HYPERMALLUS. 25 
HYPERMALLUS. 
Hypermallus, Lacord. Gen. Col. viii. p. 302. 
Elaphidion (pars), Newman, White, Leconte. 
The range of this genus is much wider than that of Elaphidion, although still con- 
fined to the American continent. The majority of the species occur in the south tem- 
perate latitudes of North America and in the West Indies; but some are found in 
Brazil, and as far south as Parand and Buenos Ayres. About fifty have been described ; 
but many of them probably do not strictly belong to the genus. 
1. Hypermallus gibbulus. 
H. incerto (Newm.) similis, at differt thorace magis convexo, dorsoque fere integro. Elongatus, fuscus, antennis 
pedibusque fusco-rufescentibus, fusco breviter pilosus, thorace elytrisque maculatim cinereo-tomentosis ; 
thorace valde rotundato, supra convexo, confertissime punctulato, haud tuberculato, linea brevi dorsali 
guttisque utrinque politis; scutello cinereo; elytris recte truncatis, angulo suturali breviter spinoso, 
supra confertim punctatis, apicem versus punctulatis ; metathoracis episternis fere parallelis. 
Long. 8 lin. 
Hab. Mexico, Paso del Macho (Hége). 
Closely resembling H. incertus (Newm.) in form and colouring, but distinguished at 
once by the absence of dorsal callosities from the thorax, which is more rounded 
on the sides and more evenly convex, the surface being varied only by a short polished 
streak in the middle of the dorsal line and a small spot or two on each side of the 
disk, scarcely visible in some specimens. The tawny ashy tomentose spots are 
scattered over the elytra, being more confluent near the base and on the sides than 
towards the apex. The apex itself is spined only at the sutural angle of the straight 
truncature, the exterior angle being simply acute and not spiniform as in H. incertus. 
2. Hypermallus undulatus. 
Fere cylindricus, atro-fuscus, cinereo incumbenti-pubescens, thorace guttis, scutello, elytris fascia mediana 
undulata maculaque utrinque ante apicem canis; thorace oblongo, lateribus ante medium rotundatis, toto 
pronoto eleganter reticulato-punctato ; elytris apice integris, supra squaliter crebre punctulatis ; pectore 
femoribusque crebre punctatis; antennis articulis 3°-4™ apice breviter spinosis. 
Long. 54 lin. 
Hab. Mexico, Trapiche (Hége). 
A very distinct species, resembling the West-Indian H. transversus (White) in the 
regular alveolate sculpture of the pronotum, without trace of inequality or callosities ; 
but the prothorax is much narrower and more elongate than in H. ¢ransversus, and the 
species differs in the less spinose antenne and apex of the elytra. The episterna of the 
mesothorax gradually but slightly taper from base to apex; they are, however, narrow 
throughout and not wide at the base as in Romaleum. 
3. Hypermallus scabricollis.. (Tab. III. fig. 13.) 
Hypermallus scabricollis, Bates, Trans. Ent. Soc. 1872, p. 175. 
Hab. Nicaragua, Chontales (Belt). 
BIOL. CENT.-AMER., Coleopt., Vol. V., Feb. 1880. e 
