Genus Crassomicrodus Ashmead, 1900

Crassomicrodus Ashmead 1900. Type species Microdus fulvescens Cresson 1865, designated by Ashmead 1900 [Examined].

Epimicrodus Ashmead 1900. Type species Microdus divisus Cresson 1873, designated by Ashmead 1900 [Examined].

Crassomicrodus Ashmead= ( Epimicrodus Ashmead) synonymized by Bradley 1916.

Diagnosis.

Crassomicrodus species can be distinguished from other agathidines with the following combination of characters: simple tarsal claws, without basal lobes, apicolateral pegs of the hind tibia are hair-like, labio-maxillary complex not elongate; mandible with two teeth; and metasomal tergum 1 smooth.

Description.

Head. Transverse or triangular; area between antennal sockets with a median pyramidal-shaped elevation or transverse; gena not bulging to distinctly bulging; labio-maxillary complex not elongate, mandible with two teeth, antenna with 25 to 43 flagellomeres.

Mesosoma.

Pronotum surface smooth or punctuate; notauli from lacking to impressed; anterolateral edges of scutellum with or without a small acute projection; lateral scutellar depression from smooth to crenulate; dorsal surface of propodeum from rugulose to reticulate rugose; subalar lobe separated from mesopleuron by a wide or narrow groove; metapleuron from smooth to reticulate rugose; inner spur of hind tibia from 0.47 to 0.78 times longer than basitarsus; tarsal claw without basal lobe; outer apex of the hind tibia without flattened pegs; forewing vein R1 0.47-0.70 times longer than RS; crossvein r arising before or beyond middle of stigma. Metasoma. Metasomal median tergite 1 smooth; apical width 1.78-3.92 times longer than basal width; ovipositor sheaths and ovipositor variable in length; metasoma 1.00-1.42 times longer than mesosoma.

Key to the New World species of Crassomicrodus Ashmead

Species descriptions of Crassomicrodus