• APPENDIX C. — INSECTS. 375 



Melolontha decemlineata, Say. 

 Valley of the Great Salt Lake. 



Fort Gates. 



Santa F^. 



Pelidnota tripunctata. 



Areoda lanigera. 



Aphodius strigatus, Say, wMcli is common in the United 

 States, occurs in Western Texas and as far south as Jalapa, in 

 Mexico. 



Hydrochus foveatus, Hald. 



Silvery-gray, varied with curious reflexions. Head coarsely and 

 densely punctate ; the largest punctures between the eyes ; palpi 

 flavous, prothorax nearly quadrangular, widest before, produced 

 posteriorly into an obtuse angle; surface punctate with three 

 fovege across the middle, the central forming a triangle with two 

 others in contact with it posteriorly. Elytra each with ten rows 

 of deep dilated punctures. Feet flavous, varied with brown; 

 length less than two lines. Fort Gates, Texas. Allied to H. 

 seabratus of Mulsant, 1844. Ann. Sci. Phys. Nat. Lyon, vol. vii. 

 p. 373. IT. gibbosus, Melsheimer. 



Staphylinus villosus, Crav. 



Mr. Kern brought a specimen of the species, which is common 

 in the United States, and is found in Mexico and Cuba. 



Philonthus comptus, Hald. 



Allied to P. ceneus and P. Jiarrisii. Polished black. Head 

 rather narrower than the prothorax, with foveae in a transverse 

 X line, the external one orbital and placed before the middle of the 

 eye ; the next midway between this and the medial one, which is 

 more shallow than the others, and in advance of them. There 

 are three additional orbital foveae posterior to the first, and several 

 upon the posterior angles, which are strongly and sparsely punc- 

 tate. Mandibles strong and incurved, with a stout tooth near the 

 base, external margin with a groove for about half its length. 

 Pronotum with four distant punctures arranged longitudinally 



