162 CHARLES W. LENG. 



The tooth of the right mandible ( ^ ) is smaller, approaching 

 thereby the South American nivea, the size is even less than in 

 media, the elytra are narrower in both sexes, the thorax is longer 

 and less rounded on the sides, the bronze markings of the elytra 

 are much broader, and the posterior one is frequently lobed and 

 connected with the suture. 



Hamata group. 



Thorax flattened, slightly rounded at sides, neaily quadrate; right mandible % 



toothed near the tip; elytra rounded at the sides, with the suture of 



9 retracted, apices separately rounded, serrulate; elytral niarkiugs 



include a supplementary basal dot. 



Elytra J not deflexed at tip ; mandilnilar tooth of % obtuse, feeble, •hamata. 



• Elytra 9 deflexed at tip; mandibular tooth of % moderately long, acute. 



marginata. 



C. hamata Brulle, Arch. Mus., 1839, i, p. 132, pi. 8, fig. 9; Schaupp. I. c, p. 99, 

 pi. 4, fig. 79; lacerata Chaud. Bull. Mosc, 1854, i, 115; Lee. Trans. Am. 

 Phil., xi, p. 48, fig. 35. 

 Length 11-12 mm.=.44-.48 inch. 



Habited. — Fla., Miss., La., Tex., on the shores of the Gulf of 

 Mexico, June and August. 



Brown or green bronze, beneath green-bronze, very hairy at the 

 sides; elytral markings consisting of basal dot, humeral lunule, 

 middle band refracted, with descending part confused, apical lunule 

 and white wide margin connecting all the other marks ; head clothed 

 with short decumbent hair nearly to the occiput, striate near the 

 eyes, granulate behind; labrum short, obsoletely unidentate ; right 

 mandible ( S ) with a feeble obtuse tooth beneath ; thorax quadrate 

 or very nearly so, feebly rounded at the sides, flattened, granulate, 

 clothed with short decumbent hair through which the sculpture is 

 seen ; elytra slightly rounded % , more strongly 9 , uniformly punc- 

 tate, except in the white markings, serrulate at apex, the sutural 

 margins very feebly drawn apart near apex in <? , but very strongly 

 in the 9 , in which sex the apices are also separately rounded. Be- 

 neath very hairy ; the whole body, except at middle, and even the 

 whole side of the head below the eye being thickly clothed with 

 white decumbent hair. Legs very long, hind trochanters red. 



V. margiiiata Fab., Syst. Ent.. p. 226; Say, Trans. Am. Phil. Soc, new ser., i, 

 p. 417, pi. 13. fig. 6; Lee, I. c, p. 48, fig. 36; Schaupp, I.e., p. 99, pi. 4, 

 fig. 80; i-ariegata Dej., Spec, i, 84. 

 Length 11-14 mm.=.44-.56 inch. 



