114 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv 



SrURMIA DISCALIS, new species. 



Black, the palpi yellow, vertex nearly twice a.s wide as either e3'e, 

 two pairs of or])ital bristles, frontals descending to apex of second 

 antennal joint, antenna? nearly as long- as the face, the third joint about 

 five times as long as the second, arista thickened on the basal fourth. 

 the peiniltiniate joint shorter than broad, cheeks one-fourth as wide as 

 the Qje height, vibrissa? on a level with front edge of oral margin, 

 facial ridges bristl}^ on the lowest fourth, proboscis rather slender; 

 thorax gray pruinose, marked with four l)lack \'ittfe, three pairs of post- 

 sutural dorsocentral bristles, three sternopleurals, scutellum bearing- 

 three pairs of large marginal bristles, the last pair diverging, directed 

 backwai'd; abdomen yellowish gra}' pruinose, the broad apices of the 

 last three segments polished, each segment bearing marginal, the last 

 three also with discal bristles, venter depressed, destitute of short, 

 backwardly curving spines in the middle; hind tibia? unevenly ciliate, 

 middle tibia^ bearing a single bristle near the middle of the outer- 

 anterior side; wings hyaline, third vein bearing two bi-istles near the 

 base, calypteres Avhite: length. S mm. A female specimen. 



Habitat. — W isconsin . 



Type.—C'At. No. (i21<>. U.S.N.M. 



MASICERA POLITA, new species. 



Differs from Sturm ia discal /s as follows: Palpi black, ^^ertcx one- 

 third as wide as either eye, no orbitals, frontals descending nearh^ to 

 middle of third antennal joint, the latter three times as long as the 

 second, cheeks one-sixth the eye height, body polished, the mesonotum 

 and narrow bases of the last three abdominal segments thinly whitish 

 pruinose, middle tibia? bearing three bristles near the middle of the 

 outer-anterior side, hind tibiie not ciliate, third vein of wings ))earing 

 a single bristle near the base, front pulvilli elongate; length, 5 mm. A 

 male specimen collected August 8 by Mr. C. H. T. Townsend; received 

 from Prof. T. D. A. Cockerell. 



HaMtat. — White Mountains, New Mexico (altitude about 8,000 feet). 



Typ'-.—Odt. No. «i22(», U.S.N.M. 



EUTHERA BICOLOR, new species. 



Head yellow, occiput with a l)road ))lack streak extending from the 

 neck to each eye and bordered below by a whitish pruinose stripe 

 which extends downward along the orbit, sides of front and face 

 whitish pruinose, vertex four-fifths as wide as either eye. two pairs 

 of orbitals, frontals short and sparse, descending to base of antenna?, 

 cheeks one-sixth as wide as the eye height, antenni\? as long as the 

 face, the first two joints yellow, the thud black, slightly over twice as 



