THE CANADIAN ENTOMOLOGIST. 151 



cities and occasionally swarming on shipboard. It is readily recognized 

 by the slender form, hardly broader behind, colour above yellowish, the 

 elytra with blackish tips. Beneath it is blackish, the legs in part yellow. 

 It reaches a length of about half an inch. 



AscLERA, Schmidt. 



The two species of this genus are blackish insects of slender form, 

 though not so elongate as Ca/optis, the prothorax more or less red, the 

 elytra distinctly costate. They separate thus : 



Prothorax red, with three fove^e (one near middle of 

 base, the others anterior to this and placed one on each side 

 of the median line). Elytral costae sharply elevated. .20-.26 



inch rttficollis, Say. 



Prothorax with a large central blackish spot, the disk 

 depressed more deeply on each side of the middle line. 

 Elytral costas distinct but less sharp than in the preceding 



FigT'ts. species. .26-.32 inch. (Fig. 15.) puncticollis. Say. 



Allied to the CEdemeridae is the small family Cephaloidai represented 

 in North America by the genus Cephaloon, which resembles in form a 

 Longhorn of the Lepturoid series. The characters separating the two 

 families are to be readily perceived in the form of head and claws. In 

 Cephaloon the head is constricted behind and the claws are pectinate, 

 besides bearing a long appendage. While only one species (C. lepturides, 

 Newm.) has been actually reported from the eastern provinces, we 

 copy Dr. Leconte's table of all the American species, since one (C. 

 te7iuicorne) has been taken on the Stickeen River in British Columbia, 

 and the other may yet be met with in Canadian territory, since it is 

 known from the White Mountains and Lake Superior. Dr. Leconte's 

 table, amplified by the addition of some other characters, runs thus : 

 A. Appendages of claws broad, rounded at tip. 



b. Outer joints of antennae gradually broader, not elongated. 

 Colour extremely variable and inconstant, may be entirely 

 testaceous ; the usual colour is piceous, legs (in part), head 

 (with or without a frontal dark spot of varying size), and 

 prothorax (often with a discal spot and more or less of the 

 sides dark), testaceous. .36-.48 inch lepturides, Newm. 



bb. Four outer antennal joints slightly broader, the joints longer, 

 especially the intermediate ones. Colour variable, testaceous, 



