56 JOHN L. LE OONTE, M. D. 



deprossis, lateribus s\ibito declivibus, versus suturam triiinpipssi?:, a])ice svili- 

 trnncatis, striis fortiter punctatis, interstitiis fere planis ; fernoribiis jwstieis 

 edentatis. Long. 9 mm. 



One specimen collected on the Smoky Hill river. This species dif- 

 fers from all the others in my collection by the dense pubescence of the 

 upper surface ; the body beneath is clothed as usual with silvery shoi-c 

 dense hairs. By description it resembles the European D. tommtoi^d 

 Ahrens, in many of its characters, but I have had no opportunity to 

 compare it with a specimen of that species. 



COSCINOPTERA Lac. 



C. axillaris, oljlonga.suboyliudriea, nigra. subtus densissime. supra satdeiisc 

 cinereo-T)ubescens, labro glabro; thorace confertim punetato, linea dorsali fere 

 obsoleta laevi ; elytris fortius punctatis et rugosis. macula humerali sub(iua(l- 

 rata laete rufa ornatis. Long. 4 — 5 mm. 



Abundant on the Arkansas and and Smoky Hill rivers. The 4th 

 joint of the antennje is scarcely lonj^er than the 3d, but somewhat 

 broader. 



C. subfasciata, oblongo-cylindrica, nigra nitida, subtus densis.sime, supra mi- 

 nus dense ciiiereo-pubescens, capite confertim subtiliter punetato, linea longi- 

 tudinali laevi inter oculos antice furcata; labro glabro; thorace confertim punc- 

 tate, linea dorsali fere nulla; elytris minus subtiliter punctatis, punotis hie iiidc> 

 subseriatis, macula magna basali fere ad suturam exteusa rubra, baseos dimidii' 

 interne nigro. Long. 6"5 mm. 



Two specimens. Arizona, Dr. B. J. D. Irwin, TJ. S. A. A fine species, 

 easily distinfruished by the large quadrate red spot, which occupies 

 the anterior third of the elytra, except the suture and the inner half of 

 the base, which remain black. The 4th joint of the antenn;^ is almosr 

 twice as long as the 3d, and nearly as wide as the 5th ; the 3d joint is 

 rounded, and smaller than the 2d. 



GRIBURIUS Hald. 

 G. speciosus, capite punetato, nigro, fascia angusta frontali labroque albo; 

 thorace parce punetato laete rubro, macula magna antica transversa nigra, 

 margine subapicali albo, apice summa anguste nigra; elytris irregulariter seria- 

 tim punctatis, sutura late limbo externo et apieali anguste albis; scutello et 

 pygidio albis postice nigro inarginatis; subtus pectoribus nigris, abdomine 

 albo, nigro fasciato, propectore lateribus rubris, pedibus albo nigroque vittatis. 

 Long. 6 mm. 



Mas segmento ventrali ultimo apice fovea magna circulari excavate. 

 But two specimens of this most beautiful species were found by Dr. 

 Lewis, south of the Raton Mountain. In comparison with G, lur- 

 vdtua the thorax is shorter, having nearly the same proportions as in 

 G. scufellaris, but more rounded on the sides ; the punctures of tlie 

 head and thorax are less distant than in either of those species, and 

 the stria; of the elytra are composed of more closely set and smaller 



