DESCRIPTIONS OF NEW SPECIES. 99 



of Enoplium as given by Duval and Kiesenwetter. Duval has 

 observed* that the ungues of E. 4-punctatum are acutely toothed 

 at the base, while those of the European species are simple. I 

 find that they are broadly and slightly dilated at the base in the 

 former, but can hardly be called toothed : in E. scabripennis they 

 are very feebly dilated, while in the Texan E. -notatum the 

 dilatation is scarcely perceptible. 



LEBASIELLA SPIN. 



346* L. jail til ilia. Elongata laete violacea nitida, nigro-pilosa, capita 

 thoraceque haud dense sat fortiter punctatis, hoc convexo latitudine 

 breviore, lateribus rotundatis tenuiter marginatis, elytris fere cribratim 

 punctatis ; subtus cyanea, antenuis nigris basi testaceis. Long. -20. 



One specimen, collected at Cape San Lucas, Lower California, 

 by Mr. Xantus. This species has very much the appearance of 

 a Corynetes, and is of about the same size and shape as C. 

 violaceus. 



347. L/. nigripennis. Nigra nitida, pube flava erecta vestita, capita 

 thorace antennis pedibusque laete rufo-testaceis, capite parce punctulato,' 

 thorace latitudine breviore couvexo, parce punctate, lateribus rotundatis, 

 tenuiter marginatis, elytris convexis, thorace latioribus, profunde punc- 

 tatis, punctis postice subtilioribus. Long. -12. 



One specimen, collected in York County, Pennsylvania, given 

 me by Dr. Melsheimer. 



LARICOBIirS ROSENHAUER. 



348. Ij. m"bidus. Nigro-piceus, nitidus, pilis erectis vestitus, capite 

 punctato, biirapresso, thorace latitudine breviore, lateribus marginatis, 

 medio angulatis, disco rude punctato, interstitiis punctulatis ; elytris 

 piceo-rufis, sutura nigricante, pone basin impressis, punctis quadratis 

 seriebus 9 digestis, serieque brevi juxta scutellum, interstitiis parce punc- 

 tulatis ; antennis ferrugiueis, capite thoraceque brevioribus. Long. -10. 



Found in the Smithsonian grounds, Washington; D. C., by Mr. 

 Ulke, under the bark of a coniferous tree. The antennae extend 

 as far as the lateral angle of the prothorax. This insect re- 

 sembles in form and general appearance Derodontus maculatus 

 so much that it might without examination be readily taken for 

 a dark colored variety of that species. 



* Genera des Coleopteres d'Europe, III, 200, (note). 



