DIAPREPES.—HADROMERWS. 181 
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punctures which become confused on the outer part of the disc below the base, the interstices feebly 
convex. Tibi without denticles on their inner edge. 
Length 133-18, breadth 43-74 millim. (¢ 2.) 
Hab. Nicaracua, Chontales (Belt). 
Five specimens, varying greatly in size, as well as in the colour of the scales, which 
is disguised by an ochreous exudation. The vibrisse are easily abraded, and are 
wanting in two examples. ‘This insect is less convex than D. albofasciatus, the 
rostrum is more finely carinate, and the vestiture is much denser over the whole surface. 
PACHNEUS. 
Pachneus, Schinherr, Cure. Disp. Meth. p. 121 (1826); Gen. Cure. ii. p. 57; Lacordaire, Gen. 
Col. vi. p. 106; Horn, Proc. Am. Phil. Soc. xv. p. 82. 
A genus including a few species from the Antilles and Florida, one of which has 
been recorded from Mexico, but this locality seems to require confirmation. They 
are all of rather large size, and densely, uniformly clothed with whitish, pale yellow, 
blue, or green opaque scales. The prothorax is strongly bisinuate at the base in 
—~&P, opalus and P. litus, more feebly so in P. distans, and the anterior margin also 
is sinuate on each side beneath, and the vibrissee are well developed. 
1. Pachneus litus. (Tab. VII. figg. 24, 24 a.) 
Cyphus litus, Germ. Ins. Spec. nov. p. 431°. 
Pachneus litus, Gyll. in Schénh. Gen. Cure. ii, p. 59°; vi. 1, p. 426°; Lacord. Gen. Col. vi. 
p- 107, nota*. 
Hab. Mexico 3? 4.—Cusa ! 3, 
Our figure is taken from a Cuban specimen. 
HADROMERUS. 
Hadromerus, Schénherr, Curc. Disp. Meth. p. 186 (1826); Gen. Cure. ii. p. 127; Lacordaire, 
Gen. Col. vi. p. 102; Horn, Proc. Am. Phil. Soc. xv. p. 85. 
A genus containing some of the most beautiful known American winged Otiorhyn- 
chids, H. dejeant, gemmifer, opalinus, &c., being more or less densely clothed with 
glittering metallic scales. In a few forms, however, the scales vary greatly in colour 
and may even become uniformly whitish or cinereous in the same species. The 
females of all of them have the suture of the elytra set with long erect hairs towards 
the apex, and the males a small claw at the inner apical angle of the intermediate 
tibie. The type of Hadromerus is H. nobilitatus, Gyll. One of the Guatemalan 
forms has been found in numbers in the ‘tierra fria.” 
The seven Central-American forms may be tabulated thus :-— 
a. Surface closely squamose, the legs included, the femora (except in immature 
examples) at least black. 
a’, Elytral interstices each with a distinct irregular series of small bare 
spots. 
