THE CANADIAN ENTOMOLOGIST. 



337 



THE COLEOPTERA OF CANADA. 



BY H. F. WICKHAM, IOWA CITY, IOWA. 



VI. The Endoimychid/E and Erotylid,^ of Ontario and Quebec. 

 These two families immediately follow the Coccinellidae in our lists, 

 and are evidently related to them in many respects, the former, perhaps, 

 the more closely, especially in tarsal structure. In habits there are, 

 however, wide differences, the Coccinellidae, as already stated in a former 

 paper, being chiefly aphidivorous, while the Endomychidse and Erotylidae 

 are mostly fiingivorous. 



Taking up the groups separately, we may consider the Endomychidse 

 first. These may be defined as Coleoptera, usually rather small in size, 

 less convex and more elongate than typical Coccinellse, and differing also 

 in having much longer antennas, the last three joints of which form a 

 distinct club. The tarsi are four-jointed, the third joint often minute and 

 anchylosed to the fourth. The claws are simple, the first ventral segment 

 without coxal lines ; the elytra cover the dorsal segments and the wings 

 are without long fringes. The larvae of the more typical genera, such as 

 Epipocus and Aphorisia, are moderately elongate, only slightly convex, 

 scaly above, the sides of the body with appendages as shown in the figure 

 (fig. 53, larva; fig. 54, pupa of A. vittata 

 after Smith). That oi Mycetcea is, however, 

 of a different shape, as shown by Westwood, 

 who figures it as of elongate form, the seg- 

 ments with deeply incised sutures and armed 

 laterally with numerous bristles, the termi- 

 nal segment with about nine bristles along 

 the hind margin. 



The Endomychid genera found in the pro- 

 vinces named may be thus known : —  

 A. Tarsi distinctly four-jointed ; smaller species. 



b. Body oval, pointed behind; surface pilose Mycetcea. 



bb. Body oblong, or subparallel ; surface glabrous. 



Elytra black, shoulders and apex red ; thorax unspotted. /^/^a/z/V. 



Elytra reddish or yellowish, with two black fasciae ; thorax with 



black spot , Phyviaphora, 



53- 



