Leptomonas

Leptomonas is a genus of parasitic flagellate protist belonging to family Trypanosomatidae and subfamily Leishmaniinae sensu Maslov & Lukeš 2012. It is a monoxenous parasite of mainly Hemiptera, Diptera, and Siphonaptera insects.

In addition to Leptomonas, one-host trypanosomatids from insects have been traditionally placed in genera Crithidia, Blastocrithidia, Herpetomonas, Rhynchoidomonas, and  Wallaceina.

Systematics
The etymology of the genus name Leptomonas derives from the two Ancient Greek words, meaning "fine-grained, tiny", and  , meaning "alone, isolated" (as an adjective), or "a unit" (as a name).

There are 18 species of Leptomonas.
 * Leptomonas agilis Chatton
 * Leptomonas brasiliense (Franchini) França
 * Leptomonas buetschlii W.S. Kent
 * Leptomonas ciliatorum H.-D. Görtz & J. Dieckmann, 1987
 * Leptomonas costoris Wallace, Todd & Rogers
 * Leptomonas davidi Lafont
 * Leptomonas gerridis (Patton) Berliner
 * Leptomonas karyophilus Gillies & Hanson
 * Leptomonas lata Skvortzov
 * Leptomonas leptoglossi Hanson & McGhee
 * Leptomonas lunulata Massart
 * Leptomonas lygaei (Patton) Berliner
 * Leptomonas melophagia (Flu) Berliner
 * Leptomonas moramango
 * Leptomonas mesnili Roubaud
 * Leptomonas muscae-domesticae (Diesing) Senn
 * Leptomonas pangoniae Rodhain, Pons, Vandenbranden & Bequaert
 * Leptomonas pisciformis Skvortzov
 * Leptomonas soudanensis Roubaud