Vol. XI] COLE AND LOVETT—L1ST OF OREGON DIPTERA 289 



561. Xylota analis Will. 

 Detroit, VII (Bridwell) ; Mt. Jefferson, VIII (Lovett). 



562. Xylota barbata Loew 



Hood River, V and VI (Cole) ; Mt. Jefferson; Corvallis, 

 V to VIII (Lovett). 



563. Xylota ejuncida Say 

 Hood River, V and VI (Cole). 



564. Xylota flavitibia Bigot 

 Hood River, X-3 (Cole). 



565. Xylota fraudulosa Loew 



Hood River and Corvallis, V to VII (Cole and Lovett). 



566. Xylota nemorum (Fabr.) 



Hood River and Forest Grove, V (Cole); Corvallis, 

 IX-18. 



567. Xylota obscura Loew 

 Williston lists from Oregon. 



568. Xylota pigra (Fabr.) 

 Horse Lake, VII-25 (Bridwell). 



569. Xylota scutellarmata Lovett 

 Hood River, V-17 (Cole). 1919, Proc. Cal. Acad. Sci., 

 Ser. 4, IX, p. 241. 



570. Xylota stigmatipennis Lovett 



Hood River, VI (Cole). 1919, Proc. Cal. Acad. Sci., 

 Ser. 4, IX, p. 242. 



571. Xylota subfasciata Loew 

 Corvallis, V-15 (Lovett). Bred from larvae collected in 

 decayed heart of fir, Pseudotsuga taxifolia. 



572. Eumerus strigatus Fall. 

 Corvallis, V; Hood River, VII-20, breeding in onions. 

 (Cole and Childs). 



