222 [December, 



tili elevato aureo, thorace scutelloque limbo totoangusto aureo punctulatis, ely- 

 tris parce punctulatis margine laterali vittisque quatuor irnpressis splendidc 

 aureis nitidissimis, interstitiis 2 et 3io foveis inauratis confluentibus vittam par- 

 vam simulaatibus oraatis, subtus aureo-viridis, commissuris omnibus aureis, 

 mesosterno subito declivi, vix porrecto. Long. -78 -92. 



Copper mines and at Camp No. 6. This most splendid species belongs to di- 

 vision II. of Burmeister, (Lamell. 2, 420), but is very different from any described 

 by him. 



Chalepus obsoletus, piceo-nigra nitida, clypeo punctato, emarginato, 

 thorace subtilissime reticulata, parce punctato, apice coreo marginato, elytris 

 striis solitishaud impressis subtiliterpunctatis, interstitiis alternis parce subtiliter 

 punctatis. Long. -82, lat. -43. 



One specimen, " San Diego trip." Larger and proportionally narrower than 

 C. trachypygus ; the striae of the elytra are merely rows of fine punctures. The 

 pygidium is polished, sparsely and somewhat finely punctured, with a strongly 

 impressed line running around its posterior margin. 



Polyphylla cavifrons, fusco-ferruginea pube squamulosa pallide fusca 

 parce vestita, thorace lateribus sulco dorsali plagaque utrinque basali densius 

 pubescente, sat dense minus subtiliter punctato, clypeo (maris) lateribus oblique 

 divergentibus, antice truncato valde concavo, elytris sutura vittisque angustis 

 utrinque tribus densius squamulosis, subtus densius squamulosa, pectoribus lana 

 longissima tectis, tibiis anticis fortiter 3-dentatis. Long. -88 1-10. 



One male found on the San Diego trip and another mutilated one procured by 

 Mr. Schott on the Rio Grande. Similar in form and size to P. variolosa Har- 

 ris, but differs in the clypeus being much more concave, and wider at tip than 

 at base. The lines on the elytra are only moderately distinct, and the short hu- 

 meral vitta seen in P. 10-lineata is entirely wanting. From all other American 

 species known, it differs in having the anterior tibiae of the male (and therefore 

 also of the female) strongly three toothed, thus belonging to Erichson's division 

 B. (Ins. Deutschl. 659) with the European P. h o 1 o 1 e u c a Er. 



Copris mcecha, nigra, clypeo punctato apice subemarginato, (maris cornu 

 elongato cylindrico armato) thorace punctato, disci medio laevi, canaliculato 

 (maris antice retuso emarginato et abrupte declivi, lateribus cornu compresso 

 valde elevato armato, linea solita elevata submarginali, impressioneque trans- 

 versa laterali notato) elytri3 striis sat profundis subtilius crenatis, interstitiis 

 laevibus. Long. *7T. 



One male from Camp 14. Allied to C. anaglyptica, but differs by the much 

 more strongly developed horns, the less dense punctuation of the thorax, and 

 the deeper elytral striae. From a Central American species known in collections 

 as C. ChevrolatiijDej., it differs by having all the hollows of the thorax strongly 

 punctured, and by the clypeus being more distinctly emarginate : it is possibly, 

 however, merely a northern variety of that species. 



Ochodaeus simplex, ovalis convexus, ferrugineus, breviter fulvo-setosus, 

 punctatus, clypeo haud carinato, transversim leviter sulcato, apice subtruncato, 

 elytris confertim punctatis leviter striatis interstitiis haud elevatis. Long. 25. 



One specimen from the Copper mines. Differs from 0. musculus by the 

 absence of the transverse carina of the vertex, and by the anterior margin of the 

 clypeus not being elevated : the teeth of the mandibles cannot be seen. 



Ochodaeus striatus, oblongo-ovalis, convexus ferrugineus, breviter fulvo- 

 setosus, punctatus, clypeo antice subtruncato subtiliter marginato, vertice ele- 

 vato vix transversim carinato, thorace postice canaliculato, elytris parcius punc- 

 tatis striis crenulatis, interstitiis paulo convexis. Long. -25. 



One specimen from Arispe. A little narrower than the preceding, with the 

 vertex elevated, but forming rather a transverse tubercle than a carina. The 

 striae of the elytra are moderately deep, and the intersticesare slightly convex and 

 rather sparsely punctured. 



