Vol. XI] COLE AXD LOVETT—LIST OF OREGON DJPTERA 251 



296. Aphcebantus borealis Cole, new species 

 Male: Length 6 mm. Black, shining in ground color. 

 Head black, the proboscis black and not projecting beyond 

 the oral margin; palpi yellow. Occiput pruinose above with 

 short yellow pile and yellowish scales. Antennae black, the 

 styliform portion of third joint about as long as the thick- 

 ened basal portion. 



Thorax shining black with white and yellow tomentum 

 and yellow pile. Scutellum with yellowish tomentum at base 

 and tip, the rest bare and shining black; bristles of thorax 

 and scutellum reddish. Pleura gray pollinose with some 

 whitish scales near the center; whitish pile above front coxae, 

 yellowish along dorso-pleural suture. 



Abdomen black, thickly covered with brownish yellow 

 tomentum above, white on first segment and posterior 

 margin of second. Long, erect, whitish pile at sides of first 

 segment. Venter with whitish scales not obscuring ground 

 color. Genitalia rather large, about one-third as long as the 

 rest of the abdomen, black, yellowish on the sides. Pile 

 above on genitalia sparse and rather long, shorter below. 

 Legs white and yellow tomentose, hind femora with several 

 short bristles but no long hairs below. Femora black except 

 tip, the tibiae and tarsi reddish. Halteres yellow. Wings 

 hyaline, the apical two-thirds of subcostal cell yellowish. 



Holotype, male, No. 835, Mus. Calif. Acad. Sci.; F. R. 

 Cole, collector, June 25, 1917. 



Type locality, Hood River, Oregon. 



Of this species a single specimen was taken; it runs to 

 couplet 20 in Coquillett's table of species (Trans. Amer. 

 Ent. Soc, XXI, p. 105), and there the characters do not 

 apply as the hypopygium is not "small and not more than 

 half as long as the abdomen." 



297. Aphoebantus peodes O. S. 

 Hood River, VI-3 (Cole). Described from Mexico. 



298. Geron senilis (Fabr.) 

 Hood River, VII-25 (Cole). 



