344 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Figures 183, 184. — Localities: 183 (left), Trychosis similis ladiarmus; 184 (right), T. s. 



similis. 



2b. Trychosis similis similis (Cresson) 



Cryptus similis Cresson, 1864, Proc. Ent. Soc. Philadelphia, vol. 3, p. 299; ?. 

 Type: ?, Delaware (Philadelphia). 



Male: Black. Palpi white, their fii'st and last segments whitish or 

 stramineous to brown; front of scape sometimes fulvous or white; 

 tegula white, sometimes its mesal part fulvous or brown; apex of 

 front coxa often and apex of middle coxa sometimes white in front; 

 front and middle first trochanters usually white in front, the rest 

 reddish brown to blacldsh; front and middle second trochanters and 

 femora fulvo ferruginous ; front and middle tibiae fulvous, their upper 

 sides entirely white except for usually a small indistinct faintly 

 darkened area near their basal 0.3; front and middle tarsi white, their 

 fifth segments brown; hind pair of trochanters ferruginous, infuscate 

 toward the coxa; hind femur ferruginous, its apical 0.2 ± usually 

 infuscate and its dorsal edge often with faint infuscation; hind tibia 

 blackish; hind tarsus white, the basal 0.2 ± of its fu'st segment some- 

 times tinged with fulvous, the apical 0.2 to 0.8 of its fifth segment 

 brown; wings subhyaline; abdomen ferruginous. 



Female: Black. Palpi pale brown to brown; flagellum blackish 

 brown, with a broad white dorsal stripe that covers about 4 segments; 

 tegula fulvous to blackish; second trochanters brownish ferruginous; 

 front and middle legs beyond trochanters ferruginous, their tarsi 

 brownish apically; hind femur ferruginous, its apical 0.2 i more or 

 less infuscate dorsally, the infuscate area usually extending a Itttle 

 basad along dorsal edge ; hind tibia blacldsh bro-wn ; hind tarsus medium 

 brown, the segments 2 and 3 and often segment 4 and apex of segment 

 1 largely or entirely whitish, stramineous, or paler brown than is most 

 of segment 1 ; wings subhyaline ; abdomen ferruginous. 



