78 



U. S. NATIONAL MUSEUM BULLETIN 209 



6. Cryptocheilus idoneum Banks 



Male: Forewing 7.5 to 9.5 mm. long ; apex of clypeus with the middle 

 half truncate, projecting laterad of the truncation as a short lobe; 

 median notch of sixth sternite broadly U-shaped with a rounded bot- 

 tom; subgenital plate with a median longitudinal raised triangular 

 area having an attenuate point reaching to the apex, the sides of the 

 raised areas distinct but not sharp; apical margin of subgenital plate 

 truncate or somewhat retuse, with a fringe of short stout setae. 

 Coloration as in the female. 



Female: Forewing 9 to 13.5 mm. long; clypeus in side view flatter 

 than in the other Nearctic species of the genus, in front view with the 

 apex rather strongly, arcuately concave; mandible (when not eroded) 

 about 0.95 as long as the clypeus is wide, its apical tooth rather broad. 



Black. Body pubescence blackish; lower corners of face dusky 

 stramineous; wings blackish or largely orange-yellow, according to 

 the subspecies. 



There are two subspecies, differing only m wing color. No inte- 

 grades between them are yet known and it may eventually develop 

 that each should be considered a full species. 



6a. Cryptocheilus idoneum idoneum Banks 



Psammochares tenuicornis Banks, 1910, Psyche, vol. 17, p. 249, cf (name pre- 

 occupied). Type: cf , Southern Pines, N. C. (Cambridge). 



Cryptocheilus idoneus Banks, 1910, Psyche, vol. 17, p. 250, 9 . Type: 9 , South- 

 ern Pines, N. C. (Cambridge), 



Psammochares gracilicornis Banks, 1911, Journ. New York Ent. Soc, vol. 19, p. 

 225 (new name for P. tenuicornis). 



Wings blackish, the apical 0.16 ± of the forewing deeper black. 

 Specimens (lOcf, 309): From Florida (Branford, Bristol Road in 

 Gladsen County, Fort Lauderdale, Marineland, Myakka River State 



Figure 37. — Localities for Cryptocheilus idoneum idoneum. 



