NEW MUSCOID FUES FROM THE ANDEAN MONTANYA 175 



Eulasiopalpus niveus, new species. 



Length of body, 1 3 to 1 4 mm. ; of wing, 1 3 to 14 mm. Two males, 

 one Verrugas Canyon, about 5,400 feet, July 23, 1913, on flowers of 

 Buddleia occidentalis ; the other Matucana, about 8,000 feet, August 

 16, 1913. 



This species has practically the identical coloring of Epalpus niveus. 

 Cheeks and epistoma are faintly yellowish with very thin silvery pollen. 

 Clypeus, parafacials, parafrontals, and orbits silvery, the occiput silvery- 

 cinereous. Parafrontals black under the pollen. Palpi, tibiae, and tarsi 

 yellow. Antennae browTi, junction of second and third joints subfulvous, 

 sometimes first two joints wholly fulvous-brownish. Frontalia brown. 

 Whole thorax blackish, with silvery bloom. Scutellum brown to dark 

 brown, also silvery. Abdomen colored as in E. niveus, except only that 

 the mediein vitta-like black is not truncate posteriorly but terminates in a 

 point on anal segment, in front view dividing the silvery-white of and 

 segment ; the black of third segment is subdiamond-shaped rather than 

 subquadranguleur ; the silvery-white of second and third segments is deeply 

 constricted by the black entering on each side. Venter wholly black, 

 with hardly a trace of bloom. Femora fulvous, basal half of middle and 

 hind femora and based third of front ones brown to dark browm. Wings 

 of exactly same deep infuscation ; tegulae white, but the narrow border 

 of front scale brown or blackish. 



Type, the Verrugas Canyon specimen. 



Subfamily LARVAEVORINAE 

 Tribe MICROPALPINl 



Vibrissomyia lineata oroyensis, new subspecies. 



Length of body, 10 to 12 mm. ; of wing, 8.5 to 9.5 mm. Five 

 females and one male, Oroya, over 1 2,000 feet, March 6, 1 9 1 3, on 

 short herbage. 



Differs from lineata T. in third antennal joint being conspicuously 

 shorter than second in both sexes, and vibrissae distinctly longer than 

 peristomal bristles; in both of which characters it agrees with Andino- 

 myia as distinguished from Vibrissomyia, but the totality of characters 

 throws it unmistakably m the latter genus. The cheeks are not as wide 

 as eye-height, being considerably less in both sexes. Front tarsi of female 

 are strongly flattened and widened, which character was omitted from 



