COLUTHUS.—CCELONERTUS. 339 
the ridges terminate in both sexes in a small transverse tuberculiform prominence in 
front of each of them, the coxe themselves being also furnished with a short 
smooth ridge within, locking-in the rostrum in repose. Coluthus is related to Limno- 
baris (as extended by Casey), but it is sufficiently distinguished by the prosternal 
structure, &c. 
1. Coluthus cribrarius, sp. n. (Tab. XVII. figg. 18, 184, 0, 3.) 
Black or piceous, shining ; clothed above with scattered, coarse, oblong, setiform, adpressed, white or yellowish- 
white scales intermixed with shorter and smaller, semierect, blackish scales, the vestiture of the elytra 
arranged in a single line along each interstice, that on the prothorax clustered along the sides (or at 
each hind angle) and down the middle; the under surface (a space on the propleura excepted) densely 
clothed with white or yellowish-white scales, the legs and rostrum with similarly-coloured scales. Head 
closely punctate ; rostrum closely striato-punctate and squamose to the tip, slightly smoother in the @. 
Prothorax a little broader than long, the sides rounded anteriorly and gradually converging or sub- 
parallel at the base; the surface pitted with coarse, deep, rounded punctures, except along the smooth 
median space. Elytra wider than the prothorax, depressed along the suture at the base; sharply 
punctate-striate, the interstices flat and each with an irregular row of rather coarse punctures. Beneath 
densely punctate; first ventral segment slightly flattened down the middle in the ¢. 
Length 3,3, breadth 13-1? millim. (d @.) 
Hab. Mexico, Tapachula in Chiapas (Hége); Bririsn Honpuras, Belize (Blan- 
caneaux); GUATEMALA, Las Mercedes, Cahabon, Chiacam (Champion), Coban (Conradt) ; 
Panama, David (Champion). 
Found in numbers at Chiacam in Vera Paz. The two specimens from Las Mercedes 
(in one of which the elytra are tumid on the disc below the base) differ from the 
others in having the elytra relatively wider at the shoulders ; and the single example 
from David is less elongate, and has smaller and narrower white scales on the elytra. 
The Chiacam examples are taken as the types. They were found, I believe, on the 
flowers of a Composite plant. 
CQELONERTUS. 
Celonertus, Solari, Ann. Mus. Genova, xli. p. 441 (1906). 
Mandibles short, notched within, rounded externally, decussate at the tip when closed; rostrum short and 
stout, curved, received in repose in a very deep prosternal sulcus, the walls of which are greatly raised, 
paraliel, and continued obliquely backward between the anterior coxe; antenne inserted at the middle 
of the rostrum, the outer joints of the funiculus strongly transverse and nearly as wide as the compa- 
ratively small club; prothorax deeply bisinuate at the base ; scutellum very small, free, subquadrate ; 
elytra long, subparallel; pygidium not visible; prosternum with the basal process very short; meso- 
sternum depressed, exposed; anterior cox narrowly separated, hollowed and strongly carinate within ; 
legs short ; femora stout, clavate, sulcate along the greater part of their length beneath, the posterior 
pair reaching the second ventral suture; tarsal claws slender, free; body elongate, subcylindrical, rather 
convex, squamose. 
The definition of this genus was drawn up from the Central-American species 
before I had identified the latter with Celonertus nigrirostris, Solari, and it will apply 
equally well to his type, C. sguamulosus. ‘The four forms he referred to it, all from 
Brazil, may be known by their elongate, subcylindrical shape, and their short legs 
