THE CANADIAN ENTOMOLOGIST. 67 



Siphoplagia anomala, Tvvns., Trans. Am. Ent. Soc, XVIII, p. 350. 



This species was described from Southern New Mexico. A $ 

 specimen from So. Ills. (Robertson) proves to be the same species. It 

 is 8 mm. long. 



Plagia americana, v. d. Wulp, Biol. C.-A. Dipt., II., p. 102, pi. 3, f. 19. 



A specimen from N. Y. (Comstock) agrees with v. d. Wulp's descrip- 

 tion in all except that the third vein of the wing is bristly only to small 

 cross-vein, not beyond it. The wing, however, differs from the figure in 

 the origin of the hind cross-vein being considerably below instead of 

 opposite the small cross-vein. I am unwilling to consider it a distinct 

 species without further proof, as it otherwise agrees so closely with the 

 description, though the difference in venation can hardly be varietal. 



Plagia aurifrons, n. sp., $. 



Eyes light brown ; frontal vitta and sides of front golden, insensibly 

 shading on sides of face into the silvery of the face and cheeks ; front 

 one-third width of head ; three orbital bristles, the hindmost one weaker, 

 frontal bristles descending about half way down sides of face ; antennae 

 and arista black, the second antennal joint silvery, the third twice as long 

 as second ; proboscis brownish ; palpi yellowish rufous, blackish at base ; 

 occiput cinereous, gray-hairy. Thorax black, slightly silvery, with five 

 more or less distinct blackish vittge, the middle one obsolete anteriorly ; 

 scutellum black, more or less silvery. Abdomen shining black, bases of 

 segments two to four broadly but faintly silvery, the silvery becoming 

 most distinct when viewed very obliquely ; first segment with a lateral 

 macrochaeta and bristles, second with a lateral one and median marginal 

 pair ; third with about eight marginal, the median two more removed 

 from margin ; anal with a median discal pair, a sub-marginal sub-lateral 

 pair, and a marginal row. Legs black, femora and front tibiae silvery on 

 outside, claws and pulvilli elongate, the pulvilli smoky whitish. Wings 

 grayish-hyaline, yellowish-fuscous along veins on costal half, first 

 vein bristly its whole length, third bristly to small cross-vein, fourth vein 

 with slight wrinkle at bend \ hind cross-vein nearly parallel with inner- 

 margin of wing, but its origin considerably behind the point opposite small 

 cross-vein ; tegulse whitish ; halteres pale rufous, blackish in middle. 



Length of body, 7 mm.; of wing, 5^^ mm. 



Described from one specimen ; Pennsylvania, June 4 (Johnson). 



