374 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Figures 203, 204. — Localities: 203 (left), Trychosis reflexa; 204 (right), T. cyperia. 



0.25 as long as mesoscutmn ; punctures on mesopleurum of moderate 

 size, separated by about 0.25 their diameter; propodeum unusually 

 long, its basal and apical carinae unusually far apart, its apical carina 

 rather evenly curved but the median portion bowed forward, the 

 carina strong sublaterally and weak or obsolete medially; hind femur 

 about 5.3 as long as deep in both sexes; sides of areolet parallel; 

 nervulus beyond basal vein by about 0.38 its length; nervellus broken 

 near its upper 0.45; first tergite moderately short, with a strong dorso- 

 lateral and a weaker ventrolateral longitudinal ridge (the ridges often 

 obsolete in female), its lateral face almost smooth in female, in male 

 with some indistinct irregular wrinkles, or sometimes the wrinkles 

 stronger and with a vertical direction; second tergite subpolished, its 

 punctures separated by about 0.8 the length of the hairs; ovipositor 

 a little more slender and its point a little shorter than usual for the 

 genus; shaft of lower valve of ovipositor with faint, irregularly vertical 

 wrinkling (entirely or mostly smooth in all other Nearctic species 

 except T. anagmus). 



Black. Palpi dark brown; tegula black; femora entirely fulvofer- 

 ruginous or sometimes more or less infuscate; front and middle tibiae 

 fulvous; front and middle tarsi fulvous, their fifth segments brown, 

 often the other segments a little infuscate, and often the median seg- 

 ments partly pale fulvous or pale yellow; hind tibia varying from 

 ferruginous with the apex darkened to entirely dark brown; hind 

 basitarsus reddish brown, its apical 0.6 ± yellowish white; segments 

 2-4 of hind tarsus yellowish white; segment 5 of hind tarsus brown, 

 its base paler; wings tinged with brown; first segment of abdomen 

 entirely ferruginous or basally infuscate, or its basal 0.7 ± blackish; 

 tergites 2 and 3 ferruginous ; tergite 4 entirely black, or in male usually 

 largely ferruginous but with some fuscous apicaUy. 



