, 1911
 * Trechus diecki Putzeys, 1870
 * Trechus dilizhanicus Belousov, 1989
 * Trechus dilutus Wollaston, 1854
 * Trechus dimorphicus Pawlowski, 2002
 * Trechus diogenes Pawlowski, 1979
 * Trechus dioscuricus Belousov, 1990
 * Trechus distigma Kiesenwetter, 1851
 * Trechus distinctus Fairmaire & Laboulbène, 1854
 * Trechus djebalicus (Comas & Mateu, 2008)
 * Trechus djebelgloubensis Quéinnec & Ollivier, 2013
 * Trechus doderoi Jeannel, 1927
 * Trechus dodola J.Schmidt & Faille, 2018
 * Trechus dolomitanus Jeannel, 1931
 * Trechus donabaueri Lebenbauer, 2004
 * Trechus dongola J.Schmidt, 2016
 * Trechus dongulaensis J.Schmidt, 2009
 * Trechus dostali Donabauer, 2007
 * Trechus dromai J.Schmidt, 2016
 * Trechus dubitans Reitter, 1903
 * Trechus dudkorum Belousov & Kabak, 1996
 * Trechus dulat Belousov & Kabak, 1992
 * Trechus dumitrescui Decou, 1959
 * Trechus duvalioides Deuve, 2004
 * Trechus dzermukensis Iablokoff-Khnzorian, 1963
 * Trechus dzhalair Belousov & Kabak, 1994
 * Trechus dzhungaricus Belousov & Kabak, 1992
 * Trechus dzykhvensis Belousov, 1990

E

 * Trechus echarouxi Ollivier & Queinnec, 2011
 * Trechus egorovi Belousov & Kabak, 1996
 * Trechus egregius Jeannel, 1927
 * Trechus elburzensis Morvan, 1974
 * Trechus elegans Putzeys, 1847
 * Trechus elgonicus Jeannel, 1930
 * Trechus elongatulus Putzeys, 1870
 * Trechus enedaphos Fresneda; Valenzuela; Bourdeau & Faille, 2019
 * Trechus enigmaticus Coiffait, 1971
 * Trechus enoploides Jeannel, 1954
 * Trechus enoplus Jeannel, 1935
 * Trechus epirotes Colas, 1957
 * Trechus eremita J.Schmidt, 2009
 * Trechus ericalis Magrini; Queinnec & Vigna Taglianti, 2013
 * Trechus erythrostomus Deuve, 1987
 * Trechus escalerae Abeille de Perrin, 1903
 * Trechus espanyoli (Mateu & Escola, 2006)
 * Trechus eutrechoides Deuve, 1992
 * Trechus exilipenis Belousov & Kabak, 1994

F

 * Trechus fadriquei (Mateu & Escola, 2006)
 * Trechus fairmairei Pandellé, 1867
 * Trechus felix Wollaston, 1864
 * Trechus ferghanicus Belousov & Kabak, 1992
 * Trechus fischtensis Reitter, 1888
 * Trechus fisehai J.Schmidt & Faille, 2018
 * Trechus flavocinctus Jeannel, 1922
 * Trechus flavocircumdatus Jeannel, 1922
 * Trechus flavolimbatus Wollaston, 1863
 * Trechus flavomarginatus Wollaston, 1854
 * Trechus focarilei Monguzzi, 1998
 * Trechus folwarcznyi Deuve, 1998
 * Trechus fongondi Deuve & Queinnec, 1983
 * Trechus fontinalis Rybinski, 1901
 * Trechus fortimanus Reitter, 1903
 * Trechus fortunatus Jeannel, 1927
 * Trechus franzianus Mateu & Deuve, 1979
 * Trechus franzschuberti Donabauer, 2006
 * Trechus frater J.Schmidt, 2016
 * Trechus frigophilus J.Schmidt, 2016
 * Trechus fritzbeneschi Donabauer, 2006
 * Trechus fubianensis Deuve, 2009
 * Trechus fulvatilis Belousov & Kabak, 1998
 * Trechus fulvus Dejean, 1831
 * Trechus fusculus Motschulsky, 1850

G

 * Trechus gagrensis Jeannel, 1927
 * Trechus galianus Belousov, 1989
 * Trechus galicicaensis B.V.Gueorguiev & Hristovski, 2010
 * Trechus gallaecus Jeannel, 1921
 * Trechus gallorites Jeannel, 1936
 * Trechus gamae Reboleira & Serrano, 2009
 * Trechus gansuensis Deuve & Queinnec, 1993
 * Trechus gemaensis Belousov & Kabak, 2020
 * Trechus genevanorum Pawlowski, 1977
 * Trechus gigas Pawlowski, 2002
 * Trechus gigoni (Casale, 1982)
 * Trechus gitzeni Belousov & Kabak, 2001
 * Trechus glabratus J.Schmidt, 2009
 * Trechus glacialis Heer, 1837
 * Trechus glebi Belousov & Kabak, 2019
 * Trechus gloriensis Jeanne, 1971
 * Trechus goebli Breit, 1914
 * Trechus goelkoeyensis Donabauer, 2013
 * Trechus goidanichi Focarile & Casale, 1978
 * Trechus goliath Belousov & Kabak, 1992
 * Trechus golovatchi Casale, 1983
 * Trechus gomerensis Franz, 1986
 * Trechus gongshanensis Deuve & Kavanaugh, 2016
 * Trechus gorkhai J.Schmidt, 1998
 * Trechus gracilitarsis K. & J.Daniel, 1898
 * Trechus gradloni Morvan, 1982
 * Trechus grandiceps Reitter, 1885
 * Trechus grandipennis J.Schmidt & Faille, 2018
 * Trechus grandis Ganglbauer, 1891
 * Trechus gravidus Putzeys, 1870
 * Trechus grenieri Pandellé, 1867
 * Trechus groubei (Antoine, 1936)
 * Trechus guangaishanus Belousov & Kabak, 2001
 * Trechus gugheensis Jeannel, 1950
 * Trechus gulickai Löbl, 1967
 * Trechus gurungi J.Schmidt, 1998
 * Trechus gusevi Belousov, 1990
 * Trechus gushensis Belousov & Kabak, 1998
 * Trechus gwiomarchi Morvan, 1982
 * Trechus gyalmo J.Schmidt, 2016
 * Trechus gyalpo J.Schmidt, 2016
 * Trechus gyatsola J.Schmidt, 2016
 * Trechus gypaeti Vigna Taglianti & Magrini, 2009

