ANCHONUS. 73 
Hab. Mexico (Mus. Brit.), Sierra de Durango (Flohr), Orizaba, Toxpam (Sal/é), 
Jalapa (Hoge). 
This is the largest and most distinct of the Central-American Anchoni; it is not 
rare in the State of Vera Cruz, whence we have received a long series. The tubercles 
on the elytra are large and very prominent, though variable in size, and there are also 
six on the disc of the prothorax and two oblong prominences at the apex in the middle. 
The prothorax appears to be transversely gibbous and trisulcate in the specimens with 
very prominent elevations on the disc. In one of those from Durango the tubercles of 
the elytra are smaller than usual. 
8. Anchonus silvicola, sp. n. (Tab. V. figg. 13, 134, 3.) 
Elongate, black, the antenne and tarsi obscurely rufescent; the sete rather long and coarse and arranged 
in fascicles on the prothorax and elytra. Rostrum (¢) stout, curved, cylindrical, rugosely punctate to 
the tip and obsoletely carinate, (2 ) smoother and shining at the tip. Prothorax about as long as broad, 
a little flattened on the disc, rounded at the sides, much narrowed in front and behind, and moderately 
constricted before the apex ; the surface sparsely granulate, except along the broad depressed median 
space and a sinuous space midway between this and the margin, which are smooth, with two feeble 
setigerous prominences at the apex and two or more on the disc; the flanks sparsely punctate. LElytra 
a little broader than the prothorax, and of about the same width at the base, convex, ovate, coarsely 
seriate-punctate, the interstices 2-6 each with a scattered series of oblong, prominent, setigerous, finely 
granulate tubercles, the basal margin raised. Beneath coarsely, sparsely punctate. Femora coarsely 
punctate and obsoletely granulate. 
Length 54-64, breadth 2-23 millim. (¢ 2.) 
Hab. Guatemaua, Sinanja, Sabo, and Purula in Vera Paz (Champion). 
Seven specimens, from the mountains to the south of the Polochic Valley. Very 
like A. gibbirostris, but easily separable therefrom by the non-gibbose rostrum, which 
is also less densely punctate and obsoletely carinate, with the widened apical portion 
relatively shorter in the male. Two females from Cerro Zunil, on the Pacific slope, 
may belong here; but they have the granular elevations on the prothorax more 
numerous and tending to form transverse or sinuous ruge, and the rostrum very slightly 
thickened towards the base. ‘The less rugose surface, and the prominent, scattered, 
fasciculate tubercles on the elytra, the elytra themselves being less widened at the base, 
distinguish this species at once from A. elongatus. 
9, Anchonus carinirostris, sp.n. (Tab. V. figg. 14, 14a, ¢.) 
Oblong, black or piceous, the antenne and tarsi more or less rufescent ; the sete coarse, scattered, semierect, 
and arranged in fascicles on the prothorax and elytra. Rostrum (<¢ ) curved, distinctly thickened towards 
the base and there very feebly constricted, coarsely seriate-punctate, with the interspaces finely carinate, 
(2) shining and sparsely, finely punctate at the tip. Prothorax broader than long, somewhat flattened 
on the disc, nearly as wide as the elytra, the sides much dilated at the middle and abruptly constricted 
before the apex ; the surface sparsely punctate and minutely granulate laterally and along each side of 
the broad flattened median space, and binodose at the apex and on the disc, for the rest smooth. Elytra 
slightly wider at the base than the prothorax, convex, ovate, with interrupted rows of shallow, somewhat 
widely separated punctures, the interstices 2-7 each with a scattered series of setigerous tubercles, those 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 4, October 1902. LL 
