382 PROCEEDINGS OF THE ACADEMY OP 



those of 9> but not thickened as in G. splendid us and its allies; the 

 upper surface is opaque and very densely granulated ; the second joint of the 

 antennal club is normal, that is, not received in the first. If a name for this 

 group is considered desirable, it may be called Mycotrupes. 



G. retusus, nigro-seneus opacus, confertissime granulatus, fronte cornu 

 brevi vel tuberculo armato, thorace antice fortius angustato, lateribus antice 

 obliquis, postice incurvatis, margine laterali rellexo, basi utrinque sinuata, 

 angulis posticis retrorsum paulo productis, disco convexo, prope basin fere 

 retuso ; elytris fortiter marginatis, baud striatis, thorace vix longioribus. 

 Long. 14*5 17 mm. 



From North Carolina to Louisiana ; rare. The sides of the thorax are 

 curved inwards for the hinder third of their length ; they converge obliquely 

 forwards from the broadest part, which is behind the middle. 



CYCLOCEPHALA Latr. 



C. manca, supra fusca, nitida glabra, thoracis lateribus, scutello stri- 

 gisque elytrorum utrinque duabus abbreviatis pallidis ; clypeo parabolico, 

 anguste marginato, antennis 9-articulatis. Long. 19*5 mm. ; lat. 9*5 mm. 



Mas tarsis anticis incrassatis, ungue interno majore, crassiore, apice fisso, 

 antennarum clava haud elongata. 



One male, Arizona, Dr. Coues, U. S. A. This species has an elongate form, 

 being somewhat similar in size and form to Chalepus trachypygus. The color 

 above is dark brown, the sides of the thorax and two short vittse on each elytron 

 are pale yellow ; the scutellum is pale yellow, margined behind with brown ; 

 the head is moderately punctured, the clypeus parabolic and very narrowly 

 margined ; the palpi and antenna? are brown, the latter have but nine joints, 

 , the sixth being thicker but not longer than the third ; the club is a little 

 longer than the joints 2, 7 together, but does not present the elongate form 

 seen in the males of our other species ; the thorax is twice as wide as long, 

 gradually narrowed in front, rounded on the sides, finely and sparsely punc- 

 tured, sides pale, with a large brown cloud connected with the ground color of 

 the disc ; elytra sparsely punctured, punctures finer towards the tip ; a faint 

 trace of a discoidal elevated stripe may be seen, outside of which are two 

 parallel pale yellow vittse occupying the middle third of the length ; pygidium 

 and pectus testaceous, hairy ; abdomen brown ; the last segment and hind 

 margin of penultimate yellow ; feet testaceous ; trochanters, knees, margin 

 of tibise and tarsi brown. 



LIGYRUS Burm. 



L. rugiceps Lee. Proe. Acad. Nat. Sc. Phila., 1856, p. 21. For excel- 

 lent specimens of this species, found in Louisiana, lam indebted to Mr. Ulke. 

 The thorax is comparatively larger than in L. relict us. with the sides 

 more rounded in front, and nearly parallel behind ; the punctures of the 

 thorax and of the elytral rows are larger, shallower and more umbrlicated 

 than in L. relict u s, and those of the internals smaller ; the color is duller 

 black. The difference in size is considerable, the present species being but 

 13*5 mm. long., while L. relict us is from 18 22 mm. I observe no 

 sexual differences in the specimens before me. This species has been acci- 

 dentally omitted in the List. 



STRATEGUS Hope. 



S. cessus, elongato-ovalis, supra nigro-piceus, nitidus, capite confertim 

 punctato, fronte transversim carinata, clypeo triangulari apice rotundato, tho- 

 race ovate ad medium circulariter excavato, pone apicem transversim breviter 

 cornuto (r^) vel tuberculato 9 ! corpore ferrugineo, tibiarum margine tar- 

 sisque obscuris, mandibulis haud dentatis. Long. 31 mm. ; lat. 17 mm. 



Arizona, Dr. Coues. Two other specimens are in Mr. Ulke's collection. 



[Dec. 