H

 * Trechus habaicus Deuve, 2011
 * Trechus habashanensis Deuve, 2017
 * Trechus hagenia J.Schmidt & Faille, 2018
 * Trechus haggei J.Schmidt & Faille, 2018
 * Trechus hajeki Reitter, 1913
 * Trechus hampei Ganglbauer, 1891
 * Trechus hangaicus Shilenkov, 1982
 * Trechus haoe Barr, 1979
 * Trechus haoeleadensis Donabauer, 2005
 * Trechus harenna J.Schmidt & Faille, 2018
 * Trechus harryi J.Schmidt & Faille, 2018
 * Trechus hauseri Jeannel, 1962
 * Trechus heinzianus Pawlowski, 1979
 * Trechus hemsinensis Donabauer, 2013
 * Trechus hendrichsi Mateu, 1974
 * Trechus heniochicus Ljovuschkin, 1970
 * Trechus hiekei J.Schmidt, 2016
 * Trechus himalensis Deuve & Queinnec, 1985
 * Trechus hingstoni Jeannel, 1928
 * Trechus hodeberti Deuve, 1998
 * Trechus holzun Shilenkov & Sokolov, 1987
 * Trechus hoppi Jeannel, 1927
 * Trechus houzhenziensis Deuve, 2001
 * Trechus howellae Barr, 1979
 * Trechus humboldti Van Dyke, 1945
 * Trechus hummleri Jeannel, 1927
 * Trechus hurrita Pavesi & Sciaky, 1990
 * Trechus huzhubeiensis Deuve, 2011
 * Trechus hydropicus G.Horn, 1883
 * Trechus hylonomellus Lorenz, 1998
 * Trechus hyperythros Fresneda; Valenzuela; Bourdeau & Faille, 2019

I

 * Trechus iblanensis (Mateu & Escola, 2006)
 * Trechus idriss Peyerimhoff, 1924
 * Trechus ilgazensis Donabauer, 2004
 * Trechus ilgazicus Pawlowski, 1976
 * Trechus illyricus Jeannel, 1921
 * Trechus imaicus Jeannel, 1923
 * Trechus imereticus Belousov, 1990
 * Trechus impunctus Casale, 1979
 * Trechus imurai Ueno, 1999
 * Trechus incisipenis Belousov & Kabak, 1999
 * Trechus incola Peyerimhoff, 1909
 * Trechus indicus Putzeys, 1870
 * Trechus indicusoides Deuve, 2005
 * Trechus inexpectatus Barr, 1985
 * Trechus inexspectatus Belousov & Kabak, 2001
 * Trechus infuscatus Chaudoir, 1850
 * Trechus insolitus K.Daniel in K. & J.Daniel, 1906
 * Trechus insubricus K. & J.Daniel, 1898
 * Trechus iranicus Morvan & Pawlowski, 1977
 * Trechus irenis Csiki, 1912
 * Trechus iricolor Sciaky & Pavesi, 1995
 * Trechus iridescens J.Schmidt & Faille, 2018
 * Trechus irkeshtamicus Belousov & Kabak, 1998
 * Trechus irritus Jeannel, 1960
 * Trechus isabelae Borges & Serrano, 2007 (Cave ground-beetle)
 * Trechus isfanensis Belousov & Kabak, 1998
 * Trechus ispulensis Belousov & Kabak, 1992
 * Trechus italicus K. & J.Daniel, 1898
 * Trechus ithae Reitter, 1888

J

 * Trechus jadodraconis Deuve, 1995
 * Trechus jaechi Donabauer, 2006
 * Trechus janaki P.Moravec, 1993
 * Trechus janatai Belousov & Kabak, 2000
 * Trechus jarrigei Morvan, 1972
 * Trechus jeannei Sciaky, 1998
 * Trechus jezerensis Apfelbeck, 1908
 * Trechus jiuhensis Deuve & Liang, 2015
 * Trechus jiuzhaiensis Deuve, 1998
 * Trechus jorgensis Oromi & Borges, 1991 (Cave ground-beetle)
 * Trechus jugivagus Lutshnik, 1930

