DESCRIPTIONS OF NEW SPECIES. 27 



SCYDMAENUS Latk. 



86. S. pyramidalis. Elongatus, rufo-piceus, tenuiter pubescens, 

 thorace lougiusculo, antrorsuin angustato lateribus vix rotumlat is, ante 

 basin linea transversa impresso, elytris basi unifoveatis, obsolete punc:- 

 tulatis ; antennis sensim fortius clavatis, articulo Svo praecedente sesqui 

 majore. Long. *03. 



Mobile, Alabama ; Col. Motscliulsky. This small species be- 

 longs to the group having the last four joints of the antennae 

 enlarged, and the thorax forming a very obtuse angle with the 

 elytra, but is much smaller than S. obscurellus or 8. clavatus, 

 and differs moreover by the 8th joint of the antenna? being inter- 

 mediate in size between the 1th and 9th, instead of being nearly 

 equal to the 9th. 



ADRAXES Lec. 



87. A. coecus Lec. 



A male of this very rare species, found in Illinois, and sent me 

 by Dr. C. A. Helmuth, differs from the female found by me in 

 Georgia, by being much smaller and of a paler color ; the middle 

 thighs are armed beneath near the base with a long acute spine, 

 and the middle tibiae are broadly sinuous at the inner margin. 



CIRCOCERUS Motsch. 



88. C. l>atrisoides. Rufo-castaneus, flavo-pubescens, fronte canali- 

 culata et transversim irnpressa, vertice foveis duabus parvis impresso, 

 thorace ovato convexo, obsolete punctulato, ante basin fovea parva im- 

 presso lineaque transversa arcuata parum distincta, elytris subtiliter 

 punctatis, basi foveatis et breviter striatis, stria suturali postice obsoleta, 

 abdomine subtiliter punctato. Long. "07. 



New Orleans ; Col. Motscliulsky. The shape of this insect is 

 that of an elongated Bryaxis ; the antenna? are nearly half aa 

 long as the body ; the first and second joints are thicker than the 

 following, the joints 3-8 are nearly equal and scarcely as long 

 as their width, the 9th and 10th are gradually a little wider, but 

 scarcely longer, the 11th is very large, oval, somewhat compressed, 

 and equal in length to one-half of the preceding portion of the 

 antenna?; the penultimate joint of the maxillary palpi ia very 

 small, the last joint is very long and cylindrical. The abdomen 

 is moderately margined, and the claws of the tarsi are equal. 



