Sept., 1904. 1 ViERECK AND CoCKERELL : PhILANTHID^. 141 



Thorax r Pronotum not distinctly punctured nor margined, slightly impressed 

 medially, a yellow spot on each side ; propleura black, slightly grooved and striate ; 

 dorsulum dull, punctures irregularly spaced some adjoining others more than twice 

 their width apart, lateral impressed lines indicated ; mesopleura dull reticulate ; 

 scutellum punctured much like dorsulum ; postscutellum almost impunctate banded 

 with yellow ; metathorax punctured like the dorsulum, enclosure dull impunctate, 

 with an indistinct median groove, a yellow spot on each side ; wings as in eriogoni, 

 greater part of tegulas yellow, stigma pale brown, nervures brown, marginal cell and 

 apex of wing smoky ; legs black, apices of four anterior femora with some yellow, 

 tibiae and tarsi of four anterior legs yellow, the tarsi becoming brownish, posterior 

 tibis yellow, apical third black, tarsi brownish. 



Abdomen : Uniformly punctured, the punctures nearly adjoining, raised portions 

 of ventral segments nearly as distinctly punctured as the dorsum ; pygidium twice as 

 long as broad at base, finger shaped ; first segment with a yellow spot on each side, 

 segments 2, 3, 4 and 5 with an apical yellow band, broad laterally, narrow in the 

 middle ; ventral segments 3 and 4 with a yellow spot on each side. 



Pubescent like townsendi. 



Habitat. — Pecos, New Mexico, June 25, 1903, on Fallugia (W. 

 P. Cockerell). 



Genus APHILANTHOPS Patton. 



Table of Species. 



Female. Reddish, markings yellow ; black or blackish band from eye to eye on the 



vertex, enclosing ocelli concinnulus. 



Males. Black predominating, markings yellow, reddish hue confined to legs and 



abdomen, sometimes the thorax is partly reddish concinnulus. 



Abdomen not reddish, black and yellow. 



Face all black taurulus. 



Face with prominent yellow marks. 



Punctures on front between ocelli and eyes separated, rather distinct ; 



flagellum all black f rigidus . 



Punctures on front between ocelli and eyes rather indistinct ; flagellum 

 partly brown bakeri . 



Aphilanthops concinnulus Cockerell. 



Rincon, N. M., both sexes (Cockerell); Las Cruces, on Solaninn 

 (Cockerell, 898). Dunning has erroneously referred the female to 

 ^l. utahensis Baker. 



Aphilanthops taurulus Cockerell. 



Las Cruces, N. M., male at staminate flowers of Croton neomexi- 

 caniim, September 25, 1895 (Cockerell). Las Cruces (Cockerell, 

 5090). Also found at Rincon. 

 Aphilanthops frigidis (Smith). 



Highfolls, N. M., May 29, 1902 (Viereck). 