K

 * Trechus kabakovi Pawlowski, 1978
 * Trechus kabylicus Casale, 1983
 * Trechus kackardagi Pawlowski, 1978
 * Trechus kaikanicus Belousov & Kabak, 1994
 * Trechus kalabi Deuve & Queinnec, 1993
 * Trechus kalabianus Deuve, 1993
 * Trechus kangchenjunga J.Schmidt, 2016
 * Trechus kantegiricus Belousov & Kabak, 1994
 * Trechus karadenizus Pawlowski, 1976
 * Trechus karasibensis Belousov & Kabak, 1994
 * Trechus karlykensis Belousov & Kabak, 2001
 * Trechus kashensis Belousov & Kabak, 2001
 * Trechus kashgarensis Deuve, 1992
 * Trechus kataevi Belousov, 1987
 * Trechus katranicus Belousov & Kabak, 1996
 * Trechus kaznakovi Jeannel, 1935
 * Trechus keithi Ollivier; Pavicevic & Queinnec, 2008
 * Trechus ketmenicus Belousov & Kabak, 1993
 * Trechus kezadonicus Belousov, 1989
 * Trechus khalabicus Belousov, 1990
 * Trechus khaledicus Belousov, 1990
 * Trechus khnzoriani Pawlowski, 1976
 * Trechus khorgosicus Belousov & Kabak, 1994
 * Trechus kiapazicus Belousov, 1990
 * Trechus kimak Belousov & Kabak, 1996
 * Trechus kobingeri Apfelbeck, 1902
 * Trechus kocheri Paulian & Villiers, 1939
 * Trechus kodoricus Belousov, 1989
 * Trechus kokzhotensis Belousov & Kabak, 1996
 * Trechus komarovi Belousov, 1990
 * Trechus korae J.Schmidt, 2009
 * Trechus korbi Reitter, 1903
 * Trechus korotyaevi Shilenkov, 1982
 * Trechus korrigani Morvan, 1982
 * Trechus korzhun Belousov & Kabak, 1994
 * Trechus kovali Belousov, 1989
 * Trechus kozlovi Jeannel, 1935
 * Trechus krasnovi Belousov & Kabak, 1992
 * Trechus krejcii Deuve & Queinnec, 1985
 * Trechus kricheldorffi Wagner, 1913
 * Trechus kucerai Deuve, 2011
 * Trechus kukunoricus Belousov & Kabak, 2000
 * Trechus kulpensis Belousov & Kabak, 1998
 * Trechus kuraicus Shilenkov, 1995
 * Trechus kurbatovi Belousov & Kabak, 2000
 * Trechus kurentzovi Lafer, 1989
 * Trechus kurnakovi Jeannel, 1960
 * Trechus kushtaicus Belousov & Kabak, 2001

L

 * Trechus labrangensis Belousov & Kabak, 2000
 * Trechus labruleriei Jeannel, 1921
 * Trechus laevipes Jeannel, 1927
 * Trechus lailensis Belousov, 1989
 * Trechus lallemantii Fairmaire, 1859
 * Trechus lama J.Schmidt, 2009
 * Trechus lamjunensis J.Schmidt, 1994
 * Trechus lampros Jeannel, 1935
 * Trechus laranoensis Lompe, 1999
 * Trechus larisae Belousov & Kabak, 1996
 * Trechus lassallei Deuve, 1981
 * Trechus latebricola Kiesenwetter, 1850
 * Trechus latibuli Jeannel, 1948
 * Trechus latior Darlington, 1959
 * Trechus latiplatus Belousov & Kabak, 1998
 * Trechus latus Putzeys, 1847
 * Trechus laureticola Jeannel, 1936
 * Trechus lazicus Pawlowski, 1976
 * Trechus lebenbaueri Donabauer, 2004
 * Trechus lebretae Jeannel, 1960
 * Trechus lederi Putzeys, 1878
 * Trechus ledouxianus Mateu & Deuve, 1979
 * Trechus legorskyi Donabauer, 2013
 * Trechus leleupi Jeannel, 1954
 * Trechus lencinai (Mateu & Ortuño, 2006)
 * Trechus lepineyi Paulian & Villiers, 1939
 * Trechus lepontinus Ganglbauer, 1891
 * Trechus letshkhumicus Belousov, 1989
 * Trechus levillaini Morvan, 1982
 * Trechus lgockii Pawlowski, 1978
 * Trechus lhasaensis J.Schmidt, 2016
 * Trechus libanensis Piochard de la Brûlerie, 1876
 * Trechus liguricus Jeannel, 1921
 * Trechus lijiangensis Belousov & Kabak, 2001
 * Trechus limacodes Dejean, 1831
 * Trechus lindbergi Coiffait, 1962
 * Trechus linxiaicus Deuve, 2005
 * Trechus liochrous Jeannel, 1935
 * Trechus liopleurus Chaudoir, 1850
 * Trechus litangensis Deuve, 1995
 * Trechus loebli Pawlowski, 1977
 * Trechus loeblianus Deuve, 1988
 * Trechus loeffleri Magrini & Sciaky, 2006
 * Trechus lomakini Belousov & Kabak, 1994
 * Trechus longicollis Meixner, 1912
 * Trechus longulus K. & J.Daniel, 1898
 * Trechus lucidus Jeannel, 1960
 * Trechus luculentus Barr, 1962
 * Trechus lunai Reboleira & Serrano, 2009
 * Trechus lundbladi Jeannel, 1938
 * Trechus luquensis Belousov & Kabak, 2000
 * Trechus lusitanicus Jeannel, 1921
 * Trechus luteolus Jeannel, 1960
 * Trechus lutshniki Belousov, 1987
 * Trechus luzhangensis Deuve & Liang, 2016

