230 THE CANADIAN ENTOMOLOGIST. 



It is perhaps unnecessary to mention that a fairly good lens should always 

 be at hand to aid the eye in discriminating the more difficult species. 



HOPLIA, 111. 



These are oblong insects, more or less flattened above, and covered 

 either entirely or in part with scales, ordinarily yellowish, brownish, 

 greenish or of metallic lustre. The claws are chelate. The two sexes 

 often differ in size and colour, and the males have thicker hind tibiae and 

 tarsi. They are found on flowers during the day. Following the scheme 

 of Dr. Leconte, the Canadian species may be thus distinguished : 

 A. Claws of hind tarsi not cleft. 



Prothorax wide, narrowed in front, sides subangulate and rounded. 

 Sexes dissimilar in colour; the ^ black, hairy, with cinereous 

 pubescence, sprinkled beneath with silvery scales ; $ brown, 

 very densely clothed with pale brown and yellowish silvery 



scales ..trifasciata. Say. 



Prothorax wider in front of the base, sides strongly angulated. 



Sexes similar, clothed with oval ochreous scales... ;«?/<:^r^^. Germ. 



AA. Claws of hind tarsi cleft near the tip ; sides of prothorax broadly 



rounded, front and middle tarsi with two claws. tnodesia, Hald. 



The Hoplia tristis of the Society list is the male of tj-ifasciata accord- 

 ing to Dr. Leconte. 



DiCHELONYCHA, Kirby. 



Elongate beetles, usually piceous or testaceous in colour, often with a 

 distinct green or bronze lustre, found on young shoots or the leaves of 

 trees. The claws are chelate {i.e., capable of being folded along the tarsi). 

 The male has the club of the antenna nearly as long as the funiculus, and 

 the outline of the middle line of the abdomen is concave when viewed in 

 profile. The table as given below will assist in identification : 

 A. Thorax without median groove, but sometimes with a line. 



b. Legs almost entirely black Backii, Kirby. 



bb. Front and middle legs testaceous, tip of hind tibiae and the hind 



tarsi piceous elotigata, Fab. 



bbb. Legs entirely testaceous. 



c. Anterior tibiae with the upper tooth obsolete, CawflfrtV/z^/j, Horn, 

 cc. Anterior tibiae tridentate. 



Median line of thorax faint, punctures 



coarser snbvittata, Lee, 



