382 G. R. CROTCH, M. A. 



HYPERASPIDIUS, g, n. (Typo trimaculatus.) 

 Characters of Hyperaspis, but distinct by the epipleurae of the 

 elytra not being foveolate for the femora. 



H. trimaculata, (Linn.) S. N. Ed. xii., 592, 45; vittigera, Lee. Proc. 

 Phil, vi., 133, 2. — Oblong, beneath piceous; above yellow, thorax black with 

 he sides yellow; elytra yellow with the suture and a dorsal vitta black 

 (neither of these reach the base or apex), punctuation variable. L. -8 — -13 

 inch. 



% , head and thorax yellow (the latter with the base black). 



Mexico, Kansas, Dacota. 



If . arcuata, (Lee.) 1. c. n. 3.— Allied to H. trimaculata, but elytra entirely 

 black, with a narrow pale margin along the base and down as far as the mid- 

 dle. L. -8 inch. 



% , head in front and anterior margin of thorax irregularly yellow. 



California. (Leconte, Horn.) 



H . militaris, (Lee.) 1. c. n. 1.— Also allied to S. trimaculata ; elytra yel- 

 low; suture entirely black, and a black dash on the callus; thorax with the 

 sides broadly yellow. L. "10 inch. 



% , head and thorax yellow. 



South Carolina, Florida. 



CEPHALOSCYMJfUS, g. n. 



Distinct by the very narrow transverse thorax, base not margined 

 front angles produced, porrected, head large, vertical, eyes large, oval, 

 rather finely granulated, antennae excessively short, apparently 11- 

 jointed, two basal joints thickened, club oval, acuminate; maxillary 

 palpi sub-securiform, rather pointed; prosternum broad, sub-quadrate 

 cavities open behind, meso-sternum broad; epipleurae of elytra flat 

 cuminate at two-thirds; meta-sternum not margined in front, meta- 

 coxal line complete, semicircular, extending about one-half the length 

 of the segment. 



C. Zimmermaiini, sp. n. — Broadly ovate, not convex, dark green, 

 slightly shining, clothed with a short sub-erect sparse whitish pubescence; 

 head and thorax rather closely distinctly punctate, elytra more sparingly and 

 more coarsely punctate; undersurface smooth. L. # 6 — - 7 inch. 



I have named this species in honor of that acute observer, the late 

 Dr. Zimmermann, in whose collection it was already distinguished as a 

 new genus. Specimens exist also in the cabinets of Dr. Leconte and 

 Mr. Ulke. 



