76 Psyche [April 



in color pale yellow, neither shining nor sericeous, the central part of the face is 

 twice as broad as the sides : cheeks scarcely one-half the eye-height, the lower edge 

 with minute hairs: palpi and proboscis yellow, rarely the tip of the palpi blackened: 

 Third antennal joint oval, one-half longer than broad, the outer third to half black- 

 ened, the arista microscopically pubescent. 



Mesonotum shining, very thinly yellow-pollinose, three postsutural dorso- 

 centrals, four definite rows of acrostichals; one intraalar, apical scutellars conver- 

 gent, usually but one pronounced sternopleural, mesopleuraj not setulose. Abdo- 

 men shining, no long marginal bristles, hypopygium small, compressed. Front 

 tarsi sometimes a little dusky. Wings with decided yellowish tinge, the last section 

 of the fourth vein nearly two times the penultimate section, the last section of the 

 fifth vein nearly as long as the posterior cross vein. 



Seventeen males and twelve females. One specimen from 

 Bellingham, Washington, two from Tacoma, all the others from 

 Moscow Mt., Idaho; June to August. One female is a variant 

 in having the anterior cross vein located further towards the end 

 of the wing, so that the penultimate section of the fourth vein is 

 about one-third the ultimate. 



Genus Camptoprosopella Hendel. 



1. Mesonotum and pleurae each with a median dark vitta; wings strongly infumated. 



Mex., N. Mex., Col.* (melanoptera Hendel) dolorosa Williston. 



Thorax not or but faintly vittate; wings nearly hyaline 2 



2. Arista densely plumose, third antennal joint somewhat tapering, three times as 



long as broad. N. J., Fla., Ga.*, N. Mex., Peru; S. Dak. Aldrich. (xanthoplera 



Hendel) (fig. 9) verticalis Loew. 



Arista more loosely plumose, the third antennal joint oblong-ovate, less than three 

 times as long as broad. Me., Ont.*, Mass., N. Y., N. J.*, Pa.*, Ind.*, 111.*, 

 Wise, La.*, Ala.*, Tex.*, N. Mex., Col.*, Wyo.*, Cal.*, Mex., Nicaragua,* 

 W. Ind.*, S. Am.; (N. H., Mich., S. Dak., la., Kans., Vera Cruz, Oaxaca, 

 Puebla, Cuba, Aldrich) (cincta Loew; plumata Wulp; ocellaris Townsend; 



claripennis Coquillett) vulgaris Fitch. 



Mr. Aldrich has informed me that Mr. Coquillett corrected 

 the name clavipennis to claripennis in the separata he distributed, 

 and Mr. C. W. Johnson, who has recently examined his type speci- 

 men of this species in the National Museum, writes that it is 

 verticalis, under which name he submitted the specimen. The 

 error in describing the species as new under the name claripennis 

 was occasioned by Mr. Coquillett's misidentification of the dark 

 colored dolorosa as verticalis. So writes Mr. Johnson. 



