72 C. H. TYLER TOWNSEND. 



teria of R. D., by virtue of its having two macroclisetje or bristles 

 on side of face near lower margin of eyes. The subgenus Ech'momyia 

 s. str. is without these bristles. 



59. Eeliinoiuyia thoiusoui Willist. 



iSan Francisco ^It., Arizona ; in spruce zone. Three females (one 

 coll. Cordley), July 15 ; also one female, Hart Little Spring, July 

 14; and one male, Cocanini Plateau to the north of the mountain, 

 July 6. 



Colorado (Gillette) ; one specimen bred from " unknown larva on 

 clover." 



(30. Eoliinomyia n. sp. ? 



La Vega de San Jose, Valencia County, New Mexico ; two speci- 

 mens, male and female, August 4. Flagstaff, Ariz., July 2, a smaller 

 female. This species is very similar to E. {Peleteria) iterans Wlk., 

 but may be distinguished not only by the absence of the two bristles 

 on sides of face below near eye margin, which pronounces it an 

 Echiuomyici s. str., but also by the more cinereous or grayish pol- 

 linose prothorax. In E. iterans, the prothorax is of a more shining 

 brassy poUinose shade, and the fine thoracic lines are more distinct. 

 In the present species the first two joints of antennse, and sometimes 

 the base of third, are of a lighter and more dilute reddish than in 

 E. iterans. The abdomen is marked the same, except that the anal 

 segment seems to lack, as a rule, the silvery pollinose sheen. 



61. Atropliarista Towns. 



This genus should undoubtedly be subordinated to Melanophrys 

 Willist., and A. jurinoides referred to that genus. It does not belong 

 in the Hystriciinre, but in the Tachininie. 



H2. Hystrieliia aldriclii Towns. 



This is })robably a Nemora'a. It comes near X. obscure/la v. d. 

 Wulp, but differs in having only four thoracic vittffi, and the ab- 

 dominal segments with both marginal and discal macrochretie. 



63. Goiiia sagax Towns. 



Illinois (Forbes ) ; one specimen. It has the ajitenuse not so bright 

 orange, but of a duller color. Length 9.5 mm. 



64. Argyropliylax sp. 



Colorado (Gillette). A specimen, apparently belonging to this 

 genus, was bred from Phil amp eliis achemon. 



65. Siplioplagia auouiala Towns. 



What I take to be a male sj:)ecimen of this species (southera Illi- 

 nois, Robertson) has the abdomen slightly narrowed, v/ith the pollen 

 more of silvery than a cinereous shade. 



