Vol. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 257 



328. Lasiopogon cinereus Cole 

 Hood River, V-28 to IX-24 (Cole). 1919, Proc. Cal. 

 Acad. Sci., Ser. 4, IX, p. 229. 



329. Heteropogon ludius (Coq.) 

 Lookingglass, VI- 14 (Black). 



330. Heteropogon senilis Bigot 

 Mt. Hood (Coquillett). 



331. Pycnopogon cirrhatus O. S. 



Hood River, VI-6, VII-7 and Mosier, VI-14 (Cole). 

 This species is not a typical Pycnopogon. It has more the 

 appearance of Heteropogon. 



332. Lestomyia sabulonum (O. S.) 



Burns, VI-1 (Thompson); Ashland, VIII-2 (E. P. Van 

 Duzee) ; Mosier, VI-14 (Cole). The Mosier specimens 

 vary somewhat from the typical form but the species is 

 apparently very apt to show slight variations in chaetotaxy 

 and color. 



333. Cophura brevicornis (Will.) 



Hood River, VI-20 to VIII- 1 and Forest Grove, VI to 

 VII (Cole); Ashland, VIII-2 (E. P. Van Duzee). This 

 species is not typical of the genus but as many of the other 

 species in the genus are just as aberrant it may as well be left 

 there. 



334. Cophura cyrtopogona Cole 



Dee, VIII-1 (Childs). 1919, Proc. Cal. Acad. Sci., Ser. 

 4, IX, p. 236. 



335. Nicocles semulator (Loew) 



Forest Grove, VI (Lane), only one specimen taken. A 

 series collected at Hood River in May and June is very 

 near this species. Only males were taken and these had 

 only the last abdominal segment silvery. Possibly it will 

 prove to be an undescribed species. 



