266 Journal New York Entomological Society. [Vol. xxi. 



bristle on each. Femora pale yellow, tibiffi and tarsi testaceous, no tibial 

 bristles. Wings hyaline, veins dull yellowish ; the third section of the costa 

 subequal to the fourth and one fourth the length of the second section ; the 

 fourth vein ends at the wing tip, its sections about one to six; discal cell 

 small, the anterior crossvein before its middle and before the end of the aux- 

 iliary vein, the posterior crossvein just beyond the end of the first vein and 

 shorter than the second section of the discal cell ; basal section of the fifth 

 vein one half as long as the outer section. 



Female. — Slightly larger, about 2 mm. in length. The abdomen is blacker, 

 the incisures scarcely yellow, except the apical margin of the penultimate seg- 

 ment ; the ultimate segment is jet black, cylindrico-conical, about as long as 

 two of the middle segments together, the ovipositor short, tubular. 



Three males and four females, Moscow Mountain, Idaho, July, 

 191 1 and 1912. 



Liriomyza tubifer new species. 



Female. — Length 2 mm. Shining yellow except the following parts black : 

 occiput except the lower orbits and oral portion, small ocellar spot, center 

 of mesonotum broadly but with narrow incisions above the humeri, at the 

 suture and in back on the intra-alar stripe, and with a broad quadrate emargi- 

 nation before the scutellum (laterally and posteriorly the mesonotum is yel- 

 low), small black spots on humeri, notopleural suture, mesopleurse below and 

 above hind coxae, and a large triangular black spot on the sternopleurse, also 

 the metanotum and the large ovipositor black. The abdomen is yellowish, 

 with broad brown fasciae on the middle of the segments. Front very little 

 longer than wide, with four fronto-orbitals, the upper one reclinate and dis- 

 tant from the lower converging smaller three ; ocellar bristles extending down 

 one third the length of the front. Antennae not reaching the epistome, the 

 arista coarse and black. Mouth-parts yellow. The vibrissa scarcely differ- 

 entiated from the row of five oral hairs. Two dorsocentrals ; about six rows 

 of fine acrostichals ; one presutural. The last abdominal segment as long as 

 the preceding three, compressed near the base, the cylindrical ovipositor pro- 

 jecting. Coxae and femora pale yellow, the tibiae and tarsi blackish; no tibial 

 bristles. Halteres yellow ; calypteres with dark fringe. Wings hyaline ; the 

 third section of the costa two thirds as long as the fourth section and about 

 one sixth as long as the second section; the anterior crossvein before the end 

 of the first vein and at the middle of the small discal cell ; the sections of the 

 fourth vein proportioned one to seven, of the fifth vein two to three ; posterior 

 crossvein oblique, opposite the end of the first vein and shorter than the front 

 sections of the discal cell. 



One specimen, Hayti. 



The genus Liriomyza, established by Mik for a species with long 

 ovipositor, is hardly tenable. The present species, aside from the ovi- 



