Vol. XI] COLE AND LOVETT—LIST OF OREGON DIPTERA 3^3 



749. Eremomyia apicalis Stein 

 Forest Grove, V-12 (Cole). 



750. Hammomyia unilineata (Zett.) 

 Hood River, V-16 (Cole). Aldrich det. 



751. Phorbia brassicae (Bouche) 



Common, VII-IX. This is the cabbage-root maggot, and 

 is very destructive in parts of Oregon. It was reported as 

 a pest as early as 1891. 



752. Phorbia cinerella (Fall.) 

 Tillamook, VIII-29 (Creel) ; Vale, VI-29. Malloch det. 



753. Phorbia rubivora Coq. 



Common in several localities in the state. The larvae 

 girdle the tips of raspberry, blackberry, dewberry, and 

 loganberry vines. The flies appear early in April and are 

 seen throughout May and June. 



754. Phorbia ruficeps (Zett.) 

 Corvallis. 



755. Phorbia trichodactyla (Zett.) 

 Corvallis (Lovett). 



756. Pegomyia affinis Stein 

 Corvallis. Malloch det. 



757. Pegomyia bicolor (Wied.) 



Bred out at Corvallis, V-9-1915, from larvae mining in 

 the leaves of dock; Tillamook, 111-26 (Burrill). 



758. Pegomyia hyoscyami (Panz.) 



Corvallis, V-2 (Lovett), other dates from V-3 to VII-3. 



The larvae are leaf miners on beets and spinach. 



759. Chirosia idahoensis Stein 



Forest Grove, V-17 (Cole); Salem, VII-4 (Melander). 

 Melander det. 



Corvallis and Forest Grove, V (Cole). 



