292 MEMOIRS ON THE COLEOPTERA 



ately dense and granuliform. Length (cf 9 ) 25.5-27.5 mm.; width 

 7.8-8.1 mm. Eastern North America as far south as Florida. 



titillator Fabr. 



Elytra rounded at the apices, with a slender spine projecting posteriorly 

 from the arcuation and not in prolongation of the suture. Body 

 very much smaller and more slender than in the preceding; coloration 

 and maculation nearly similar, the elytral punctures in long irregular 

 series and with the two obtusely raised lines of each elytron much 

 more evident, the punctures toward the humeri as sparse as else- 

 where and not, or scarcely at all, graniferous; prothorax very nearly 

 as long as wide, the lateral tooth short and right angled, the central 

 elevation strong; antennae very slender, one-half longer than the 

 body in the male; legs nearly similar but more slender. Length 

 (cf ) 18.5 mm.; width 5.1 mm. Texas angusticollis n. sp. 



Elytra conjointly and broadly rounded at apex, each w r ith an obtusely 

 dentiform and more or less feeble sutural prolongation 2 



Elytra conjointly and broadly rounded at tip, the sutural angles never 

 dentiform and in all but extreme cases notably rounded 3 



Elytra each obliquely prolonged apically and rather acute at apex; 

 elytral maculation in large, solid and well denned masses 4 



2 Elytra in color and maculation almost exactly as in titillator, except 

 that the two brown sublateral spots near basal third form a much 

 more oblique line; sculpture differing conspicuously, the punctures 

 toward the humeri becoming densely crowded and rugulose; body 

 smaller in size and more slender, the basal joint of the antennae 

 more slender. Length (9 ) 18.5-22.0 mm.; width 5.2-7.2 mm. Six 

 females from Virginia and New Jersey, [dentator Fabr. ; minor Lee.]. 



carolinensis Oliv. 



Elytra in general scheme of maculation nearly as in titillator but blackish- 

 brown, rarely paler brown; sculpture coarser and more rugose, 

 more crowded toward the humeri, which are more prominently 

 angular; body smaller, shorter, with more rapidly cuneiform elytra 

 and somewhat less elongate antennae, these being more or less 

 nearly two and one-half times as long as the body in the male. 

 Length (cf 9 ) 14.7-22.7 mm.; width 4.3-7.0 mm. Rocky Moun- 

 tain regions of Colorado, New Mexico and Arizona. Abundant. 

 [clamator Lee.] maculosus Hald. 



Elytra in maculation nearly as in maculosus but shorter, much broader 

 and more parallel in form and deep black in color; sculpture nearly 

 similar but still coarser, closer and more rugose throughout. Length 

 (9) 15-5-23.5 mm.; width 4.8-7.8 mm. Sierra Nevada Mountains 

 of California and Oregon oregonensis Lee. 



Elytra as in maculosus, very rapidly cuneiform from the base, similarly 

 sculptured but with the small spots of rusty brown tomentum more 

 numerous; body very much larger in size; antennae (d 71 ) two and 

 three-fourths times as long as the body, the basal joint much thicker 

 than in maculosus, more finely and evenly punctured and clothed 

 uniformly but not densely with short appressed white hairs, the 

 fourth joint shorter than the third but about half as long as the 

 elytra; entire vertical front of the head extremely densely punctate 



