THE CANADIAN RNTOMOLOGIST. 333 



There is some variation in liie arrangement of the white patches on 

 thorax and wings : the legs and antennse are wholly black, so I do not 

 think it can possibly be a form of P. Siossonce, Will. 

 Psychoda marginalise nov. sp. 



Black, head and thorax with whife hair, but not very dense; abdomen 

 with black hair, and often a small patch of white hair each side at tip ; 

 wings thinly clothed with black and gray hair, and some scattered white 

 ones near base, two prominent patches of erect black hair just beyond the 

 middle of the wing ; the fringe dark gray, except near the tip on each 

 side, where it is whitish, giving the appearance of a white margin to a 

 black wing ; it is very long, on the posterior margin nearly as long as the 

 breadth of the wing ; legs dark with gray hair. Antenna? slender, black, 

 with whorls of gray hair, about as long as the width of wing ; wings 

 narrow, acute at tip. The inferior pair of ^ appendages are long and 

 slender ; at first they are parallel, then they diverge and curve upward ; 

 they are clothed with fine black hair ; the superior pair are very far 

 apart at base, about two-thirds as long as the inferior pair, gradually 

 tapering and but little curved toward each other. Length of wing, 1.8 to 

 2 mm. 



Not uncommon on low herbage near the edge of a swamp. June. 

 Sea Cliff, N. Y. All my specimens seem to be males. 



Easily recognized by its general black colour, two black patches on 

 wing, and the apical white fringe. 

 Psychoda bicolor, nov. sp. 



Head and thorax yellowish-white, abdomen black, the former with 

 white, the latter with black hair ; wings with black hair, most dense 

 toward base and on costa ; fringe black or dark gray behind, where it is 

 about three or four times as long as the width of a cell ; legs black, with 

 black hair; antennse slender, slightly longer than breadth of wing, black, 

 with whorls of dark gray hair ; the wings are broader than usual, very 

 oblique behind, and acute at tip. The inferior $ appendages are three- 

 jointed, the basal joints nearly united, the second joint tapering and 

 curved upward, about as long as the first joint, at tip with a short, 

 recurved, pointed joint; superior appendages two-thirds as long; widely 

 separated, curved downward, slender at tip. Length of wing, 2.4 mm. 



Not uncommon in the same locality as P. viarginalis ; only males 

 known to me. Distinguished by its general black colour, except white head 

 and thorax. 



