322 THE CANADIAN ENTOMOLOGIST 



ly, a large spot on the metaepisternum, upper margin of meta- 

 epimeron narrowly, transverse metascutel extensions, and the upper 

 margin of the metapostscutellum narrowly sometimes. Meso- 

 scutellum fairly strongly convex; mesoepisternum sharply pointed. 



Abdomen — From pale to quite pale ferruginous; two basal 

 terga completely and more or less of the third or third and fourth 

 except medially and longitudinally, black; sides of basal tergum 

 and basal half of venter straw colour. 



Legs — Straw colour; the following parts black: the outside of 

 the anterior coxae more or less and the intermediate above or above 

 and outside, the posterior coxae except the inner face and the inner 

 longitudinal half beneath, a longitudinal band on the anterior 

 and intermediate femora above (it may be abbreviated in greater 

 part towards the base on the former), the posterior femora behind 

 and faintly at base before, a longitudinal line on the anterior and 

 intermediate tibiae above which broadens out apically, posterior 

 tibiae entirely or almost entirely, the intermediate tarsi above and 

 the posterior except the apical segment (may be only brownish in 

 both). 



Wings — Fore wings hyaline, or faintly clouded; costa may be 

 brown; stigma brown to dark brown; costal cell only slightly 

 translucent and quite strongly beyond costal cross-vein; veins 

 blackish. Hind wings hyaline, apical portion may be very faintly 

 clouded; veins brownish to blackish. 



Length — 9-10 mm. 



Described from one specimen. 



This species may be Norton's angulata, the type of which is 

 lost. It answers fairly well to the description of angulata, 

 except in an important respect in connection with the coloration 

 of the head, viz., the presence of the lobate black spot on the front 

 above the antennae and vertex. It is possible, of course, that 

 Norton failed to mention this, but he noted it in describing lobata 

 and angulifera, both of which were described previous to angulata. 

 The lobate spot in lobata and its relation to the black behind the 

 upper part of the eye, which is the same as in nortoni, is accurately 

 noted in a later redescription of lobata (Trans. Am. Ent. Soc, II, 

 1868-9, p. 229), but the redescription of the coloration of the head 



