Trichacis is a genus of parasitoid wasps in the family Platygastridae. Members of this genus have a tuft of setae on the mesoscutellum and transverse striae or rugulae above the antennae. They are parasitoids of Cecidomyiidae, although the hosts of most species remain unknown.
The genus has been revised for the Nearctic, Neotropics, and Europe. There have been more than 60 species described in Trichacis; however, many of these have been since synonymized.
Species These 66 species belong to the genus Trichacis:
Trichacis abdominalis Thomson, 1859 Trichacis acarinata Arias-Penna & Masner Trichacis acuminata Arias-Penna & Masner Trichacis acuta Arias-Penna & Masner Trichacis afurcata Szabó, 1977 Trichacis alticola Masner, 1983 Trichacis ariaspennae Buhl, 2011 Trichacis arizonensis (Ashmead, 1893) Trichacis bidentiscutum Szabó, 1981 Trichacis bison Masner, 1983 Trichacis celticola Masner, 1983 Trichacis clypeata Arias-Penna & Masner Trichacis colombiana Arias-Penna & Masner Trichacis concavata Arias-Penna & Masner Trichacis cornicola (Ashmead, 1893) Trichacis cornuta Fouts, 1925 Trichacis corrugata Arias-Penna & Masner Trichacis costaricana Arias-Penna & Masner Trichacis crossi MacGown, 1989 Trichacis delsinnei Arias-Penna & Masner Trichacis denudata Buhl, 2001 Trichacis depressa Arias-Penna & Masner Trichacis dianae Arias-Penna & Masner Trichacis didas (Walker, 1836) Trichacis dracula Masner, 1983 Trichacis elongata Masner, 1983 Trichacis fernandezi Arias-Penna & Masner Trichacis fusciala Szabó, 1981 Trichacis hajduica Szabó, 1981 Trichacis hansoni Arias-Penna & Masner Trichacis howensis Dodd, 1924 Trichacis huberi Masner, 1983 Trichacis hungarica Szabó, 1977 Trichacis illusor Kieffer, 1916 Trichacis indica Kieffer, 1907 Trichacis kaulbarsi Arias-Penna & Masner Trichacis khajjiara Mani, 1975 Trichacis laticornis Buhl, 2001 Trichacis magnifica Arias-Penna & Masner Trichacis mahunkai Szabo, 1981 Trichacis mandibulata Masner, 1983 Trichacis meridionalis (Brues, 1910) Trichacis mexicana Arias-Penna & Masner Trichacis nosferatus Buhl, 1997 Trichacis opaca Thomson, 1859 Trichacis panamana Arias-Penna & Masner Trichacis pannonica Szabó, 1977 Trichacis pecki Arias-Penna & Masner Trichacis pisis (Walker, 1836) Trichacis procera Arias-Penna & Masner Trichacis proximata Arias-Penna & Masner Trichacis pulchricornis Szelényi, 1953 Trichacis punctata Arias-Penna & Masner Trichacis pyramidalis Masner, 1983 Trichacis quadriclava Szabó, 1981 Trichacis remulus (Walker, 1836) Trichacis rufipes Ashmead, 1893 Trichacis sculpturata Arias-Penna & Masner Trichacis striata Masner, 1983 Trichacis tatika Szabó, 1977 Trichacis texana Fouts, 1925 Trichacis transversata Arias-Penna & Masner Trichacis triangulata Arias-Penna & Masner Trichacis tristis (Nees von Esenbeck, 1834) Trichacis virginiensis Ashmead, 1893 Trichacis vitreus Buhl, 1997
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