254 THE CANADIAN ENTOMOLOGIST. 



evenly cleft ; sheath elongate, narrow, regularly tapering ; cerci very 

 slender and elongate. Colour black, shining ; apical half of clypeus and 

 other mouth-parts, broad outer angles of pronotum, tegulse, and legs, for 

 the most-part, light yellow ; posterior tarsi slightly infascated ; extreme 

 base of coxa?, especially posterior pair, brownish-black ; venter of abdo- 

 men yellowish, strongly infuscated ; wings hyaline; veins, including all of 

 stigma, dark brown. 



Described from a single female, reared by H. G. Dyar, from larva 



collected in New York. This species is related to Californica. 



The larva is practically the same in habit as P. iermhiaiis, except 

 that it is a different colour and lives on Populus gratididentata. 



Ama7irouc))iatiis azaieiF, n. sp. 



Female. — Length, 7 mm. ; rather-slender; clypeus very broadly and 

 shallowly emarginate ; frontal crest very strongly raised, bulbous, un- 

 broken ; walls about ocellar basin distinctly defined, not very prominent ; 

 fovea shallow, elongate, oval ; antennae short, tapering, fourth and fifth 

 joints longer than third ; claws deeply cleft, rays subequal ; sheath 

 ]:)ointed, with distinct scopa near tip ; cerci long, slender, nearly filiform ; 

 venation normal ; stigma narrow, strongly acuminate. Colour dull black 

 and pallid white, the latter restricted to face below antennpe, orbits, pro- 

 notum, tegulfe, and entire venter except meso-epimera and sheath, more 

 or less of the margins of some of the basal dorsal sclerites and lateral 

 edge of all of dorsum of abdomen, including the sides of the large clasp- 

 ing terminal arc, also pallid ; legs slightly infuscated on upper and lower 

 edges of femora, tibiie and tarsi ; hind tarsi altogether infuscated ; wings 

 hyaline, veins dark brown, including all of stigma. 



Male. — Length, 5.5 mm.; slender; structurally about as female. 

 Colour the same, except that the abdomen is black above and the lateral 

 area of the ventral sclerites is strongly infuscated ; the pronotum is also 

 more or less black near the anterior edge, and the extreme base of coxae, 

 especially the hind pair, is more noticeably infuscated. 



Described from two specimens, male and female, reared by H. G. 

 Dyar, from larvte coHected at Jefferson, N. H., on Azalea. The female 

 of the species is very near oregonensis in colour, but differs in the darker 

 stigma and wing veins, and in the infuscated terminal dorsal arc of the 

 abdomen. 



