PSEUDEUSTYLUS.—BRACHYSTYLUS. 297 
1. Pseudeustylus cupreoviridis, sp.n. (Tab. XIII. fig. 29, 2.) 
Moderately elongate, piceous ; densely squamose, the scales on the head, rostrum, and legs, on the anterior 
margin and down the middle of the prothorax, along the base, suture, and outer part of the disc of the 
elytra, and on part of the under surface, cupreous, those on the rest of the body green or greenish- 
cinereous; the elytra also sparsely set with uniseriately arranged fine, stiff, erect setee, and the rest of 
the surface with short decumbent hairs. Head and rostrum canaliculate; eyes very large, rounded, 
convex ; antennal scape moderately stout, joint 2 of the funiculus considerably longer than 1. Prothorax 
a little broader than long, subcylindrical, obliquely narrowing forwards, obsoletely canaliculate; with 
coarse scattered punctures intermixed with a fine dense punctuation. Elytra elongate-triangular, 
conspicuously punctate-striate, the interstices somewhat convex, the humeri prominent, the apices feebly 
mucronate. 
Length 73-91, breadth 23-3), millim. (¢ 9.) 
Hab. Panama (Libbe, in Mus. Dresden), Bugaba (Champion). 
Three males and one female. A remarkably distinct form, with the cupreous and 
green portions of the surface sharply contrasted (recalling Pandeleteius erubescens and 
Exophthalmus carneipes), the eyes very large, the scrobes wholly visible from above, 
the anterior femora dentate. 
2. Pseudeustylus cupreotinctus, sp.n. (Tab. XIII. figg. 30, 30a, 9.) 
Q. Elongate, black, shining; above thickly clothed with cupreo-cinereous, the lower surface with whitish, 
scales, the scales on the elytra here and there condensed into denser patches which are separated by 
small partially denuded spaces (? abraded), and also set with short, scattered, decumbent, whitish sete. 
Head and rostrum canaliculate, the rostrum longer than broad and with the upper portion parallel- 
sided; eyes very large, somewhat depressed, oval as seen from above; antennew slender, the scape 
feebly clavate at the tip, joint 2 of the funiculus twice as long as 1. Prothorax about as long as broad, 
subcylindrical, obliquely narrowed anteriorly, interruptedly canaliculate; with coarse scattered punctures 
intermixed with a fine interstitial punctuation. Elytra elongate, subparallel to beyond the middle, the 
humeri prominent ; coarsely punctate-striate (the punctures appearing fine where covered by the scales), 
the interstices flat on the disc, feebly convex towards the sides and apex. 
Length 104, breadth 33 millim. 
Hab. Guatemata, Cerro Zunil, Pacific slope (Champion). 
One specimen. More elongate than P. cupreoviridis, the antenne more slender, the 
eyes depressed, the elytra relatively longer, with the sete shorter and decumbent, the 
scales uniformly coloured. ‘This species is extremely like Exophthalmus distigma, an 
insect occurring in abundance at the same locality, but it is separable at a glance by 
the superior scrobes, the longer, 10-striate elytra, and the dentate anterior femora. 
BRACHYSTYLUS. 
Brachystylus, Schéuherr, Gen. Cure. vill. 2, p. 4383 (1845) ; Lacordaire, Gen. Col. vi. p. 207; 
Horn, Proc. Am. Phil. Soc. xv. p. 90. 
Brachystylus has hitherto included a single species only, B. acutus (Say), from 
North America; the two from Mexico now added are perfectly congeneric. They 
have a short broad rostrum, with short, superior, posteriorly converging scrobes, the 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, October 1911. 2 QQ 
