NATURAL SCIENCES OF PniLADELPHIA. 29 



Closely allied to G. crihrata^ Lac, but he does not mention the 

 red labriim, and describes the legs and antennte as red. 



2. C. aenescens, sp. n. 



Black, pubescent, above brassy, labrum bordered with yellow, 

 thorax closely punctate, medial line smooth; elytra closely and 

 evidently punctate, punctures arranged rather in rows ; tibia? pice- 

 ous. L. .18, Southern States. 



3. C. axillaris, Lee, Tr. Ent. Soc, 1868, p. 56. 



Cylindrical, narrow, brassy black, clothed with a whitish pubes- 

 cence; tliorax with the hind angles prominent, rather sparingly 

 evidently punctate, medial line hardly visible ; elytra coarsely 

 serially punctate, interstices sparsely punctate, humeral angle 

 fulvous. L. .12. Colorado (Leconte). 



4. C. mucorea (Lee), Pr. Acad., 1858, 8.3. 



Cylindrical, very densely clothed with whitish pubescence, 

 brassy; thorax rather sparingly punctate; elytra with the callus 

 red, striate punctate ; interstices transversely rugulose, the punc- 

 tures obsolete towards the apex. L. .21. California (Leconte). 



5. C. dominicana (Fab., 1801), Lac. Mon., ii. p. 515, 6. 



Black, oblong, clothed sparingly with a whitish pubescence ; 

 labrum yellow; thorax closely punctate, median line smooth; 

 elytra closel}' punctate. L. .20-.22. Southern and Western States. 

 G. franciscana, Lee, does not differ specifically. 



6. C. subfasciata, Lee, Tr. Ent. Soc, 1868, p. 56. 



Cylindrical, black, labrum black, sparsely pubescent above ; 

 thorax evidently not thickl}' punctate, median line obsolete ; hind 

 angles prominent; elytra shining, coarsely and sparingly punc- 

 tate ; humeral angles with a large quadrate red spot. L. .25-.30. 

 Arizona, Lee. 



Var. Elytra with a basal fascia fulvous. 



7. C. major, sp. n. 



Yer}^ similar to G. subfasciata, but much larger, more convex; 

 hind angles of thorax not prominent, the basal spot is large, but 

 the callus is black ; the punctuation also is a little closer. L. .42. 

 Texas. 



8. C. vittigera, Lee, Pr. Acad., 1S61, p. .357. 



Very distinct by the Clytra-like form parallel; thorax short, 



