298 RHYNCHOPHORA. 
latter connected behind with a shallower, obliquely descending, densely squamose 
groove ; the antennal scape short and stout; the eyes small and very widely separated ; 
the elytra 10-striate, the outer strie coalescent at about the basal third; the legs 
short and stout ; the posterior tibize laminate and squamose at the apex, and with the 
articular surface short and terminal; the anterior tibiz denticulate and unguiculate ; 
the tarsal claws free ; and the body winged and densely squamose. This genus must 
be placed near Compsus. The free tarsal claws separate Brachystylus from the 
Phyllobiina. 
1. Brachystylus tamaulipanus, sp.n. (Tab. XIV. figg. 1, 1a, 2.) 
oo° 
Oblong, black, densely clothed throughout with chalky-white scales, and also set with minute, widely 
scattered, decumbent hairs. Head and rostrum obsoletely canaliculate, the rostrum short, broad, 
very little narrower than the head, hollowed anteriorly, and deeply emarginate at the apex, the bare 
nasal plate short and concave ; antenne rather short, the scape moderately thickened and about reaching 
the middle of the eyes, the latter small, depressed, truncate in front. Prothorax cylindrical, along the 
median line as long as broad, slightly narrower at the apex than at the base, sparsely punctate (as seen 
through the vestiture), transversely wrinkled before and behind the middle. Elytra subparallel in their 
basal half in g, gradually widened to beyond the middle and with the apices abruptly conjointly 
produced in 9, flattened on the disc anteriorly, the humeri not very prominent ; punctate-striate, the 
interstices more or less convex. Legs short and stout; anterior tibiz denticulate within. 
Length 65-73, breadth 21-22 millim. (¢ @.) 
Hab, Mexico, Tampico in Tamaulipas (Schwarz, in U.S. Nat. Mus.). 
Three specimens, found in December. Smaller than the N.-American B. acutus (Say), 
the rostrum more deeply excavate in front, the antennal scape not so stout, the eyes 
small and depressed, the humeri less prominent, the scales chalky-white. 
2. Brachystylus microphthalmus, sp. n. (lab. XIV. figg. 2,24, ¢.) 
Oblong, black, variegated above with a dense clothing of brown and whitish scales, the latter condensed into 
two faint vittee on the disc of the prothorax, and various markings on the elytra—a patch on the 
shoulder, a short irregular oblique fascia on the dise at about one-third from the base, a common 
transverse fascia beyond the middle, and a large apical patch,—the scales on the under surface whitish, 
the surface also set with widely scattered, minute, decumbent hairs. Head canaliculate between the 
eyes, the rostrum short, broad, hollowed anteriorly and deeply emarginate at the apex, the nasal plate 
short and depressed ; antenne rather short, the scape moderately thickened and barely reaching the 
middle of the eyes, the latter small and convex. Prothorax cylindrical, nearly as long as broad, 
sparsely punctate. lytra subparallel in their basal half, rather convex, comparatively short, the 
humeri moderately prominent and obliquely truncated in front; punctate-striate, 
Legs short and stout; anterior tibie denticulate within. 
Length 5, breadth 13 millim. (¢.) 
the interstices convex. 
Hab. Mexico, Oaxaca ( L/ége). 
One specimen. More convex than B. tamaulipanus, the rostrum less excavate 
in front, the eyes smaller and convex, the upper surface variegate. ‘lhe much smaller 
eyes, the less thickened antennal scape, the broader rostrum, the cylindrical prothorax, 
the shorter, more convex, differently marked elytra, &c., separate the present species 
from B. acutus. | 
