102 G. H. HORN, M. D. 



A small slender species remarkable for the unusually coarse punctua- 

 tion of the head and thorax. 



One specimen % from Long Island, near New York (cab. LeConte). 



22. C nactum n. sp. — Slender, rufo-testaceous, shining. Antennae slen- 

 der, rufo-testaceous, as long as the head and thorax, third joint distinctly longer 

 than the second. Head oval, abruptly narrowed to a very slender neck, sides ar- 

 cuately narrowing, surface shining, very sparsely punctate. Thorax narrower 

 than the head, about one-fifth longer than wide, the median smooth space not well 

 defined, a row of very obsolete punctures along its middle, the lateral punctures 

 moderate in size, sparsely irregularly placed. Eh'tra wider than the thorax, 

 scarcely longer, depressed, the punctuation fine and dense, sutural line scarcely 

 impressed. Abdomen more coarsely, sparsely punctured. Length .20 inch ; 5 mm. 



Male. — Seventh ventral with a small, broadly triangular emargination ,• foui-th 

 ventral with two fovea at middle, side by side, near the base of the segment (PI. 

 2, fig. 18). 



Female. — Unknown. 



A small depressed species resembling a diminutive arizonense, with 

 unique sexual characters, and with the elytra less distinctly punctured 

 than any other species in our fauna. 

 One specin)cn, Arizona, my cabinet. 



33. C lepirtlini Lee. — Slender, depressed, rufo-testaceous, moderately shin- 

 ing, sparsely pubescent. Antenna; rufo-testaceous, shorter than the head and 

 thorax, third joint distinctly longer than the second. Head oval, the sides par- 

 allel for a short distance in front then areuately narrowing, the hind angles very 

 broadly rounded, eyes slightly prominent,. surface shining, punctuation relatively 

 coarse, sparsely placed. Thorax narrower than the head, about one-fourth longer 

 than wide, the sides slightly areuately narrowing in front, median smooth space 

 distinctly limited, slightly elevated behind, the punctures coarse and closely placed 

 near the smooth space more distant and irregular toward the sides. Elytra one- 

 fourth wider than the thorax and very decidedly longer, the punctuation moder- 

 ately coarse and deep, regularly but not very qjosely placed, separated from each 

 other by at least their own diameters. Abdomen moderately coarsely and rather 

 closely placed. Legs pale rufo-testaceous. Length .14-. 16 inch; 3..i-4 nmi. 



Male. — Unknown. 



Female. — Ventral segments entire. 



Of this species I have seen but the two in the cabinet of Dr. LeConte. 

 Among our species it resembles nactum alone, which is (juite differently 

 sculptured, especially on the elytra. 

 Two females, Texas. 



24. C cribratiim Lee. — Elongate, black, shining, elytra pale rufo-testa- 

 ceous with the suture at base and basal margin narrowly piceous. Antennae rufo- 

 testaceous, shorter than the head and thorax, the third joint longer than the 

 second. Head elongate oval, sides gradually narrowing behind the eyes, surface 

 shining, very sparsely punctate. Thorax somewhat narrower than the head, one- 

 fourth longer than wide, apex slightly narrower than the base, sides slightly ar- 

 cuate, median space smooth, on each side a distinct dorsal series of from 7 to 9 



