AMERICAN COLEOPTEBA. IGl 



eyes, and by the posterior transverse impression of the prothorax 

 almost obliterated. 



The habits of this insect are peculiar ; it was found only in the 

 twilight, or ni<j;ht, near the camp fires. The third joint of the 

 maxillary palpi is scarcely shorter than the fourth joint, agreeing in 

 this respect with G. severa. 



C magH.— Sooty black, tinged with greenish, without lustre. Head with- 

 out striae, not concave between the eyes which are large and prominent. Pro- 

 thorax not longer than wide, moderately narrowed behind, sides rounded and 

 sinuate, transverse impressions well defined, dorsal line very fine, disc convex, 

 sparsely pubescent, not rugose. Elytra elongate oval, humeri not prominent, 

 tips not serrate, broadly and separately rounded, suture a little retracted in 9 > 

 but the spine is wanting in both sexes; sparsely and finely punctured, fovefe of 

 subsutural row well marked. Beneath opaque black, slightly pubescent, tibise 

 and tarsi brownish. Labrum with three distinct teeth, an I strongly sinuate 

 each side. Palpi pale with the last joint dark. Length 12 mm.; .5 inch. 



Three specimens from Lake Ponchartrain have been kindly com- 

 municated by Mr. F. G. Schaupp. 



This species is closely related to C. Pilntei but differs by much 

 narrower form, different color, stronger punctuation, and different apex 

 of the elytra, and by the prothorax being more narrowed behind, and 

 by the eyes being larger and prominent. 



The labrum, as in C. Pilatei is black in the 9 j ^nd black with a 

 large white spot in the S . 



Found in woods, near Lake Ponchartrain, Louisiana. 



C. hirtilabris.— Slender, bronzed brown, body beneath, prothorax and 

 head clothed with fine prostrate white hair, labrum white clothed with similar 

 hair, with a small indistinct tooth at the middle. Elytra with a broad white 

 border, feebly dilated in the region of the humeral lunule, middle band broad, 

 marked with numerous dark points and lines, producing a ramose appf^araiice, 

 immediately behind which is a dilatation representing the apical lunule, there 

 is also a small basal spot; the dark spaces are strongly punctured and the sutu- 

 ral spine is obsolete. Palpi pale, with the last joint dark. Legs very long and 

 slender, hind trochanters dark red, claws large. Length 9.3 mm. ; .(32 inch. 



%. — Elytra obliquely narrowed near the tip, then suddenly rounded and sub- 

 truncate, suture not retracted; ventral segments uniformly pubescent. 



9. — Elytra obliquely sinuate near the tip, then suddenly rounded; suture 

 slightly retracted; anterior angle of the sinuosity obtuse not prominent; last 

 ventral segment glabrous. 



Florida, Mr. F. G. Schaupp. Of the same form as C. gratiosa, but 

 with finer pubescence and less dilated white markings, though the basal 

 spot is frequently connected with the margin. It is remarkably dis- 

 tinct from all the other species known to me by the labrum being 

 clothed with fine prostrate white hair, like the head and prothorax. 



TRANS. AMER. ENT. SOC. (21) SEPTEMBER. 1875. 