M

 * Trechus maceki Deuve, 1992
 * Trechus machadoensis Franz, 1984
 * Trechus machadoi Jeannel, 1941
 * Trechus machardi Jeanne, 1976
 * Trechus maculicornis Chaudoir, 1846
 * Trechus maderensis Csiki, 1928
 * Trechus magistrettii Focarile, 1949
 * Trechus magniceps Reitter, 1898
 * Trechus maisaicus Belousov & Kabak, 1994
 * Trechus majusculus K.Daniel, 1902
 * Trechus mallaszianus P.Moravec & Lompe in Löbl & Smetana, 2003
 * Trechus mandarinus Sciaky & Pavesi, 1995
 * Trechus manensis Belousov & Kabak, 1994
 * Trechus manzhangicus Deuve, 2004
 * Trechus maomao Deuve, 2005
 * Trechus maoniu Belousov & Kabak, 2020
 * Trechus maowenensis Deuve, 1995
 * Trechus maqenicus Deuve, 2004
 * Trechus maquensis Deuve, 2004
 * Trechus marcilhaci Pham, 1987
 * Trechus marcilhacianus Deuve, 2004
 * Trechus margelanicus Belousov & Kabak, 1998
 * Trechus marginalis Schaum in Kraatz, 1862
 * Trechus maritimus Sainte-Claire Deville, 1907
 * Trechus markakolensis Belousov & Kabak, 1999
 * Trechus martelluccii Magrini & Sciaky, 2006
 * Trechus martensi Deuve & Hodebert, 1991
 * Trechus martinae J.Schmidt, 2009
 * Trechus martinezi Jeannel, 1927
 * Trechus matejkai Vsetecka, 1938
 * Trechus mateui Deuve & Queinnec, 1985
 * Trechus matrismeae Pawlowski, 1972
 * Trechus mattisi J.Schmidt & Faille, 2018
 * Trechus mauritanicus Jeannel, 1909
 * Trechus meissonnieri Belousov & Kabak, 2000
 * Trechus meixnerianus P.Moravec & Lompe in Löbl & Smetana, 2003
 * Trechus mekbibi J.Schmidt & Faille, 2018
 * Trechus melanocephalus Kolenati, 1845
 * Trechus mengensis Belousov & Kabak, 2020
 * Trechus menpa J.Schmidt, 2016
 * Trechus merditanus Apfelbeck, 1906
 * Trechus meregallii Casale, 1983
 * Trechus merenicus Belousov & Kabak, 1994
 * Trechus merkli Pawlowski, 1973
 * Trechus meschniggi Jeannel, 1930
 * Trechus messoulii Casale, 2011
 * Trechus metrius Jeannel, 1935
 * Trechus meurguesianus Deuve, 1980
 * Trechus michaeli Pawlowski, 1978
 * Trechus micrangulus Reitter, 1913
 * Trechus midas Jeannel, 1927
 * Trechus mieheorum J.Schmidt, 2009
 * Trechus mila J.Schmidt, 2016
 * Trechus minaicus Belousov & Kabak, 1994
 * Trechus mingguangensis Deuve & Liang, 2016
 * Trechus minioculatus Machado, 1987
 * Trechus minitrechus J.Schmidt & Faille, 2018
 * Trechus minshanicola Deuve, 2004
 * Trechus minyops Wollaston, 1862
 * Trechus mirzayani Morvan, 1974
 * Trechus mitchellensis Barr, 1962
 * Trechus mitjaevi Belousov & Kabak, 1996
 * Trechus moctezuma Mateu, 1974
 * Trechus modestus Putzeys, 1874
 * Trechus mogul Belousov & Kabak, 2001
 * Trechus mongolicus P.Moravec, 1992
 * Trechus mongolorum Belousov & Kabak, 1994
 * Trechus montanellus Gemminger & Harold, 1868
 * Trechus montanheirorum Oromi & Borges, 1991 (Cave ground-beetle)
 * Trechus montanus Motschulsky, 1844
 * Trechus montisarerae Focarile, 1950
 * Trechus montismaiellettae Ghidini, 1932
 * Trechus montisrosae Jeannel, 1921
 * Trechus montreuili Deuve, 2004
 * Trechus morandinii Lebenbauer, 2002
 * Trechus mordkovitschi Shilenkov, 1982
 * Trechus morvanellus Deuve, 1996
 * Trechus morvanianus Deuve & Queinnec, 1985
 * Trechus mourzinellus Deuve, 1998
 * Trechus mouzaiensis Jeannel, 1922
 * Trechus muguensis J.Schmidt, 2009
 * Trechus murzorum Belousov & Kabak, 1994
 * Trechus muscorum P.Moravec & Wrase, 1998
 * Trechus myanmarensis Deuve, 2004

N

 * Trechus nairicus Pavesi & Sciaky, 1992
 * Trechus nakaguroi Ueno, 1960
 * Trechus naldii Ghidini, 1932
 * Trechus nami J.Schmidt, 2016
 * Trechus namtsoensis J.Schmidt, 2009
 * Trechus nannus Jeannel, 1935
 * Trechus nantahalae Barr, 1979
 * Trechus nanulus J.Schmidt & Faille, 2018
 * Trechus naratensis Deuve, 1993
 * Trechus narynensis Belousov & Kabak, 1992
 * Trechus natmataungensis Donabauer, 2010
 * Trechus navaricus (Vuillefroy, 1869)
 * Trechus nebulosus Barr, 1962
 * Trechus newar Deuve, 1988
 * Trechus neyamensis J.Schmidt, 2016
 * Trechus nezlobinskyi Hristovskyi, 2014
 * Trechus nicoleae Moncoutier, 1986
 * Trechus nigrans J.Schmidt, 2016
 * Trechus nigrifemoralis J.Schmidt & Faille, 2018
 * Trechus nigrinus Putzeys, 1847
 * Trechus nigrocruciatus Wollaston, 1854
 * Trechus nikolajevi Belousov & Kabak, 1992
 * Trechus nivicola Chaudoir, 1846
 * Trechus nomurai Ueno, 1998
 * Trechus nonveilleri G.Müller, 1930
 * Trechus noricus Meixner, 1911
 * Trechus nothus Jeannel, 1960
 * Trechus novaculosus Barr, 1962
 * Trechus nugax Lompe, 1997
 * Trechus numatai Ueno, 1967
 * Trechus nyalamensis J.Schmidt, 2016

