AWraiRICAN COLEOPTERA. 55 



TYPOCERrS Lee. 



T. balteatus n. sp. — Head and thorax black. Thorax coarsely and densely 

 punctured, disc very convex, sparsely pubescent, apex constricted, base deeply 

 impressed, both with fine golden pubescence, sides feebly arcuate except in 

 front. Elytra gradually attenuate to apex which is obliquely truncate, the 

 angles not acute, sparsely punctured and pubescent, surface shining, bright 

 yellow with three narrow black bands interrupted at the suture. Body beneath 

 piceous, sparsely punctured and pubescent. Length .44 inch; 11 mm. 



Male. — Antennte as long as three-fourths of the bodj', black, externally 

 subserrate, eleventh joint appendiculate, joints 6 — 11 with elongate flattened 

 poriferous spaces occupying nearly the entire length of the joint, the last Joint 

 with a space on appendix also. Legs bright yellow, tarsi piceous, posterior 

 tibiae and tarsi tipped with piceous. 



Female. — Antennae not longer than half the body, external joints stouter, 

 eleventh not appendiculate, joints 1 — 5 bright yellow, 6 — 11 black and with 

 small poriferous spaces at the base of each joint, the eleventh with two without 

 trace of appendicular joint. Legs and tarsi yellow. 



This species luay be known by the bright yellow elytra with the 

 three narrow black bands and the surface very sparsely punctured. 

 It should be placed near (jnmnicontis Lee. 



Occurs in Colorado (Morrison), Arizona (Fuller). 



NOSERVS Lee. 

 N. emarginatiis n. sp. — Semicylindrical, moderately elongate, opaque, 

 surface with the usual dark brown indument. Head deeply concave, the supra- 

 antennal margin strongly elevated. Thorax oval, longer than wide, gradually 

 arcuately narrowed to base, the latter broadly lobed at middle, anterior angles 

 obtusely prolonged, disc elevated at middle and with two slightly elevated 

 ridges which are approximated at middle, divergent slightly at either end, each 

 terminating in front in a tubercle more prominent in front than the rest of 

 the margin; on each side of these ridges a shorter sigmoid elevation. Elytra 

 oblong, semicylindrical, base emarginate, humeri obtusely rounded, disc with 

 tfvo rows of small tubercles, velvety at their summits, the inner row longer 

 terminating in a moderately prominent tubercle, near the tip rather suddenly 

 declivous, tip slightly prolonged and emarginate at the suture. Body beneath 

 brownish opaque. Second and third segments of abdomen concave at middle, 

 fourth impressed posteriorly, fifth with a reniform impression. Legs sparsely 

 granular and with short setae. Antennse perfoliate, the last joint (which is com- 

 posed of the connate tenth and eleventh), truncate at tip and placed obliquely 

 on the ninth. Length .62 inch; 16 mm. 



The antennal aroove which is very feebly defined in N. plicatus is 

 even less distinct here. All the tubercles and ridges of the surface have 

 short black setae which might readily escape notice. The eiuargination 

 of the tip of the elytra is unique among our Nosodermoids, there is 

 however a species in Cuba similarly marked (N. echinatum ?). 



One specimen collected near San Antonio, Texas, by Mr. H. A. 

 Brous. 



