612 Coleojiterological Notices, VI. 



Pronotal punctures rather coarse, sparse and unevenly disposed, the surface 

 wholly impunctate in large areas before the middle of the disk. 



areiiariu!i» Csy. 



Pronotal punctures coarse and rather close-set throughout the disk, though 



unevenly distributed; body very much more broadly oval...latiis n. sp. 



Pronotal punctures fine and sparse, somewhat evenly distributed over the 



entire disk. 



Body elongate-oval ; sides of the prothorax rather feebly arciiate. 



ciliatus Esch. 

 Body short and broad, the elytral asperities smaller, more distinctly de- 

 fined and more isolated; sides of the prothorax strongly arcuate; head 

 relatively smaller in size Ctll'tlllUS u. sp. 



All of the species have long coarse hair well developed along 

 the sides of the body, its function probably being to maintain the 

 spiracles free from sand while burrowing. 



C. latus. — Very broadly oblong-elliptical, moderately convex, polished, 

 deep black, the legs dark piceo-ruf ous ; palpi and antenna; paler, testaceous, 

 the labrum blackish; pubescence very short, sparse, yellowish, becoming 

 long at the sides of the body, short and very stiff on the legs. Head not two- 

 fifths as wide as the prothorax, coarsely and densely punctured, less closely so 

 on the epistoma, subimpunctate toward base, the eijistomal suture marked by 

 a deep transverse channel; apical sinuation very broad and feeble; antennae 

 with the club three-jointed and feeble, the joints strongly transverse, the last 

 narrower as usual. Prothorax distinctly more than twice as wide as long; 

 apex one-half as ^vide as the base and deeply emarginate, the angles narrowly 

 rounded; sides strongh' convergent from the base, arcuate, more strongly so at 

 base, the basal angles obliterated; base transverse and almost rectilinear 

 throughout, with the usual fine coriaceous margin ; disk coarsely deeply and 

 conspicuously punctate, the punctures generally rather close-set but uneven in 

 distribution. Elytra barely as long as wide, about twice as long as the pro- 

 thorax, coarsely asperate and polished. Length 7.7 mm. ; width 4.8 mm. 



California (San Diego). 



At first sight this species might be mistaken for globosus, but 

 may be readily distinguished by its very much more broadly 

 rounded form and ver^- shallow epistomal sinus. 



C ciirtiilus. — Broad and oblong-oval, convex, polished, the elytra dull 

 toward apex, black, the under surface and legs dark rufo-piceous, the tropin 

 and antennte still paler and rufous; surface glabrous except posteriorly and at 

 the sides of the body. Head rather small, barely two-fifths as ^vide as the pro- 

 thorax, roughly sculptured, the epistoma smoother, the suture deep; apical 

 sinus broad and feeble but stronger than in ciJiatus ; labrum feebly sinuato- 

 truncate at apex. Prothorax .short and transvei-se, slightly more than twice 

 as wide as its greatest length, the apex more than one-half as wide as the base; 



