374 APPENDIX C. — INSECTS. 



Stethoxus triangularis, Say. 

 At Tampico. 



Melops constrictus. 

 Chljenius sericeus. 



" VICINUS. 



Agonum erythropum. 

 poecilus scitulus. 



Were collected by Mr. Kern. 



Trochalus explanatus, Le Conte. 

 Or a closely allied species, was brought by Captain Stansbury. 



Cotalpa granicollis, Hald. 



Pl. IX. Fig. 11. 



Hirsute, dark green, elytra reddish castaneous, feet black. 

 Head, pronotum, scutel, and pygidium, green, and densely and 

 confluently punctured. Elytra each with four indistinct impressed 

 striae; surface irregular punctured, punctures confluent toward 

 the sutures. Under parts, including the femora, green, and 

 densely punctate; tibiae and tarsi, black. Length, eight lines. 

 The body, above and below, with the elytra and feet, are irregu- 

 larly hirsute, with whitish hair^. Valley of the Great Salt Lake. 



Euphoria cernii, Hald. 



Pl. IX. Fig. 10. 



Dark brown elytra, varied with pale flavous. Head and pro- 

 notum densely and coarsely punctured; antennae, palpi, and feet 

 reddish-brown. Pronotum margined laterally and posteriorly 

 with a narrow band of flavous ; scutel black, with elongated shal- 

 low punctures, mostly toward the margin. Elytra each with a 

 wide sutural and medial groove, irregularly maculated with dark 

 brown and flavous in nearly equal proportions, the lateral and 

 terminal with three sub-sutural spots; surface slightly punctate 

 with longitudinal striae near the suture,. and fine transverse rugo- 

 sities laterally. Pygidium faintly rugulose, pectus blackish. 

 Length, five lines. Collected by Mr. Kern, after whom it is 

 named. 