O

 * Trechus obliquebasalis Breit, 1914
 * Trechus obtusiusculus Ganglbauer, 1889
 * Trechus obtusus Erichson, 1837
 * Trechus ochreatus Dejean, 1831
 * Trechus odontopeos Fresneda; Valenzuela; Bourdeau & Faille, 2019
 * Trechus ofensis Donabauer, 2013
 * Trechus ogouzicus Deuve & Queinnec, 1992
 * Trechus oligophthalmus Jeannel, 1935
 * Trechus oligops Bedel, 1896
 * Trechus olympicus Piochard de la Brûlerie, 1876
 * Trechus ongudaicus Belousov & Kabak, 1996
 * Trechus onicus Belousov & Kabak, 1994
 * Trechus oodes Jeannel, 1935
 * Trechus opgenoorthi J.Schmidt, 2016
 * Trechus oppositus J.Schmidt & Faille, 2018
 * Trechus ordinarior Deuve & Queinnec, 1993
 * Trechus orduensis Donabauer, 2007
 * Trechus oregonensis Hatch, 1951
 * Trechus ormayi Ganglbauer, 1891
 * Trechus oromiensis Magrini; Queinnec & Vigna Taglianti, 2012
 * Trechus oromii Borges; Serrano & Amorim, 2004 (Cave grround-beetle)
 * Trechus orousseti (Perrault, 1982)
 * Trechus orphaeus Pawlowski, 1973
 * Trechus orthapicalis Belousov & Kabak, 1998
 * Trechus ortizi Español, 1970
 * Trechus osellai F.Battoni & Vigna Taglianti, 1994
 * Trechus osmanilis K. & J.Daniel, 1902
 * Trechus ossae B.V.Gueorguiev, 2010
 * Trechus ovatus Putzeys, 1845
 * Trechus ovipennis Motschulsky, 1845
 * Trechus ovtshinnikovi Belousov & Kabak, 1992

P

 * Trechus pachycerus Apfelbeck, 1918
 * Trechus pallens Belousov & Kabak, 1994
 * Trechus pallidulus Ganglbauer, 1891
 * Trechus pamirensis Belousov & Kabak, 1996
 * Trechus pamphylicus Jeanne, 1996
 * Trechus paphlagonicus Maran, 1940
 * Trechus parapandus Ortuño, 2015
 * Trechus parvifrater J.Schmidt, 2016
 * Trechus patrizii Jeannel, 1960
 * Trechus pavlovskii Jeannel, 1962
 * Trechus pecignai Toribio, 1992
 * Trechus pennisii Magrini, 1984
 * Trechus pereirai Borges; Serrano & Amorim, 2004 (Cave ground-beetle)
 * Trechus perissus Andrewes, 1936
 * Trechus perpusillus Mateu & Deuve, 1979
 * Trechus perreaui Deuve & Queinnec, 1985
 * Trechus pertyi Heer, 1837
 * Trechus peynei Magrini & Sciaky, 2006
 * Trechus phaeocerus Jeannel, 1935
 * Trechus phagunensis J.Schmidt, 2016
 * Trechus phami Deuve, 1981
 * Trechus phanageriacus Belousov, 1990
 * Trechus piazzolii Focarile, 1950
 * Trechus picoensis Machado, 1988 (Cave ground-beetle)
 * Trechus pieltaini Jeannel, 1920
 * Trechus pilisensis Csiki, 1918
 * Trechus pilonensis Toribio, 2014
 * Trechus pilosicornis Deuve & Queinnec, 1993
 * Trechus pilosipennis Jeannel, 1954
 * Trechus pinkeri Ganglbauer, 1891
 * Trechus pirinicus Pawlowski, 1972
 * Trechus pisgahensis Barr, 1979
 * Trechus pisuenensis Ortuño & Toribio, 2005
 * Trechus placidus Jeannel, 1962
 * Trechus planioculus Belousov & Kabak, 1993
 * Trechus planipennis Rosenhauer, 1856
 * Trechus planiusculus A.Costa, 1858
 * Trechus platypterellus Belousov in Kryzhanovskij et al., 1995
 * Trechus plicatulus L.Miller, 1868
 * Trechus plottbalsamensis Donabauer, 2005
 * Trechus pochoni Jeannel, 1939
 * Trechus pohorjeensis Donabauer, 2006
 * Trechus polonorum Pawlowski, 1979
 * Trechus pomonae Fall, 1901
 * Trechus pongensis Fresneda; Valenzuela; Bourdeau & Faille, 2019
 * Trechus priapus K.Daniel, 1902
 * Trechus processifer Belousov & Kabak, 1992
 * Trechus promeces Jeannel, 1935
 * Trechus przewalskyi Belousov & Kabak, 1993
 * Trechus pseudoalmonius Deuve, 1993
 * Trechus pseudoalyshensis Deuve & Queinnec, 1992
 * Trechus pseudobarberi Donabauer, 2009
 * Trechus pseudocholaensis Deuve, 1998
 * Trechus pseudogansuensis Belousov & Kabak, 2000
 * Trechus pseudokozlovi Deuve, 2011
 * Trechus pseudolatus Lompe, 2011
 * Trechus pseudomontanellus Rizun, 1994
 * Trechus pseudonovaculosus Donabauer, 2005
 * Trechus pseudopiceus K. & J.Daniel, 1898
 * Trechus pseudoqiqiensis Deuve & Liang, 2016
 * Trechus pseudosubtilis Donabauer, 2009
 * Trechus puetzi P.Moravec & Wrase, 1998
 * Trechus pulchellus Putzeys, 1845
 * Trechus pulpani Reska, 1965
 * Trechus pulvinipenis Belousov & Kabak, 1999
 * Trechus pumilio Jeannel, 1923
 * Trechus pumilus Jeannel, 1927
 * Trechus pumoensis Deuve, 1998
 * Trechus putchkovi Belousov & Kabak, 1996
 * Trechus putzeysi Pandellé, 1867
 * Trechus pyrenaeus Dejean, 1831

