lcS2 THE CANADIAN ENTOMOLOGIST. 



Posterior tibise wholly or in part pale 19. 



18. Tegulse and sides of basal plates black pallipundus, MacG. 



Tegulfe and sides of basal plates pale : 



Black, with the following parts yellow: the clypeus, the labriim, the 

 mandibles except at apex, a triangular spot each side of the 

 collar, a spot on the tegulae, a spot above the posterior cox^e, 

 the sides of the basal plates, the under side of the anterior 

 femora, tibise and tarsi, and the under side of the middle tibite 

 and metatarsi ; the clypeus squarely emarginate ; the third seg- 

 ment of the antennae twice as long as the fourth ; the wings 

 infuscated ; the veins brownish, the stigma and costa black. 

 Length, 13 mm. Habitat — Olympia, Washington (Trevor 

 Kincaid) alphius, n. sp. 



19. Posterior tibise wholly pale : 



Black, with the following parts yellow ; the clypeus, the labrum, the 

 mandibles except at apex, the palpi, a spot on the collar, the 

 tegulfe, the basal membrane, the sides of the basal plates, a spot 

 above the posterior coxae, and all the legs beyond the cox;e (the 

 legs become flavescent at apex) except a spot on the apex of the 

 middle and posterior femora above ; the clypeus squarely 

 emarginate ; the third segment of the antenna twice as long as 

 the fourth ; the wings hyaline, flavescent at base ; the costa and 

 the base and the apex of the stigma flavescent ; the stigma 

 at middle and the veins brown. Length, 14 mm. Habitat — 



Vancouver Island (Carl F. Baker) siibcoeru/ea, Es. 



Posterior tibiae black above, pale beneath : 



Black, with the following parts whitish : the clypeus, the labrum, 

 the mandibles except at apex, a spot on the cheeks, a line on the 

 collar, the tegul^, a spot above the posterior coxre, the front legs 

 beneath, including the coxte, the middle legs beneath beyond 

 the trochanters except the tarsi beyond the metatarsi, a line on 

 the apex of the posterior femora beneath, the posterior tibi?e 

 beneath, the basal segment of the posterior tarsi beneath, a spot 

 on the apex of the middle and the posterior coxae, and a spot on 

 the sides of the basal plates ; the third segment of the antennae 

 one-fourth longer than the fourth ; the clypeus squarely emargi- 

 nate ; the wings hyaline; the veins, including the costa and the 



