INSECUTOR INSCITI^ MENSTRUUS 7J. 



bristles. Apical cell not so elongate, ending one and one-half 

 times as far from wing-tip as length of fourth vein between 

 hind crossvein and bend, said length being hardly one-third 

 of length between hind and small crossveins. Lateral discals 

 of second and third segments weak, especially those of second. 

 Apical decussate moderately strong pair of scutellar bristles, 

 hardly one-half strength and length of the two lateral pairs, 

 about same as the four discals which are set in a transverse 

 row. Claws longer than last tarsal joint in male, especially 

 front ones. Epistoma extremely developed, about as long as 

 clypeus and of same size. 



Uruhuasia (Subgenus B) has frontal bristles doubled an- 

 teriorly, but otherwise agrees in main with Uruhuasia (A) 

 as opposed to Uruhuasiopsis. 



Uruhuasiopsis analis, new species. 



Length of body, 9 mm., the abdomen being flexed ; of wing, 

 8.5 mm. One male, Huariaca, Peru, about 10,725 feet, De- 

 cember 30, 1913 (Townsend). 



Head silvery pollinose with a faint golden reflection which 

 is most pronounced on cheeks, the ground color of face and 

 cheeks being light; parafrontals dark in ground color, with 

 golden pollen ; frontalia and first two antennal joints fulvous, 

 third joint and arista blackish, palpi fulvous. Beard deep 

 brassy, extending over cheeks and parafacials ; the hairs of 

 parafrontals black. Mesoscutum and scutellum covered with 

 a thick coat of golden pollen of the same dull shade as that of 

 front, no distinct vittse ; pleurae a little less thickly pollinose 

 in an oblique band extending from the shoulder to the middle 

 coxge. Abdomen deep purplish black, subshining, anal segment 

 with coat of golden ashy pollen except narrow anterior margin. 

 Venter concolorous with tergum. Legs blackish, tibiae except 

 bases rufous. Wings evenly smoky throughout, slightly yellow 

 on base ; both scales of tegulae rich brownish yellow. 



Holotype, No. 19421, U. S. Nat. Mus. 



Pictoepalpus, new genus. 



Genotype, Pictoepalpus clarus Townsend, new species. 

 Differs from Chromoepalpus by the second aristal joint being 



