48 Mr. G. C. Champion's Revision of the Mexican 



m^. Elytra with intermixed 

 long, erect hairs, the 

 punctuation very 

 jfine and close; sur- 

 face shining, 

 c^. Legs in part testace- 

 ous, femora in- 

 fuscate. 

 d^. Legs wholly testace- 

 ous [cJ unknown] 

 n^. Elytra without erect 

 hairs, the pubescence 

 whitish, the punctu- 

 ation dense ; surface 

 duller ; legs dark 

 <®. Body plumbeous or olivace- 

 ous, wholly opaque and 

 densely, minutely scab- 

 roso -punctate above ; legs 

 dark. 

 x'^. Head narrow; elytra 

 widened posteriorly 

 [cJ unknown] . 

 y''. Head broad; elytra 

 longer and subparallel 

 [ (J unknown] . 

 b^. Elytra simply plicate laterally, red, 

 with base and subapical spot 

 black ; palpi stout .... 

 c^. Elytra sharply carinate laterally, 

 red, with base only black ; palpi 



stout 



\ Elytra convex and dilated posteriorly 

 in both sexes, metallic; palpi 

 stout. 

 d^. Body elongate. 



c*. Upper surface brilliant golden- 

 green, front of head and legs 

 testaceous : species large [^ 



unknown] 



d*. Upper surface dull, uniformly 

 brassy ; femora inf uscate : 

 species small [cJ unknown] . 



nigroaeneus, Gorh. 

 laevifrons, n. sp. 



laticoUis, Er. 



plumbeus, n. sp. 

 olivaceus, n. sp. 

 pUcatus, n. sp. 

 carinatus, Gorh. 



viridimicans, n. sp. 

 chalceus, n. sp. 



