104 GEORGE H. HORN, M. D. 



duplicate of the above description, two in my owa calbinet have the 

 elytra more deeply striate. 



One specimen from Oregon, two from California, the latter pre- 

 sented by Messrs. Edwards and Behrens of San Francisco. 



N. pallipes, Say, Trans. Am. Phil. Soc. ii, p. 78. 



The species is so widely distributed over our country and is so well 

 known that an extended description is unnecessary. It may be known 

 by its very broad thorax with strongly rounded sides, oblique behind, 

 with angles obtuse, not rectangular. The elytra are deeply striate, the 

 striae punctured, the third having fine very distinctly impressed longer 

 punctures; interspaces convex. Antennae and legs pale rufous or 

 yellowish. Length .40 — .46 inch ; 10 — 11.5 mm. 



Distributed through a region northward from the fourtieth parallel, 

 and east of Mississippi River. 



The following are said to have been found within our limits, either 

 at the north eastern or north western extremeties of our continent. 

 N. carbonaria, Esch. Zool. Atlas, v, p. 24. Kamtschatka. In Sitkha. 

 N. nivalis, Payk. Fauna Suec. p. 119. Lapland. In Greenland, 

 Other species inhabiting the north eastern extremity of Asia may 

 also be found in Sitkha. 



The following are unknown and irrecognisable. 

 N. elias, Motsch. Bull. Mosc. 1865, iv, p. 276. 

 N. mollis, Motsch. id. p. 274. 



Both species are said to be black and resemble vioesta, and are three 

 and a fourth lines long. 



PELOPHILA, Dej. 

 The characters given at the beginning of this paper seem to warrant 

 the retaining of the genus as distinct from Ay^ria. Our species are few 

 and agree in their robust form and stout antennas, and all have the 

 hind angles of the thorax rectangular. 



P. Eschscholtzii, Mann. Ilumni. Essais Entoin. iii, p. 40; Bull. Mosc. 1843, ii, 

 p. 190. — Black with slight eeneous tinge. Head robust, frontal impressions 

 moderately deep and strongly wrinkled. Thorax one-half broader than long, 

 nearly as broad at middle as the base of the elytra; sides moderately rounded 

 in front, sinuate behind, with the basal angles rectangular; margin narrow, 

 slightly reflexed; apical transverse impression moderate and rather coarsely 

 punctured, median impression faint, basal transverse impression moderately 

 deep and sparsely punctured. Elytra oblong, slightly broader behind, sides 

 feebly rounded, striae dee]) and coarsely punctured, intervals convex, the third 

 with six or seven large deep punctures, the tifth with two in front of middle. 

 Body beneath black, legs piceous. Length .48 inch; 12 mm. 



