196 Journal New York Entomological Society. [Voi. viii. 



Amalopis constans, sp. nov. (PI. VIII, fig. i8.) 



Ochraceous ; head darker ; frontal gibbosity, rostrum and palpi brown ; antennae 

 pale yellowish ; dorsum of the thorax pale ochraceous with three broad darker stripes, 

 the median one divided ; all of the portion back of the suture, except the scutellum, 

 brownish ; pleura pale ochraceous ; halteres yellowish ; legs yellowish ; tips of the 

 femora, tibia and tarsi infuscated ; abdomen brownish toward the tip ; genitalia 

 brown ; wings, especially in the anterior portion, with a brownish tinge ; the origin 

 of the praefurca, all of the cross veins, the bases of the first and second submarginal 

 and the posterior cells, and the tips of the auxiliary and the first longitudinal veins, 

 clouded with brown ; first submarginal cell shorter than the second ; second posterior 

 cell sessile ; posterior cross vein near the inner end of the discal cell ; veins brownish 

 yellow. Length, male l8 mm. ; female 20 mm. ; wings 17 mm. 



Habitat: Olympia, Wash. (Type.) Seattle. (Kincaid.) Toke- 

 land, Wash., and South Bend, Wash. (Doane.) Type no. 142. 

 Wash. Agric. Coll. & S. of S. 



Dicranota argentea, sp. nov. (PI. VIII, fig. 19.) 



Brown ; head grayish brown ; vertex, front of gibbosity, palpi and antennae 

 darker brown ; dorsum of thorax grayish brown with three dark brown stripes, the 

 median one very broad ; pleura and metanotum silvery gray ; halteres pale, knob 

 brown ; legs dark brown ; tarsi and tips of tibia and femora almost black ; base of 

 femora yellowish ; abdomen grayish brown ; ovipositor ferrugineous ; wings hyaline ; 

 stigma brown, filling the space between the two marginal cross veins ; auxiliary vein 

 ends in the costa in the stigma ; first marginal cross vein close to the base of the first 

 submarginal cell, second at the tip of the first vein ; second submarginal cell but little 

 longer than the first posterior cell ; five posterior cells ; discal cell open, coalescing 

 with the third posterior cell. Length, female 9 mm. 



Habitat: Seattle, Wash., one female. (Kincaid.) Type no. 143. 

 Wash. Agric. Coll. & S. of S. 



Polyangseus, gen. nov. 



Two submarginal cells ; five posterior cells ; discal cell open, coalescing with 

 third posterior cell ; two marginal cross veins between the first and second veins ; 

 supernumerary cross veins in the first and second submarginal cells and in the second 

 basal cell ; subcostal veins some distance before the origin of the prsefurca ; praefurca 

 short, strongly arcuated at the base ; first submarginal cell shorter than the second ; 

 antennae I3Jointed ; if bent back they would not reach beyond the collare ; front 

 very broad posteriorly, rapidly narrowing anteriorly, without distinct gibbosity ; eyes 

 with a very short pubescence, contiguous below ; rostrum and palpi short ; tibia with 

 short spurs at the tip. 



Belongs to the group of Amalopina with 13-segmented antennas 

 and discal cell open. The description of this genus is based on a 

 single specimen which may be further described as follows : 



