1873.] 4bi Hum. 



deep sulcus, anteriorly and laterally with deep broad irregular sulci, on 

 each side of median sulci a smooth space. Other characters as in the 

 preceding species. Length .22 inch ; 5.5 mm. 



The sides of the thorax beneath are sculptured with deep broad, short 

 grooves, while the preceding species has deep foveate punctures. 



One specimen, Georgia. 



C. collar-is n. sp. 



Brownish with aeneous lustre. Rostrum sparsely punctured, sides at 

 base feebly sulcate. Head sparsely punctured, eyes moderately sepa- 

 rated, a slight impression between them. Thorax one-third wider at 

 base than long, sides slightly sinuate in front, thence arcuate to base, 

 surface deeply longitudinally strigose, anteriorly slightly punctured. 

 Scutellum small, smooth, aeneous. Elytra ferruginous with aeneous 

 lustre, obsoletely maculate with brownish, sculptured as in the preceding 

 species. Body beneath and legs as in the preceding species. Length 

 .22 inch ; 5.5 mm. 



One specimen, Texas, differs in color and thoracic sculpture from any 

 of our species. 



Axalcis Schonh. 



In all the species which I have examined, I have been unable to detect 

 any variation in the number of the dorsal abdominal segments between 

 the specimens which I have superficially considered as opposite sexes. 



The species divide themselves naturally into two distinct forms, the 

 one opaque and more or less clothed with scales forming bands of vari- 

 able width, the other shining, aeneous, and without any surface vesture 

 The following table shows their further relationship. 



Body above black, varying to rufous, surface usually 

 opaque with scale-like vestiture, abdomen punctured. 

 Thorax coarsely foveolato-punctate, surface irregular. 

 Elytra at base with large pentagonal punctures, at apex 



the striae and punctures obsolete morbillosus. 



Elytra at base with large round punctures arranged in 

 very regular rows, striae and punctures at apex 



distinct foveolatus. 



Thorax with coarse punctures evenly distributed variegatus. 



Thorax very densely punctured fragariic. 



Body above aeneous, shining, without vestiture, thorax 

 indistinctly punctured, abdomen smooth aereus. 



A. morbillosus Lee. Pacif. R. R. Rep. App. 1, p. 58. 



Oblong, black, opaque. Rostrum coarsely and densely punctured, at 

 base a slight fovea, surface with distant white scales more dense in the 



