REVISION OF TENEBRIONID SUBFAMILY CONIONTIN^ I59 



Calotaxis a notable isolation among the genera more closely 

 affiliated with Conioniis. It would appear almost certain that 

 the radically different elytral sculpture of the last two species 

 of the table, taken in connection with the more feebly developed 

 burrowing habits, as recorded by Mr. Fall (Can. Ent., 1897, 

 p. 242), is an ample reason for considering them at least sub- 

 generically removed from the normal forms. 



Coelomorpha Csy. 



This genus, while allied rather closely to Cceltis, differs in a 

 number of important structural characters, such as the lO-jointed 

 antennge with more abbreviated basal joint, in the less transverse 

 and virtually unemarginate eyes, which are similarly very 

 coarsely faceted, in the very feeble transverse epistomal suture, 

 in certain features of the prothorax, which, though possessing 

 the coriaceous basal margin of Ccehis, has the basal angles 

 rounded and the side margins without vestige of a beaded edge, 

 and in its more slender legs, all the tibiae, however, being simi- 

 larly dilated at apex. The process of the first anterior tarsal 

 joint is small, though slender, and very much less developed 

 than in Ccehis. The scutellum is very minute and similarly tri- 

 angular. The species, which are the smallest of the subfamily 

 Coniontina2, resemble Ccelus altogether in habits and facies and 

 may be described as follows : — 



Form oblong-oval, strongly convex, rather shining, black to dark rufo- 

 testaceous, the sides of the body bristling with coarse and erect 

 but only moderately dense fusco-flavate setae ; head quite evidently 

 less than half as wide as the prothorax, rather closel}', finely and 

 very muricately punctate, not transversely impressed at the suture, 

 the epistoma not tumid, the emargination rather deep and abruptly 

 formed, circularly rounded, the surface bristling throughout with 

 stiff erect setse ; prothorax two and two-thirds times as wide as its 

 median length, the sides subevenly and moderately rounded, a little 

 more converging apically, the apex very deeply sinuate, with the 

 angles narrowly rounded ; base broadly, evenly and feebly arcuate, 

 the angles very broadly rounded ; surface with a few scattered 

 punctures, almost wholly impunctate before the middle medially, 

 more closely, asperately punctate, broadly declivo-explanate and 

 bristling with stiff erect setse laterally ; elytra just visibly longer 

 than wide, at the middle about a fifth wider than the prothorax, 

 very broadly rounded behind from above, the sides parallel and 

 broadly arcuate ; surface as in Ccelus but with the sculpture very 



