CERAMBYCID/E 377 



Post-humeral spot not only always present, but the largest and peculiarly 

 modified, in being elongate, sometimes confluent with the anterior 

 juxta-sutural spot 13 



9 Antennae without trace of annulation and with the lower fringe reduced 

 to a very few short hairs. Body elongate, convex, rather shining; 

 cinereous vestiture above sparse and scarcely visible, the erect hairs 

 few in number; color rufous, the elytra rather less red; head coarsely, 

 unevenly punctate, with a fine entire subcallous median line, the 

 antennae dark brown, with brownish vestiture, black basally, the 

 scape rufescent basally; prothorax one-half wider than long, with 

 the lateral prominences strong, the four spots small, piceous; surface 

 very finely, sparsely punctate, the median umbo abruptly and 

 moderately elevated; scutellum black as usual; elytra with moder- 

 ately coarse and not very close-set, deep punctures, which become 

 rather abruptly much finer and very sparse in nearly inner third; 

 legs subuniformly and slightly picescent, probably from immaturity. 

 Length (cf) 12. o mm.; width 3.8 mm. California (locality un- 

 recorded) omissus n. sp. 



Antennae brownish-black, deep black basally, each of the outer joints 

 with a very fine annulus of cinereous hairs. Body small in size, 

 with even and not at all dense cinereous vestiture above and with 

 many erect bristling blackish hairs, the vestiture closer beneath but 

 not very dense, not concealing the integument on the legs, which are 

 somewhat piceous; head finely, not closely punctate, the fine median 

 line blackish; prothorax transverse, obtusely and moderately 

 protuberant at the sides, the four black spots small; punctures fine 

 and sparse, the median tumescent region convex, not abruptly 

 elevated; elytra coarsely, not densely punctate, gradually rather 

 finely so apically; posterior discal spot shading off almost imper- 

 ceptibly behind. Length (9) 7-2 mm.; width 2.4 mm. New 

 Mexico quinquemaculatus Hald. 



Antennae black, strongly annulate with cinereous bands, each formed 

 of a narrow band at the apex of one joint and another at the base 

 of the succeeding joint 10 



10 Cinereous vestiture of the upper surface not at all dense and scarcely 

 at all modifying the bright red color of the elytra. Body oblong, 

 convex, shining, bright red, having many long erect black hairs, 

 the under surface clothed densely with cinereous-blue vestiture, the 

 legs all intensely black; head moderately punctate; antennae black 

 throughout, the long erect hairs beneath moderately numerous, the 

 first three joints bristling with longer blackish and more decumbent 

 cinereous hairs; prothorax transverse, with large rounded lateral 

 prominences, the spots moderate, the two anterior smaller than 

 the posterior; punctures fine and sparse, coarser and closer on the 

 narrow elongate and feebly convex umbo, which is very abruptly 

 elevated; elytra coarsely, rather sparsely punctate, very finely 

 so apically, the spots moderate, unmodified, the apices not darker. 

 Length (cf ) 10.0 mm.; width 3.55 mm. Mexico (Colonia Garcia, 



Chihuahua), C. H. T. Townsend *nigripes n. sp. 



Cinereous vestiture above extremely dense, giving a strongly pruinose or 



