THE CANADIAN ENTOMOLOGIST 137 



NEW GENERA AND SPECIES OF TENTHREDINID/E : 

 A FAMILY OF HYMENOPTERA.* 



BY ALEX. D. MACGILLIVRAY, UNIVERSITY OF ILLINOIS, URBANA, ILL. 



(Continued from page 108). 



« 



Astochus aldrichi, n. sp. — Female: Body black with the 

 antennae, a short, fine line on the inner orbits, the legs below the 

 trochanters, and the abdomen beyond the basal plates, rufous; 

 the following parts: the labrum, a spot on each side of the labrum. 

 a narrow interrupted band on the edge of the pronotum, the tegulae, 

 an ovate spot on the mesopleura, a spot above the posterior coxae, 

 the front coxae beneath, the hind coxae beneath and at sides, the 

 trochanters, and the stigma in great part, yellowish white; the 

 ocellar basin elevated at sides and concave at middle; the frontal 

 furrow deep and broad, extending to the supraclypeal area; head 

 and thorax polished; postocellar area broader than long, with a 

 deep median furrow, interrupting the posterior margin of the head; 

 the wings slightly infuscated ; the saw-guides convex above and 

 below, convergent toward apex, obliquely truncated at apex. 

 Length, 8 mm. 



Habitat. — Juliaetta, Idaho. 



This specimen was collected by Professor J. M. Aldrich, for 

 whom the species is named. 



Kincaidia, n. gen. — Front wings with the radial cross-vein, 

 the radio-medial cross-vein, the free part of Rs and R4 present; 

 the medio-cubital cross-vein joined to R+M some distance before 

 the origin of M ; So wanting; the free part of R5 and the transverse 

 part of M2 not interstitial; the free part of the second anal vein 

 short, erect, transverse; the contraction of the third anal vein 

 indicated ; the hind wings with the free part of R4 and the trans- 

 verse part of M2 present; the first anal cell almost as long as the 

 one in front of it; antennae with nine segments; compound eyes 

 with the inner margins parallel and distant; the basal plates 

 divided; the claws cleft. Type, Tenthredopsis ruficorna MacG. 



This genus is related to Astochus. It is named for Professor 



Trevor Kincaid, from whom I have received many interesting 



species of sawflies from the Pacific Coast. 



* Contributions from the Entomological Laboratories of the University of 

 Illinois, No. 37. 



April, 1914 



