WJlliston.] ^14 [jlay ]i,^ 



California ! Apparent!}' a common species, as twenty-five specimens are 

 in my collection. 



Syrphcs ribesii Linne, O. S., Pr. Bos. Soc. Xat. Ilist., 1ST4, 139. 

 Oregon, California, New England ! Europe. Male specimens ■with the 

 basal portion of the femora black, agree quite with Eastern specimens. 



*SYRPiitJS PiiOTRiTus O. S., Wcst. Dipt., 328 Marion Co., California. 

 Unknown to me. 



Syrphus Lesueurii Macq., O. S., Pr. Bos. Soc. Xat. Hist., 1875, 143. 

 "Washington Terr. ! A single specimen agrees closely with those from 

 New England. 



*Syrphus intrudens O. S., West. Dipt., 32G. California. Unknown to 

 mc. 



Syrphus americanus Weid., O. S., Pr. Bos. Soc. Xat. Hist. 1875, p. 145. 



Female specimens agree quite with New England ones, and I have little 

 doubt of their identity. Calif., Oregon ! 



*Syrphus fumipennis Thomson, Eugenics Resa, 490, California. 



Syrphus yelutinus, sp. no v. 



r^ 9 • — Eyes distinctly pubescent. Face obscurely yellow, with a broad 

 median black stripe, extending to the oral margin ; antennte deep black. 

 Frontal triangle brassy black, extending to the base of the antenniB. Front 

 ($) black, brassy in the middle. Thorax greenish-black, with a metallic 

 lustre, and rather abundant rufous pile, pleuri3e Avhite pollinose, the pile 

 more whitish. Scutellum black in the basal part, subtranslucent yellow- 

 ish at the margin. Abdomen long (shaped nearly like Platycheiras) 

 nearly parallel on the sides towards the end of the fourth segment ; the 

 color opaque black with short black pile and three interrupted cross- 

 bands ; the first pair of spots in the second segment, broad, nearly square, 

 separated by less than half their width, whitish-yellow, second and third 

 pairs narrow, rectangular, separated by about their own width, not at- 

 tenuated before the lateral margins, bluish-white. Legs black, terminal 

 half of anterior and middle femora, anterior and middle tibial, except 

 brownish rings beyond the middle, yellow. Wings hyaline, stigma 

 brown. Long. corp. 11-13 mm. Two specimens. Mt. Hood, Oregon. 



Syrphus disjunctus, sp. nov. 



^, — Eyes bare. Frontal triangle blackish, with a brassy reflection ; 

 face reddish-yellow with a bluish reflection, Avitliout any stripe or spot on 

 the tubercle, cheeks black, the oral border behind, yellow. Antenna^ 

 brownish-black, the basal half of third joint yellowish-red. Thorax me- 

 tallic green black, with short reddish pile, longer on the scutellum ; 

 scutellum bluish opalescent, black at the base. Abdomen black, with 

 three pairs of bright yellow spots, the first pair small oval, second and 

 third pairs nearly square, rather broader on the outer sides, separated by 

 a very distinct black space from the lateral margins, fifth segments on the 

 anterior corners, yellow. Legs sordid yellow, anterior and middle femora 

 toward the base, and posterior legs except more or less of the tip of femora. 