Q

 * Trechus qagcaensis Deuve, 1996
 * Trechus qinghaicus Deuve & Queinnec, 1993
 * Trechus qingmaiensis Deuve, 2011
 * Trechus qiqiensis Deuve & Kavanaugh, 2016
 * Trechus quadrimaculatus Motschulsky, 1850
 * Trechus quadristriatus (Schrank, 1781)
 * Trechus quarelicus Belousov, 1987
 * Trechus qunlaishanicus Belousov & Kabak, 2020

R

 * Trechus raffrayanus Jeannel, 1954
 * Trechus rambouseki Breit, 1909
 * Trechus ramseyensis Donabauer, 2005
 * Trechus rarus J.Schmidt, 2009
 * Trechus ravasinianus Lorenz, 1998
 * Trechus regularis Putzeys, 1870
 * Trechus relictus Magrini; Queinnec & Vigna Taglianti, 2012
 * Trechus religiosus J.Schmidt, 2009
 * Trechus renei Belousov, 1990
 * Trechus rhilensis Kaufmann, 1884
 * Trechus rhodopeius Jeannel, 1921
 * Trechus rhombus Belousov & Kabak, 2019
 * Trechus riberai Fresneda; Valenzuela; Bourdeau & Faille, 2019
 * Trechus rira J.Schmidt & Faille, 2018
 * Trechus rivulis Dajoz, 2005
 * Trechus roanicus Barr, 1962
 * Trechus robustapicalis Belousov & Kabak, 1998
 * Trechus rolwalingensis J.Schmidt, 2009
 * Trechus ronchettii Reitter, 1911
 * Trechus roparzhemoni Morvan, 1982
 * Trechus rosenbergi Barr, 1962
 * Trechus rotroui Antoine, 1934
 * Trechus rotundatus Dejean, 1831
 * Trechus rotundicollis (Basilewsky, 1974)
 * Trechus rotundipennis (Duftschmid, 1812)
 * Trechus rougemonti (Basilewsky, 1975)
 * Trechus rougemontiellus Belousov, 2017
 * Trechus rouxi Deuve, 1995
 * Trechus rouxioides Deuve, 2005
 * Trechus rubens (Fabricius, 1792)
 * Trechus rudolphi Ganglbauer, 1891
 * Trechus rufulus Dejean, 1831
 * Trechus ruthi Jeannel, 1929

S

 * Trechus sachalinensis Lafer, 1989
 * Trechus safranboluensis Donabauer, 2004
 * Trechus sagax Jeannel, 1960
 * Trechus saglensis Shilenkov, 1998
 * Trechus sajanensis P.Moravec, 1993
 * Trechus sajuncaicus Monguzzi, 2002
 * Trechus salassus Jeannel, 1927
 * Trechus saluki Belousov & Kabak, 2019
 * Trechus sambylensis Belousov & Kabak, 1994
 * Trechus sanettii J.Schmidt & Faille, 2018
 * Trechus santaluciaensis Donabauer, 2014
 * Trechus satanicus Barr, 1962
 * Trechus saulcyanus Csiki, 1928
 * Trechus sauricus Belousov & Kabak, 1992
 * Trechus saxicola Putzeys, 1870
 * Trechus sbordonii Vigna Taglianti, 1967
 * Trechus scapulatus Belousov & Kabak, 1993
 * Trechus schaufussi Putzeys, 1870
 * Trechus schaumii Pandellé, 1867
 * Trechus schillhammeri Donabauer, 2006
 * Trechus schimperanus Jeannel, 1954
 * Trechus schmalfussi Baehr, 1983
 * Trechus schoenmanni Donabauer & Lebenbauer, 2005
 * Trechus schuelkei P.Moravec & Wrase, 1998
 * Trechus schuhi Donabauer, 2007
 * Trechus schwarzi Jeannel, 1931
 * Trechus schwienbacheri Donabauer & Lebenbauer, 2003
 * Trechus schyberosiae Szallies & Schüle, 2011
 * Trechus sciakyellus Deuve, 2001
 * Trechus scitus Jeannel, 1960
 * Trechus scotti Jeannel, 1936
 * Trechus sculptipennis J.Schmidt, 2009
 * Trechus selaensis Deuve, 2006
 * Trechus semenovi Belousov & Kabak, 1992
 * Trechus sendrai (Comas & Mateu, 2008)
 * Trechus seserligensis Shilenkov, 1998
 * Trechus sessitanus Monguzzi, 1985
 * Trechus setitemporalis Deuve, 2005
 * Trechus shaanxiensis P.Moravec & Wrase, 1998
 * Trechus shaid Belousov & Kabak, 1998
 * Trechus shakhensis Belousov, 1987
 * Trechus shangensis Belousov & Kabak, 2020
 * Trechus sharpi Jeannel, 1921
 * Trechus shatrovskyi Belousov & Kabak, 1994
 * Trechus shchurovi Belousov & Kabak, 1996
 * Trechus shibalicus Deuve & Kavanaugh, 2016
 * Trechus shilenkovi Belousov & Kabak, 1992
 * Trechus shinganensis Shilenkov, 1998
 * Trechus shivalensis Belousov & Kabak, 1998
 * Trechus shiyueliang Deuve & Liang, 2016
 * Trechus sichuanus Deuve, 1988
 * Trechus signatus Wollaston, 1857
 * Trechus sikhotealinus Ueno & Lafer, 1994
 * Trechus silveiranus Lompe, 1997
 * Trechus simienensis Jeannel, 1954
 * Trechus simplicens Belousov & Kabak, 1993
 * Trechus singularis J.Schmidt, 2009
 * Trechus sinuatus Schaum, 1860
 * Trechus sinus Belousov & Kabak, 2001
 * Trechus sivellae Monguzzi, 2002
 * Trechus sjostedti Alluaud, 1927
 * Trechus skoupyi P.Moravec & Zieris, 1998
 * Trechus smetanai Deuve, 2017
 * Trechus snowbirdensis Donabauer, 2005
 * Trechus sodalis Jeannel, 1960
 * Trechus sogdianus Belousov & Kabak, 1998
 * Trechus sokolovi Belousov, 1990
 * Trechus solarii Jeannel, 1921
 * Trechus solhoeyi J.Schmidt, 2009
 * Trechus soma Mateu & Deuve, 1979
 * Trechus songoricus Belousov & Kabak, 1992
 * Trechus sotshiensis Belousov, 1987
 * Trechus splendens Gemminger & Harold, 1868
 * Trechus stanovskyi P.Moravec, 1993
 * Trechus stefanschoedli Donabauer, 2005
 * Trechus stenoderus Jeannel, 1935
 * Trechus stictulus Belousov & Kabak, 1998
 * Trechus stipraisi Belousov & Kabak, 1992
 * Trechus straneoi Jeannel, 1931
 * Trechus strasseri Ganglbauer, 1891
 * Trechus stratiotes J.Schmidt, 2009
 * Trechus striatulus Putzeys, 1847
 * Trechus stricticollis Jeannel, 1927
 * Trechus strigipennis Kiesenwetter, 1861
 * Trechus strongylus Jeannel, 1935
 * Trechus stupkai Barr, 1979
 * Trechus suan Belousov & Kabak, 1994
 * Trechus subacuminatus A.Fleischer, 1898
 * Trechus subcordatus Chaudoir, 1846
 * Trechus sublaevis Raffray, 1886
 * Trechus subnotatus Dejean, 1831
 * Trechus subtilis Barr, 1962
 * Trechus subzoigeicola Deuve, 2009
 * Trechus suensoni Jeannel, 1957
 * Trechus suluk Belousov & Kabak, 1996
 * Trechus sundukovi P.Moravec & Wrase, 1997
 * Trechus suopoensis Belousov & Kabak, 2020
 * Trechus surkiensis Deuve, 2004
 * Trechus susamyrensis Belousov & Kabak, 1992
 * Trechus suturalis Putzeys, 1870
 * Trechus svanicus Belousov, 1989
 * Trechus sylviae Lompe, 2000
 * Trechus sylviahofmannae J.Schmidt, 2017
 * Trechus sylvicola K. & J.Daniel, 1898
 * Trechus szujeckii Pawlowski, 1972

