AMERICAN COLEOPTERA. 181 



Differs from abdcminalis only the strong and deep punctures and 

 fovese of the elytra ; the surface is thereby rendered very rough and 

 scabrous. 



PoLiTULA group. 



Abdomen red; palpi % pale at base; head not hairy, finely striate between and 

 in front of the eyes, granulate behind ; thorax subcyliudrical, granu- 

 late, glabrous above and beneath ; elytra densely punctate, conjointly 

 rounded at apex ; beneath not at all hairy politula. 



C. politula Lee, 1875, Trans. Am. Ent. Soc, v, 159; Schaupp. I.e., p. 108, pi. 

 4, fig. 120. 

 Length 10-12 mn).=.40-.48 inch. 



Habitat. — Texas. My specimens are from Cypress Mills. Sep- 

 tember to November. 



Black, somewhat shining, slightly tinged with blue and bronze on 

 head and thorax, beneath and legs blue, abdomen red ; elytral mark- 

 ings consist i»f an apical lunule only. Head glabrous, finely striate 

 between and in front of the eyes, granulate behind ; labrum irregu- 

 larly rounded in front, toothless ; thorax not longer than wide, sides 

 rounded, impressions moderate, surface granulate; elytra convex, 

 oblong, densely punctate, a little less towards apex, tips conjointly 

 rounded, not serrulate. Beneath, there are a few hairs on the legs 

 and palpi as usual, but the body itself is not at all hairy. 



SoMMERi group. 



Abdomen red; palpi pale; head glabrous, finely coriaceous; thorax quadrate, 

 rather flat; elytra with humeral lunule, transverse middle band and 

 a large round apical dot. fulvous and very broad Sommeri. 



C. Sommeri Mann, 1837, Bull. Mosc, ii, 12; Chev. Mag. Zool., 1841, p. 7; 

 Schaupp, I. c, p. 108, pi. 4, fig. 118. 

 Length 13-14 mm. =.52-. 56 inch. 



Habitat. — Mex. Reported from the vicinity of San Diego, Cal., 

 by the late Henry Edwards. 



Dark cupreous, beneath cupreous or purplish, with the last two 

 abdominal segments rufous ; elytral markings consist of humeral 

 lunule, transver.se middle band and large round apical dot all very 

 broad and reddish in color. Head depressed between the eyes, finely 

 striato-granulate, not hairy; labrum brown, obsoletely toothed; 

 thorax quadrate, rather flat, truncate at base, finely granulate, with 

 a fringe of hair each side above ; elytra dilated at the middle, 

 rounded and serrate at apex, sericeous, very finely punctate. Be- 



TEANS. AM. ENT. SOC, XXVIII. JUNE, 1902. 



