THE CANADIAN ENTOMOLOGIST. 179 



infuscated ; tlie veins, including the costa and the stigma, 

 black ; the cl3'peus widely emargii-.ate ; the third segment of the 

 antennae about one-fourth longer than the fourth. Length, 12 



mm. Habitat — Ithaca, New York (R. L. Junghanns) 



Jnfig/iannsii, n. sp. 



7. Posterior tibiae in great part and tarsi, black : 



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

 the mandibles except at ape.\, the cheeks, the collar, the 

 tegulse, the ventral portion of the pleura, the pectus, a spot 

 above the posterior coxte, the coxas and trochanters except a 

 black line above, the anterior femora and tibite except a narrow 

 black line above, and the anterior tarsi ; the following parts 

 rufous : the middle and posterior femora except a black line 

 above, the middle tibiae except an elongate spot above at apex, 

 the middle tarsi except a black line above, the posterior femora 

 except a black line above, the posterior tibiss except the apical 

 three-fourths, the sternal abdominal segments as far as the 

 seventh, and the tergal segments two to five ; the wings are 

 very slightly infuscated ; the veins brownish ; the stigma and 

 costa black; the clypeus squarely truncate ; the third segment 

 of the antennae one-third longer than the fourth. Length, 11 

 mm. Habitat — Franconia, New Hampshire (Mrs. Annie 



Trumbull Slosson) Slossonii, n. sp. 



Posterior tarsi and tibise rufous : 



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

 the mandibles except at apex, the cheeks, the sides of the basal 

 plates, and a spot above the posterior coxfe ; the following parts 

 rufous : the collar, the tegulfe, the pleura, the pectus, the legs 

 except a black line above on the coxje, trochanters, and femora, 

 and the abdomen, including the venter ; the wings are hyaline ; 

 the veins, including the costa and the stigma, luteous ; the 

 clypeus roundly emarginate ; the third and fourth segments of 

 the antennae subequal in length. Length, 10 mm. Habitat — 

 Washington (Prof C. V. Piper) sicatus, n. sp 



8. Pectus pale rufostigmus, MacG 



Pectus black q 



9. Posterior femora wholly pale 10 



Posterior femora wholly or in great part black 13 