T

 * Trechus taghizadehi Morvan, 1974
 * Trechus talassicus Belousov & Kabak, 1992
 * Trechus talequah Barr, 1962
 * Trechus talgarensis Jeannel, 1927
 * Trechus tamangi J.Schmidt, 1998
 * Trechus tarbagataicus Belousov & Kabak, 1992
 * Trechus tardokijanensis Lafer, 1989
 * Trechus tatai Reboleira; Ortuño; Goncalves & Oromi, 2010
 * Trechus tchibiloevi Anichtchenko, 2009
 * Trechus teberdanus Jeannel, 1960
 * Trechus teletskianus Belousov & Kabak, 1994
 * Trechus tennesseensis Barr, 1962
 * Trechus tenoensis Israelson & Palm, 1979
 * Trechus tentek Belousov & Kabak, 1996
 * Trechus tenuilimbatus K. & J.Daniel, 1898
 * Trechus tenuiscapus Lindroth, 1961
 * Trechus terceiranus Machado, 1988 (Cave ground-beetle)
 * Trechus terrabravensis Borges; Serrano & Amorim, 2004 (Ground-beetle)
 * Trechus terskeiensis Belousov & Kabak, 1992
 * Trechus tesnensis Belousov & Kabak, 1999
 * Trechus tetracoderus Gemminger & Harold, 1868
 * Trechus teverganus Toribio, 2015
 * Trechus tewoicus Deuve, 2009
 * Trechus thai Deuve, 1995
 * Trechus thaleri Franz, 1991
 * Trechus thessalicus Meixner, 1928
 * Trechus thessalonicus Jeannel, 1930
 * Trechus thibetanus Jeannel, 1928
 * Trechus thomasbarri Donabauer, 2005
 * Trechus thorungiensis J.Schmidt, 1994
 * Trechus thunderheadensis Donabauer, 2005
 * Trechus tianchi Perreau, 1992
 * Trechus tianshanivagus Deuve, 1993
 * Trechus tilitshoensis J.Schmidt, 1994
 * Trechus tingitanus Putzeys, 1870
 * Trechus tishetshkini Belousov & Kabak, 1994
 * Trechus tobiasi Donabauer, 2005
 * Trechus toksanbaicus Belousov & Kabak, 1993
 * Trechus tolucensis Bolivar y Pieltain, 1941
 * Trechus tonitru Barr, 1962
 * Trechus topaz Belousov & Kabak, 1998
 * Trechus torgaut Belousov & Kabak, 2019
 * Trechus toroticus Belousov & Kabak, 1996
 * Trechus torrentialis Apfelbeck, 1908
 * Trechus torressalai Ortuño & Arillo, 2005
 * Trechus torretassoi Jeannel, 1937 (Ground-beetle)
 * Trechus toxawayi Barr, 1979
 * Trechus trachypachys Sciaky & Pavesi, 1995
 * Trechus tragelaphus J.Schmidt & Faille, 2018
 * Trechus transversicollis J.Schmidt & Faille, 2018
 * Trechus triamicorum Ortuño & Jimenez-Valverde, 2011
 * Trechus tristiculus K. & J.Daniel, 1898
 * Trechus tsampa J.Schmidt, 2009
 * Trechus tsanmensis Belousov & Kabak, 2019
 * Trechus tseringi J.Schmidt, 2009
 * Trechus tshildebaevi Belousov & Kabak, 1992
 * Trechus tshitsherini Belousov, 1987
 * Trechus tuckaleechee Barr, 1962
 * Trechus tumidus Jeannel, 1921
 * Trechus turgenicus Belousov & Kabak, 1994
 * Trechus turkestanicus Belousov & Kabak, 1992
 * Trechus turnai Deuve & Queinnec, 1993
 * Trechus turnaianus Deuve, 1993
 * Trechus turnaioides Deuve, 1998
 * Trechus turukensis Belousov & Kabak, 1992
 * Trechus tusquitee Barr, 1979
 * Trechus tusquitensis Donabauer, 2005
 * Trechus tuxeni Jeannel, 1957
 * Trechus tychus Jeannel, 1960
 * Trechus tyrrhenicus Jeannel, 1927
 * Trechus tyshkanensis Deuve & Queinnec, 1992

