AMERICAN COLEOPTERA. 283 



punctured, smoother at apex. Elytra as in morio less densely and more irregu- 

 larly punctured, surface piceous with four rufous spots, one in each angle. 

 often confluent in broad vittse. Abdomen above more sparsely punctate than 

 the elytra. Prosteruum nearly smooth. Body sparsely punctured. Last seg- 

 ment of abdomen with coarse rather sparsely placed punctures. Legs piceous. 

 Length .16 — .20 inch; 4 — 5 mm. 



The male has the last ventral emarginate, a small additional seg- 

 ment visible, the emargination bisinuate at bottom. 



Also of wide distribution, from the Middle States to Texas. 



C semitectns Say. — Elongate oval, much deyjressed, piceous, moderately 

 shining, very sparsely pubescent, elytra reddish-yellow, sides and apex nar- 

 rowly piceous. Head coarsely not densely punctate. Thorax one-half wider 

 than long, sides moderately arcuate, apex narrower than the base, the latter 

 feebly sinuate each side, surface rather coarsely not densely punctate, color 

 piceous, lateral margins and hind angles usually paler. Scutellum punctate 

 at base, apex smooth. Elytra conjointly very little wider than long, surface 

 moderately densely punctate, the punctures subseriate near the suture, con- 

 fused at sides and apex. Abdomen above more finely punctured than the 

 elytra, and more sparsely placed. Prosternum very sparsely punctate. Body 

 with coarse and moderately dense punctures. Abdomen less densely punc- 

 tured. Legs piceous. Length .12 — .18 inch; 3 — 4.5 mm. 

 The sexual characters are as in maculatus. 

 Of wide distribution in the Atlantic region. 



t\ Mnieolor Say. — Oblong oval, moderately depressed, piceous, subopaque. 

 sparsely pubescent. Head moderately densely punctured. Thorax one-third 

 wider at base than long, sides moderately arcuate, apex equal to the length, 

 base nearly squarely truncate, surface densely and moderately finely punc- 

 tured. Scutellum densely punctured. Elytra conjointly a little wider than 

 long, densely punctulate, a little more finely than the thorax. Abdomen more 

 finely and sparsely punctured than the elytra. Prosternum very sparsely punc- 

 tate. Body coarsely punctured. Abdomen sparsely punctulate, more densely 

 on the last segment. Legs rufo-piceous. Length .16 — .18 inch; 4 — 4.5 mm. 



The sexual characters are as in morio. 



This species is remarkably uniform in color, the upper surface 

 being piceous black, the under surface somewhat paler. 



Widely distributed in the Atlantic region. 



C. truncatiis Eand. — Oval, slightly oblong, depressed, pale rufo-piceou<, 

 sparsely pubescent. Head coarsely and moderately deeply punctured. Thorax 

 nearly twice as wide as long, narrowed in front, apex equal to the length, 

 sides moderately arcuate, base very feebly sinuate each side, hind angles 

 rounded, disc feebly convex, surface moderately densely punctate. Scutellum 

 moderately densely punctured. Elytra conjointly a little wider than louo-, 

 apices conjointly emarginato-truncate, surface moderately densely and irregu- 

 larly punctate. Abdomen more sparsely punctured than the elytra. Pro- 

 'sternum nearly smooth. Body coarsely and moderately densely punctate. 

 Abdomen sparsely, the last segment moderately densely punctate. Legs rufo- 

 testaceous. Length .08 — .10 inch; 2 — 2.5 mm. 



