80 [May, 



narrowed posteriorly, the lateral margin is narrower, and the elytra of the female 

 are not toothed near the apex : the posterior angles of the thorax are slightly 

 prominent, and almost rectangular. 



Phileurus cribrosus, ater, nitidus, convexus, clypeo marginato apice acute 

 elevato, ante oculos transversim carinato, thorace transverso, parcius punctato, 

 pone medium canalieulato, elytris punctis grossis seriatim positis. Long. -52. 



Laredo to Ringgold Barracks; Mr. Weise. This curious little species seems 

 to have most affinity with those of Burmeisters division {& (2)) ;* the anterior 

 tibia? have three large external teeth, the mandibles are without any prominent 

 external tooth, and the elytra without any short series of punctures near the 

 scutellum. It differs, however, from all those described by Burmeister in hav- 

 ing in place of the two usual frontal tubercles a transverse ridge, scarcely emar- 

 ginate at the middle. The prosternal prominence is small, acute and densely 

 pilose. 



At Vallecitas, in California, I found the elytra and thorax of a species which 

 seems on comparison very similar to the specimen found by Mr. Weise, but be- 

 longs to a section of the genus having a short stria at the base of the elytra, be- 

 tween the first and second stria: the punctures of the elytra are more closely 

 set, so as to form striae ; the thorax is more densely punctured anteriorly, and 

 almost smooth posteriorly : the dorsal channel extends almost to the apex, but is 

 not deep, and finally the anterior tibiae above the three long teeth have an indis- 

 tinct prominence representing a fourth tooth. The length was about '65 of an 

 inch. The species may be called P. i 1 1 a t u s. 



Athyreus ser r a tu s, ferrugineus, nitidus, clypeo antice truncato elevato, 

 vertice transversim elevato, thorace lateribus rotundatis serrulatis, antice valde 

 declivi, et medio late impresso, carinis utrinque duabus obliquis munito, apice 

 valde marginato, elytris tenuiter striato-punctatis, antennis flavis. Long. -54. 



One specimen, Laredo to Ringgold Barracks. The head is finely scabrous ; 

 the clypeus is truncate and perpendicular at the apex, which forms a subtrian- 

 gular facet; each side above the eye commences an elevated line, which runs for- 

 ward to the angle of the lateral emargination of the clypeus, then in a curve 

 runs to the apex, where it unites with the elevated edge of the triangular facet 

 above mentioned : the vertical horn is very short and transverse. The thorax 

 is sparsely punctulate, with a few large punctures along the middle, and in the 

 concavities: each side at the middle is a broad transverse sulcus, limited ante- 

 riorly by an elevated line ; anterior to this the disc is very declivous, with the 

 anterior margin strongly elevated; at the middle of this declivous face is a shal- 

 low impression, and again each side a deeper excavation, between which and 

 the first mentioned elevated line is a strong somewhat oblique elevated ridge : 

 the sides are regularly rounded and serrate, the anterior angles are acute. The 

 striae of the elytra are fine and moderately punctured ; the interstices are very 

 sparsely punctulate. The under surface and the legs are furnished with long 

 yellow hairs. 



Although this is the first authentic appearance of the genus Athyreus in our 

 fauna, I find on comparison that Bolbocerus fossatus Hald. (Proc. Acad. 6, 

 362,) and Scarabaeus ferrugineus Beauv. (Ins. 90, tab. 2b, fig. 3,) also be- 

 long here; the middle coxa? in both of those species are separated, and the meso- 

 sternum is somewhat elevated, acutely margined at the sides and declivous ante- 

 riorly. In his beautiful monograph of Athyreus, Klug suggests that the species 

 of Beauvois just mentioned belongs to this genus, although in the absence of 

 specimens for examination, this opinion could not be confirmed. 



Anomala luteipennis, ovata nigra virescens, nitida, supra glabra, thorace 

 lateribus rotundato, sat dense punctato, capite densius rugoso, postice punctato, 

 elytris luteis, striis punctatis sutura epipleurisque anguste nigricantibus, pygidio 

 parcius sat grosse punctato antennis testaceis. Long. -47 52. 



Laredo to Ringgold Barracks, Mr. Sehott. One specimen has a small black 



*Lamellicornia, 3, 151. 



