232 PHYTOPHAGA.—SUPPLEMENT. 
The Mexican insect for which this new generic name is proposed has the general 
appearance of a Xanthonia, from which it differs in the thorax having a very distinct 
lateral margin and a glabrous upper surface; the prosternum also is much more 
strongly constricted at the middle than it is in Xanthonia. 
1. Thootes glabratus. 
Fulvous ; the head and thorax closely punctured ; elytra metallic blue, strongly punctate-striate. 
Var, Elytra fulvous with a more or less distinct bluish gloss on the disc, or entirely fulvous. 
Length 1-13 line. 
d. Head distinctly but not very closely punctured, fulvous; palpi flavous, the terminal joint thickened ; 
antenne two-thirds the length of the body, fulvous, the terminal joints gradually but rather strongly 
thickened, the third and fourth equal, the following joints slightly longer; thorax about one half broader 
than Jong, the sides strongly rounded, the disc with a shallow transverse depression at the middle, the 
surface strongly and closely punctured, fulvous ; scutellum small, obscure fulvous; elytra much wider at 
the base than the thorax, the shoulders prominent’ and raised, the surface dark metallic blue (the 
shoulders and apex sometimes fulvous), the punctures strong, arranged in regular but not very close rows, 
those near the apex more distantly placed; underside obscure piceous ; legs flavous or fulvous. 
Hab. Mexico, Zacualtipan in Hidalgo (Hége). 
I have taken a male specimen with blue elytra for the type; the females are 
larger, more flattened and widened posteriorly, and have much shorter and thinner 
antenne. 
In this insect the thorax is transversely sulcate on the middle of the disc, while in 
Xanthonia it is sulcate in front. 
FIDIA (p. 166). 
Fidia albovittata (p. 167). | 
To the localities given, add :—Mexico, Atoyac in Vera Cruz (H. H. Smith), Frontera 
in Tabasco (Hége), Temax in Northern Yucatan (Gaumer). 
11. Fidia tibialis. 
Obscure eneous, finely pubescent, the tibie and tarsi fulvous; thorax very finely and closely punctured; 
elytra subquadrate, closely punctured and pubescent, the interstices at the sides finely transversely 
rugose. 
Length 13 line. 
Head closely punctured and pubescent; eyes widely separated, entire; antennz extending only to the base of 
the elytra, black, the lower joints piceous at the base, the terminal joints thickened; thorax somewhat 
depressed, subcylindrical, narrowed posteriorly and at the apex, without distinct lateral margin, the disc 
closely punctured, clothed with fine greyish pubescence; scutellum thickly pubescent; elytra punctured 
in close irregular rows near the suture and clothed with rather long whitish pubescence, the sides finely 
wrinkled ; femora unarmed, black; tibiee and tarsi fulvous, the latter darker at the base of each joint ; 
underside closely pubescent. 
Hab. Mexico, Chilpancingo in Guerrero (Hdége). 
A single specimen. 
