160 GEO. H. HORN, M. D. 



and deeply punctured, flanks of prothorax granular. Metasternum at sides 

 densely coarsely punctured. Abdomen coarsely but not densely punctate. Legs 

 sparsely punctate. Length .20-. 30 inch; 5-7.5 mm. (PI. 5, fig. 12.) 

 Four specimens, Texas. 



ZOI'HERIJS Lap. 



Z. granic<>Ilis n. sp. — Form moderately elongate, black, surface with slight 

 velvety aspect. Head very coarsely but sparsely punctate. Thorax oval, as wide 

 as long, sides in front slightly arcuate, posteriorly gradually coarctate, the margin 

 posteriorly coarsely crenulate, disc moderately convex with numerous tubercles 

 regularly and moderately closely placed over the entire surface, each tubercle punc- 

 tate on its posterior aspect. Elytra regularly oblong oval, not wider than the tho- 

 rax, apex tuberculate on each side, surface with numerous tubercles very regularly 

 disposed and rather closely placed, each punctate on its posterior aspect." Proster- 

 niim beneath coarsely tuberculate, the body and abdomen very coarsely not closely 

 punctate. Length .80 inch ; 20 mm. 



Diifers from all our other species by the more coarsely tuberculate 

 thorax and elytra. In all our black species the thorax is sparsely and 

 irregularly punctate except in opacus. In the latter the punctures of 

 the thorax are muricate, but the elevations small and distant, and the 

 tubercles of the elytra are also small and distant. 



One specimen collected in the north of Lower California near the 

 boundary by Dr. E. Palmer. 



RHi:VANI>RUS Lee. 



R. snUlaeviN n. sp. — Form elongate, subdepressed, black with slight velvety 

 aspect, beneath more shining. Head sparsely punctate, punctures much finer at 

 middle, the sides behind the eyes more coarsely punctate, finely granulate opaque, 

 under side triangularly wrinkled. Thorax one-fifth wider than long, base wider 

 than apex, sides arcuate, broadest at middle, slightly narrower and feebly sinuate 

 behind, hind angles sharply rectangular, lateral margin entire, disc moderately 

 convex, very sparsely finely punctulate, a vague ante-basal transverse impression. 

 Elytra wider at base than the thorax and more than three times as long, humeri 

 distinct, sides feebly arcuate, widest at posterior third, surface with nearly obsolete 

 striae of fine punctures, the intervals flat with extremely minute punctures 

 sparsely placed. Prothorax beneath sparsely punctate near the front angles. 

 Metathorax slightly wrinkled and minutely punctate. Abdomen more distinctly 

 sparsely punctate. Body winged. Length .69 inch ; 17.5 mm. 



This species bears a notable resemblance to Kyctohntes mihnitens Horn, 

 but is a little broader. The clypeal emargination is deep, nearly semi- 

 circular. The other two species known to me have elongate oval elytra, 

 the humeri obliterated and the wings wanting. 



Two specimens, Arizona. 



