June, '07] ENTOMOLOGICAL NEWS. 241 



12. Sphegina infuscata Loew. 



One female from Moscow, Idaho. The pile on the dorsum 

 of the thorax is very delicate and nearly obscure. Formerly 

 recorded from Alaska, Oregon, Colorado and New Hampshire. 



13. Sphegina lobata Loew. 



A female from Moscow, Idaho. Front and face black, 

 covered with fine white pubescence. Antennae brownish. The 

 abdomen has a bluish cast, the large testaceous spots on the 

 third and fourth segments are wanting, the fifth segment 

 does not have the appearance of sordid white. Legs whitish 

 yellow, hind legs black; base of femora, band in middle of 

 tibiae yellowish ; tarsi brownish yellow. Formerly recorded 

 from Middle States, New Hampshire, Oregon, New Jersey, 

 Xew York. 



U- Hammers chmidtia ferruginea Fall. 



Five males and one female from Pike's Peak, Col., July 

 20, 1906 (Prof. Bruner). The face is lighter than I would 

 infer from the description. Formerly recorded from Wash- 

 ington and the Saskatchewan River. 



15. Volucella evecta Walker. 



Yar. facialis \Yilliston. Face reddish yellow in the middle 

 and thickly clothed with yellow pile. The dorsum of the 

 thorax with black pile. Pleura with long yellow pile. Formerly 

 recorded from Xew England, Middle States, British Posses- 

 sions, California, Alaska, A male from Pike's Peak, Col., July 

 20, 1906 (Prof. Bruner). 



16. Eristalis saxornm Wiedeman. 



Five females and four males from Pike's Peak, Col., July 

 22, 1906 (Prof. Bruner). The yellow spots on the second 

 segment of the males are very distinct, nearly all of the 

 opaque markings of the abdomen of the females are wanting. 

 Formerly recorded from Georgia, Pennsylvania, Massachu- 

 setts, Connecticut, New Jersey. 



17- Xylota vecors Osten Sacken. 



Agrees with Osten Sacken's description, except the legs 

 and coxae are more of a fulvous, the hind tibiae and apical fifth 

 of hind femora black. Formerly recorded from White Mts., 

 Xew Hampshire, and Montreal. 



