LEONARD BASEMAN. 313 



Psychoda albipiiiictata Williston. 

 Psychoda aJbipunctatn Williston, Entomological News, IV, p. 113 (1893). 

 "Wings rather broad, clothed rather thinly with brownish and blackish hair; 

 a tuft of blackish hair near each furcation ; at the extremity of each vein, save 

 the first, and last, a smaller, white one; a small white tuft also near the black 

 one on the anterior furcation ; the prefurca of the second vein with longer 

 and yellowish hair. Abdomen in ground color, luteous and blackish, the hair 

 abundant and erect, for the most part gray, or brownish-gray, with black inter- 

 mixed. Hair of the thorax brownish-gray, abundant ; autennse yellow, elongate, 

 longer than the abdomen ; basal joints moderately thickened, tlie remaining 

 joints slender, verticellate with white hairs. Legs brown, clothed with brownish 

 hair and tomentum, with narrow annuli of white tomentum at tip of tibige and 

 metatarsi ; hind metatarsi ciliated ; tarsi stout. Length 2.2 mm. ; wings 2.2 mm." 



Hah. — Havana, Cuba. Collection of National Museum. 



PsycliOfIa albitarsis Banks. 

 Psychoda albitarsis Banks, Canadian Entomologist, XXVII, p. 324 (1895) ; 

 Banks, Canadian Entomologist, XXXIII, p. 275 (1901). 

 "Wings moderately broad, tip not very acute, clothed with blackish hair; some 

 specimens show a patch of more dense hair on the middle near the costal mar- 

 gin ; the fringe is black, except at the tip, where it is white ; behind, the fringe is 

 over four times as long as the width of a cell ; head, thorax and abdomen densely 

 clothed with black hair; legs with dense black hair, except the tarsi, which are 

 white or pale yellow. Antennte very short, pale, with whitish hair. Length of 

 wing 2.4 mm. 



"Differs from P. nigra by white apical fringe, and white tarsi and less pointed 

 wings; from P. margiufdis by larger size, white tarsi and black haired body." 



Hab. — Ithaca, New Yoi-k, June and July. 



Psychoda horizoiitala n. sp. 



Head, thorax and body deep black ; clothed with dark gray and black hair; 

 legs black, well clothed with gray and smoky hair; scales on tarsi light. Wings 

 narrowly ovate, acutely angulated at tip of second simple nervure; veins and 

 wing border dark brown to black, evenly but rather sparingly clothed with dark 

 gray and smoky hair; fringes narrow and thin, po.sterior hardly one-fourth the 

 breadth of wing; same color as the hair on veins. Anterior furcation in the 

 middle of the wing, about one-eighth the length of wing nearer tip of wing than 

 the posterior. Length of wing 1.3-1.6 mm.; width .45-.6 mm. Length of an- 

 tennae one and one-half the breadth of wing; 13-jointed ; 1-2 stronger than the 

 rest; first longer than the second ; 3-13 with basal enlargements; their diameters 

 less than the length of the slender pedicles; thirteenth with terminal spike, 

 bearing three slight enlargements. Nodes and pedicles black, whorls light ; basal 

 segments sparingly clothed with light scales. Genitalia very prominent ; basis 

 of inferior pair of male genitalia broad behind, but tapers rapidly toward base ■ 

 inferior appendages strong, club shaped, slightly enlarged at base, but tapering 

 only slightly until near the tip, where it constricts rapidly to a rather acute tip; 

 bearing a single strong clavate tenticle; about twice the length of the basis- 

 length one-half the breadth of wing; superior pair about as long as inferior; 2- 



TBANS. AM. BNT. SOC. XXXIII. (40) OCTOBER, 1907. 



