304 AMERICAN PSYCHODID.^. 



Pericoma triloba Kinraid. 

 Pericoma triloba Kincaid, Entomological News, X, p. 33 (1899). 



"Female. — Body brown, densely clothed with gray hair. Wings broadly ovate, 

 not quite twice as long as broad, apex distinctly pointed, exactly at end of first 

 simple nervu re, clothed with gray hair upon the veins; fringe dark gray ; length 

 of wing 3 mm. ; posterior furcation 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 wing, not much longer than the maxillary palpi ; 

 17-jointed ; joint 1 moderately large; joint 2 extremely large, subglobose; toward 

 apex clothed with scattered whorls of long gray hair; joint 17 minute. Ventral 

 plate broad at base, emarginate laterally and terminating in three distinct lobes; 

 ovipositor yellow, slightly curved. 



''Male. — Genitalia inconspicuous, very hairy. Inferior appendages 2-jointed ; 

 joint 1 large and stout; joint 2 short, cylindrical, curving toward the apex which 

 is broadly and obtusely truncate. Superior appendages 1-jointed, short, straight, 

 tapering from the base to an acute point." 



Hab. — Sitka, Washington. March 12th to June 1st. 



Pericoma tridactila Kincaid. 

 Pericoma tridaetila Kincaid, Entomological News, X, p. 32 (1899). 



''Female. — Body light brown, densely clothed with gray hair. Wings ovate, 

 one and one-half times as long as broad, apex n)oderately acute, clothed over the 

 whole surface with gray hair, except an irregular band of white across the mid- 

 dle; fringe with basal third gray, remainder white, as long as the width of three 

 cells; length of wing 2.5 mm. Legs light brown, clothed with gray hair and 

 scales. Antennse as long as the width of the wing, 16-jointed, with dense whorls 

 of gray hair upon the nodes; joints 1-2 not larger than succeeding one; joints 

 3-15 globular, separated by slender pedicles, which are slightly longer than the 

 length of the nodes; joints 14-16 minute, closely apposed. Ventral plate longer 

 than broad, sides not emarginate, narrowing strongly toward the apex, which is 

 bilobate. 



"Male. — Genitalia conspicuous, clothed with gray hair. Inferior appendages 

 elongate, 2-jointed; basal joints stout, cylindrical, fused in the median line; sec- 

 ond joint as long as first, straight, cylindrical, tapering to a rounded apex and 

 bearing at the tip three divergent, slender, clavate processes, which are almost 

 as long as the second joint itself. Superior appendages half as long as inferior, 

 2-jointed ; joint 1 cylindrical, stout ; joint 2 as long as first, slender, tapering to 

 an acute point." 



Hab. — Seattle, AVashington. March 24th to June 15th. 



Pericoma calii'ornica Kincaid. 



Pericoma californica Kincaid, Entomological News, XII, p. 195 (1901); 



Kellogg, Entomological News, XII, p. 46 (1901), immature stages. 



"Females. — Length 2 mm. Body brown, clothed with long gray hair. Wings 



ovate, twice as long as broad, apex bluntly rounded and terminating close to the 



tip of the second simple vein ; vestiture mottled with dark brown and white 



hair; patches of erect dark brown hair upon the bifurcations and at the apex of 



the veins; patch of white hair entad to the posterior bifurcation and another 



ectad to the anterior bifurcation ; fringe gray ; posterior bifurcation closer to 



