NORTH AMERICAN COLEOPTERA. 283 



D. f^tibliueatus Chev. Plb. 5-6, figs. 2, 2a and 2b. — Size large, oval, rather 

 strongly convex ; surface opaque, finely granulate, color dark olive, punctures 

 scarcely visible, striae well defined ; lateral margins of elytra feebly sinuate, de- 

 pressions scarcely evident in % , slightly more so in 9 > apices truncate, of 9 

 slightly sinuate, sutural angles feebly rounded ; under surface black, middle and 

 posterior legs pitchy brown ; anterior tibiaj strongly sinuate, apex oblique, exte- 

 rior apical angle obtuse ; femora of male with a sharp, somewhat oblique tooth, 

 setigerous punctures (9 %,IG 9) 'leep and rather closely placed. Length 14 15 

 mm. ; breadth 8-9 mm. 



^a6.-— Arizona, southward to Nicaragua. 



On account of its peculiar color and large size this species will be 

 readily recognized. As mentioned in the introduction, this species 

 has a peculiar secondary sexual character in the female. The pe- 

 nultimate segment of the abdomen is quite strongly sinuate, giving 

 it a lobed appearance, and the ultimate segment has an evident im- 

 pression at tip. 



D. emargiiiatiis Say. Pis. 5, 6, figs. 3, 3(f and .3&. — Size moderate, rather 

 broadly oval, moderately convex ; surface black, not very shining, somewhat 

 bronzed, punctures and stripe faint; lateral margins of elytra in %, not, in 9 

 slightly sinuate at exterior apical angles, depi'essions not deep, sutural angles 

 broadly rounded ; under surface black, very shining and slightly bronzed ; mid- 

 dle and posterior legs, tip of ultimate and sides of abdominal segments testaceous : 

 anterior tibise cylindrical at basal third, then leather suddenly broadened on inner 

 margin in "^ , on outer margin in 9 < ^^d continued nearly parallel to apex ; apex 

 truncate, exterior apical angle rectangular; femora with a distinct, sharp tooth, 

 punctures (7 %. 8 9) rather deep, not closely placed. Length 10-11 mm.; 

 breadth 6-7 mm. 



Hah. — North and Middle Atlantic States; Virginia. 



The figure on the plate illustrates an irregular punctuation. 



D. caroliniis Lee. Pis. 5. 6, figs. 4, 4a and 46. — Size small, rather narrowly 

 ovate, moderately convex : surface black, sometimes bronzed, not very shining, 

 punctures and strife faint ; lateral margins of elytra not sinuate in 'J, , in 9 mod- 

 erately sinuate, impressions scarcely evident, the flattening of the margins ex- 

 tending nearly or quite to the suture, sutural angles feebly rounded, apices finely 

 serruhite; under surface black, shining, somewhat bronzed, middle and posterior 

 tibiiE and tarsi dark testaceous; femora brown ; anterior tibia", cylindrical at basal 

 third, then rather suddenly broadened on inner margin in '£ , on outer margin 

 in 9 . ini<l continued nearly parallel to apex ; apex truncate, exterior apical angle 

 acute; femora with a small tooth, frequently scarcely more than an abrupt ter- 

 mination of the ridge on underside, setigerous punctures (7 '^,8 9) i^ot deep, 

 rather closely placed. Length 9-10 ram. ; breadth 5.5 6 mm. 



Hab. — South Atlantic States ; Louisiana, Texas. 

 I cannot agree with Dr. Regimbart and others that this species 

 and emarginatas are identical. While I cannot recognize the apices 



TRANS. AM. ENT. SOC. XXII. AUGUST, 1895. • 



