Tibellus

Tibellus is a genus of slender crab spiders described by Simon in 1875, belonging to the order Araneae, family Philodromidae. Species of this genus are present in Eurasia, Africa, Americas and Australia.

Description
Adult members of this genus can reach 4 - 15 mm of length and can mostly be encountered above the soil surface (epigeal organism) on low vegetation, foliage or herbaceous plants, where they actively pursue their preys, as they do not make webs. This genus, which includes active hunters, was once considered a subfamily within the sedentary 'crab spiders' (Thomisidae species).

The basic color of the body is light brown or pale yellow. It is elongate and slender (hence the common name), the carapace (prosoma) and the cylindrical abdomen (opisthosoma) show a large brown stripe in the midline of the back. The long and thin legs are more or less equal in length and they usually are stretched out along grass stems or leaves, the first two pairs forwardly directed.

They generally have eight black equal-sized eyes in two horizontal rows of four each, with posterior median ones close to each other.

Species list

 * Tibellus affinis O. P.-Cambridge, 1898 — Mexico
 * Tibellus armatus Lessert, 1928 — Central, Southern Africa
 * Tibellus asiaticus Kulczynski, 1908 — Russia, North America
 * Tibellus aspersus Danilov, 1991 — Russia
 * Tibellus australis (Simon, 1910) — Botswana
 * Tibellus bruneitarsis Lawrence, 1952 — Zimbabwe, South Africa
 * Tibellus californicus Schick, 1965 — USA
 * Tibellus chamberlini Gertsch, 1933 — USA, Canada
 * Tibellus chaturshingi Tikader, 1962 — India
 * Tibellus chilensis Mello-Leitão, 1943 — Chile
 * Tibellus cobusi Van den Berg & Dippenaar-Schoeman, 1994 — East, Southern Africa
 * Tibellus cucurbitus Yang, Zhu & Song, 2005 — China
 * Tibellus demangei Jézéquel, 1964 — Ivory Coast, South Africa
 * Tibellus duttoni (Hentz, 1847) — USA, Mexico
 * Tibellus elongatus Tikader, 1960 — India
 * Tibellus fengi Efimik, 1999 — Russia, China, Japan
 * Tibellus flavipes Caporiacco, 1939 — East, Southern Africa
 * Tibellus gerhardi Van den Berg & Dippenaar-Schoeman, 1994 — East, Southern Africa
 * Tibellus hollidayi Lawrence, 1952 — East, Southern Africa
 * Tibellus insularis Gertsch, 1933 — Cuba
 * Tibellus jabalpurensis Gajbe & Gajbe, 1999 — India
 * Tibellus japonicus Efimik, 1999 — Russia, China, Japan
 * Tibellus katrajghatus Tikader, 1962 — India
 * Tibellus kibonotensis Lessert, 1919 — East, Southern Africa
 * Tibellus kimi Seong, 2013 — Korea, Republic of
 * Tibellus macellus Simon, 1875 — Europe to Central Asia
 * Tibellus macellus georgicus Mcheidze, 1997 — Georgia
 * Tibellus maritimus (Menge, 1875) — Holarctic
 * Tibellus minor Lessert, 1919 — Africa
 * Tibellus nigeriensis Millot, 1942 — Sudan
 * Tibellus nimbaensis Van den Berg & Dippenaar-Schoeman, 1994 — Guinea-Bissau
 * Tibellus oblongus (Walckenaer, 1802) — Holarctic
 * Tibellus oblongus maculatus Caporiacco, 1950 — Italy
 * Tibellus orientis Efimik, 1999 — Russia, China
 * Tibellus paraguensis Simon, 1897 — Paraguay, Argentina
 * Tibellus parallelus (C. L. Koch, 1837) — Palearctic
 * Tibellus pashanensis Tikader, 1980 — India
 * Tibellus pateli Tikader, 1980 — India
 * Tibellus poonaensis Tikader, 1962 — India
 * Tibellus propositus Roewer, 1951 — Yarkand
 * Tibellus rothi Schick, 1965 — USA
 * Tibellus septempunctatus Millot, 1942 — Guinea
 * Tibellus seriepunctatus Simon, 1907 — Africa
 * Tibellus shikerpurensis Biswas & Raychaudhuri, 2003 — Bangladesh
 * Tibellus somaliensis Van den Berg & Dippenaar-Schoeman, 1994 — Somalia, Zimbabwe
 * Tibellus spinosus Schiapelli & Gerschman, 1941 — Argentina
 * Tibellus sunetae Van den Berg & Dippenaar-Schoeman, 1994 — Southern Africa
 * Tibellus tenellus (L. Koch, 1876) — Russia, China to Australia
 * Tibellus utotchkini Ponomarev, 2008 — Russia
 * Tibellus vitilis Simon, 1906 — India, Sri Lanka
 * Tibellus vosseleri Strand, 1906 — Algeria
 * Tibellus vossioni Simon, 1884 — Africa
 * Tibellus zhui Tang & Song, 1989 — China