THE CANADIAN ENTOMOLOGIST. 37 



but that insect has a moderate transverse antebasal impression on the 

 prothorax. Length, .08 in. 



Ch.ktocnema, Staph. 

 This is a large genus, well represented in the United States. The 

 Canadian list contains only three species, one of which {ahdacea, Cr., 

 known from Georgia and Florida) may be erroneously cited, leaving 

 only deiiticulata and parcepiuictata as undoubted natives. Several are 

 known from the Lake Superior region, and some of them must undoubt- 

 edly occur in Ontario. Following Dr. Horn's arrangement, these re- 

 corded forms may thus be known ; all of them belonging to the group 

 in which the sides of the thorax are not obliquely truncate at the front 

 angles. 



Head distinctly punctate ; upper surface of body bright bronze or 

 brassy; elytral strife of coarse deep punctures, the scutellar series 

 usually irregular, the remainder not confused. Form oval, not elon- 

 gate, clypeo-frontal region subopaque. .oS-.io in.. . .denticu/ata, 111. 

 Head impunctate. 



Thorax with entire basal marginal line, which is not defined by 

 punctures ; legs entirely piceous, surface subopaque. .06-08 



in ahttacea, Cr. 



Thorax finely and sparsely punctate, with basal marginal row of 

 distinct punctures, surface shining. Femora piceous, tibiae and 

 tarsi brownish or rufotestaceous. .06 in.. ..parcepunctata, Cr. 



DiBOLiA, Latr. 



The form of the spur of the hind tibit^ (broad with a distinct emar- 

 gination at tip) will in itself define the genus. D. borealis, Chevr. 

 ( = (P.rea, Melsh.), is recorded from Canada and is about .12 in. long, oval, 

 convex, robust, the surface bronzed, elytral stride of coarse punctures ; 

 anterior and middle legs and hind tibiae reddish. 



PsvLLiODES, Latr. 



AntenucB ten-jointed, inserted against the inner border of the eye, 

 hind tarsi inserted before the end of the tibiae and slightly to the outer 

 side, first joint more than half the length of the tibia. The Canadian 

 species is F. punciulata, Mels., a bronzed beetle .08-10 in. long, of 

 elongate-oval, rather convex form, thorax at base not narrower than the 

 elytra, which are punctato-striate, the punctures coarse and deep, closely 

 placed. The male has the last ventral distinctly impressed. 



