Vol. XI] COLE AND LOVETT— LIST OF OREGON DIPTERA 301 



645. Hemyda aurata Desv. 

 Corvallis, VII-16 (Lovett). 



646. Heteropterina nasoni Coq. 

 Hood River, VI-14 to VI-28 (Cole and Childs). 



647. Paraplagia spinulosa (Bigot) 

 Coos River, IX-25 (Rockwood). 



648. Plagia americana V. d. W. 

 Common in Oregon. 



649. Pachyophthalmus floridensis Towns. 

 Hood River, VIII-27 (Cole). 



650. Senotainia trilineata (V. d. W.) 

 Hood River, VI-8 to IX- 14 (Cole and Childs). This 

 species is a parasite of Sphecius spheciosus. 



651. Aphria ocypterata Towns. 



Hood River, VII-9 (Cole) ; Mary's Peak, V-15; Pamelia 

 Lake, Mt. Jefferson, VII-23. 



652. Ocyptera 21 dosiades Walk. 

 Forest Grove, VI 1 1- 18 (Cole). 



653. Panzeria ampelus Walk. 

 Whitman Nat. Forest, VII-16 (Chamberlin) . 



654. Panzeria radicum (Fabr.) 



Duffy's Prairie (Lovett) ; Mt. Jefferson, alt., 3,000 ft., 

 VIII-12. 



655. Gymnochaeta alcedo Loew 



Mosier, VI-14 (Cole and Childs). These specimens flew 

 low over the ground and through the grass, seldom alight- 

 ing. The species is rare in the Northwest. 



21 The species common throughout the Northwest is said by Aldrich to be 

 an undescribed form, although usually placed in carolinae. The male gent- 

 talia show good specific characters. 



