1899] ENTOMOLOGICAL NEWS. 33 



Habitat : vSeattle, Washiugtou, March 24 to June 15, 1898. 

 Captured ou a basement window. 



In this species the bifurcations ol' the \ eins are so obscurely 

 indicated that it Mas difficult to place generically ; the ante- 

 rior bifurcation is very close to the apex of the wing and the 

 pasterior one iiuite close to the Ijase. The wings are folded 

 roof-like in repose. 

 Pericoma sitchana, n. sp. 



■^' Body black, clothed with gray hair. Legs black, clothed with 

 gray hair and scales. Wings ovate, broadly rounded at the tip, the 

 first simple nervure terminating just before the apex ; bifurcations 

 equidistant from the base (5f the wing ; hair upon the veins mixed 

 black and white, the black being most pronounced at ths apices 

 of the veins and at the bifurcations; length of wing 2.5 mm.: fringe 

 gray, with a patch of white at the apex. Antennte one-half as long 

 as the width of the wing. 16-iointed : ioint 1 cylindrical: joint 2 

 large, globular; joints 5-16 globular, separated by very short pedi- 

 cels, the nodes sparsely clothed with gray hair. Gentalia not con- 

 spicuous, black, clothed with gi*ay hair. 



Habitat : 8itka, Alaska, July 12, 1897. 

 Pericoma triloba, n. sp. 



+ Body brown, densely clothed with gray !uiir. Wings broadly 

 ovate, not quite twice as long as broad, apex distinctly pointed, ex- 

 actly at end of first simple nervure. clothed with gray hair upon 

 thev3ins; fringe dark gray ; length of wing 3 mm.; posterior bifur- 

 cation much nearer the base of the wing than the anterior one. 

 Legs brown, clothed with gray hair and scales. Antennae one-half 

 as long as the width of the wirg. not much longer than the maxil- 

 lary palpi: 17-jointed: joint 1 moderately large; joint 2 extremely 

 large, subglobose towards apex, clothed with scattered whorls of 

 long gray hair; joint 17 minute. A'entral plate broad at base 

 cmarginate laterally and terminating in three distinct lobes: ovi- 

 positor yellow, slightly curved. 



zP Gentalia inconspicuous, very hairy. Iijferior appendages 2- 

 jointed ; joint 1 large and stout; joint 2 short, cylindrical, curving 

 towards the apex, which is broadly and obliquely truncate. Supe- 

 rior appendages 1-jointed, short, straight, tapering from the base to 

 an acute point. 



Habitat : Seattle, ^^'ashington. Numerous specimens were 

 secured in a railroad culvert situated on the campus of the 

 univei-sity, ^Earch 12 to June 1. 1S9S. 

 Pericoma variegata. n sp. 



I Body black, clothed with white hair, except a small patch of 

 black hair near the base of the wing. Less black, clothed with 

 black and white hair. Wings rather acutely I'ounded at the tip, 

 more than twice as long as broad ; hair upon the veins deep black. 



