.1. K. MALI.OCH 1()1 



M(. W'asliiniilon, N(>\v Hampsliii-o, elevation 2500 feet, Augu.'-il 

 16, 1915, (('. W.Johnson), one female; Douglas, Alaska, (E. Jennc), 

 two females; Franconia, New Hampshire, (Morrison), one male. 

 The type and allotype are in the collection of the Boston So- 

 ciety of Natural History; one paratype is in the collection of the 

 Illinois Natural History Survey; one paratyp(^ is in the collection 

 of the Academy of Natural Sciences of Philadelphia; the two 

 from Alaska are in the collection of A. L. Melandei-, and the 

 last is in the U. S. National Aluseum. 



Trichopticus brevitarsis sp. n. 



Male. — Similar in color to inclandcri, the haltcrcs black. 



Structurally this species closely resembles viUicrm-us, and (lie aniialure 

 of the h^o;-* is similar, but the tarsi are nuich shorter, the arista is longer haired, 

 the bristly hairs on ventral surface of Tuid femur are shorter than the diameter 

 of femur, except in postero-ventral series, the long hairs on posterior surface 

 of hind tibia are confined to basal half, and the species is much smaller, being 

 only 4 mm. in length, as against 5.5 mm. in I'iUici-urun. 



Type. — cf ; Paradise Park, Mt. Rainier, Washington, August, 

 1917, (A. L. Melander), [Coll. Melander]. Paratij pes. —Two 

 males, London Hill Mine, Bear Lake, British Columbia, 7000 

 feet, July 21 'and 28, 1903, (R. P. Currie) ; two males, Kokanee 

 \a., British Columbia, 8000 feet, August 18, 1903, (R. P. Currie). 



POGONOMYIOIDES :\lalIoch 



I erected this genus for tlu; reception of a species, the mal(> of 

 which I describe in the present paper. Tlie species was originally 

 represented by one female only. In the present collection there 

 is a male and two females. The genus is closely allied to Eriphia, 

 but the male lacks the very conspicuous l)ristles on apex of fourth 

 tergite and whole of fifth, the abdomen not i:)resenting the blunt 

 appearance of Eriphia. 



Pogonomyioides atrata Malloch 



191!). PogoHoinninidcs ntrala Malloch, Rep. Can. Arctic Exped. lUi;i-16. 



iii, p. 76c. 



Male. — Entirely bla<^k, the thorax and abdomen with slight grayish pruines- 

 cence. Wings clear. Calyptrae white. Haltercs black. 



Eyes separated by little more than width of anterior ocellus. Abdomen 

 narrowly ovate; hypopygium small, not remarkably bristled; fifth sternite 

 with a small rounded posterior incision, the angles on each side glossy, chiti- 



TRANS. AM. ENT. SOC, XLVI. 