U

 * Trechus udiensis Ortuño, 2017
 * Trechus uenyeensis Donabauer, 2006
 * Trechus ulrichi Pawlowski, 1976
 * Trechus umbricola Wollaston, 1854
 * Trechus uncifer Barr, 1962
 * Trechus unicoi Barr, 1979
 * Trechus urartaeus Pavesi & Sciaky, 1994
 * Trechus usgentensis Belousov & Kabak, 1998
 * Trechus utschderensis Reitter, 1890
 * Trechus utsi J.Schmidt, 2016
 * Trechus uygur Deuve, 1993
 * Trechus uygurorum Belousov & Kabak, 1994
 * Trechus uyttenboogaarti Jeannel, 1936

V

 * Trechus valbonensis Jeannel, 1927
 * Trechus valentinei Barr, 1979
 * Trechus valenzuelai Fresneda; Bourdeau & Faille, 2015
 * Trechus validicollis Sciaky & Pavesi, 1995
 * Trechus validipes K.Daniel, 1902
 * Trechus valikhanovi Belousov & Kabak, 1993
 * Trechus vallestris K. & J.Daniel, 1898
 * Trechus vandykei (Jeannel, 1927)
 * Trechus varendorffi Sainte-Claire Deville, 1903
 * Trechus verus Barr, 1962
 * Trechus vietnamicus Ueno, 1995
 * Trechus vignai Casale, 1979
 * Trechus viti Pawlowski, 1977

W

 * Trechus wagneri Ganglbauer, 1906
 * Trechus walteri Pawlowski, 1978
 * Trechus wayahbaldensis Donabauer, 2005
 * Trechus weiratheri Jeannel, 1929
 * Trechus weiserti Donabauer, 2007
 * Trechus weixiensis Belousov & Kabak, 2000
 * Trechus wiersbowskyi J.Schmidt & Faille, 2018
 * Trechus winkleri Jeannel, 1927
 * Trechus witkowskii Pawlowski, 1978
 * Trechus wittmeri Ueno, 1977
 * Trechus wrzecionkoellus Deuve, 2011
 * Trechus wrzecionkoi Deuve, 1996
 * Trechus wrzecionkoianus Deuve, 2005
 * Trechus wutaicola (Deuve, 1988)

X Y Z

 * Trechus xiei Deuve, 1992
 * Trechus xinjiangensis Deuve, 1992
 * Trechus xiwuensis Deuve, 1996
 * Trechus yak J.Schmidt, 2009
 * Trechus yanoi Jeannel, 1937
 * Trechus yaralensis Belousov & Kabak, 2000
 * Trechus yasudai Ueno, 1973
 * Trechus yengensis Morvan, 1982
 * Trechus yeti J.Schmidt, 2009
 * Trechus yvesbousqueti Donabauer, 2010
 * Trechus zaerensis Antoine, 1928
 * Trechus zamotajlovi Belousov, 1990
 * Trechus zangherii Jeannel, 1927
 * Trechus zarandicus P.Moravec, 1986
 * Trechus zaslavskii Jeannel, 1962
 * Trechus zetteli Donabauer, 2007
 * Trechus zhabyk Belousov & Kabak, 1994
 * Trechus zhangi Deuve, 1989
 * Trechus zhaosuensis Deuve, 2004
 * Trechus zhdankoi Belousov & Kabak, 1992
 * Trechus zhugquicus Deuve, 2009
 * Trechus ziganensis Jeanne, 1976
 * Trechus zinovievi Belousov & Kabak, 1996
 * Trechus zintshenkoi Belousov & Kabak, 1999
 * Trechus zoigeicola Belousov & Kabak, 2000
 * Trechus zoigensis Deuve, 1989
 * Trechus zolotikhini Belousov, 1990
 * Trechus zonguldakensis Donabauer, 2004
 * Trechus zorgatii Quéinnec & Ollivier, 2013
 * Trechus zvarici Belousov & Kabak, 2000

Extinct

 * † Trechus balticus J.Schmidt & Faille, 2015
 * † Trechus capito Forster, 1891
 * † Trechus eoanophthalmus J.Schmidt; Hoffmann & Michalik, 2016
 * † Trechus exhibitorius J.Schmidt; Belousov & Michalik, 2016
 * † Trechus fractus Wickham, 1912