CONOTRACHELUS. 381 
Found in numbers at San Gerénimo. Recognizable by the dense ferruginous vestiture 
of the apical declivity of the elytra, the prothoracic markings (which partly enclose a 
transverse sparsely squamose basal space), the coarsely punctured under surface, the 
widely separated intermediate coxe, &c. ‘The rostrum of the female is long and stout, 
and it is much smoother in the Mexican examples than in those from Guatemala. 
There are several nearly allied South-American forms in the British Museum labelled 
under MS. names of Jekel. 
72. Conotrachelus deplanatus, sp.n. (Tab. XIX. figg. 17, 17 a.) 
Oblong-ovate, depressed, shining, rufo-piceous or ferruginous, more or less mottled with black, especially on 
the rostrum, the basal half of the elytra, and the anterior legs, the head entirely black; the vestiture 
sparse, whitish, slightly intermixed with ochreous, the elytra with a dense white patch covering nearly 
the basal half, extending downwards on to the metasternum, and the space between the two largest 
dorsal prominences almost bare, the prothorax with a white median line behind, continued on to the 
scutellum, the femora also annulate with white. Head densely punctate; rostrum exceedingly stout, 
curved, short, very little longer than the prothorax, abruptly gibbous at the base, coarsely, confluently 
punctate, unicarinate, more finely punctured at the apex, the apical half smoother in the Q, the antennex 
short, inserted a little before the tip, joints 4-7 of the funiculus transverse, 2 much shorter than 1. 
Prothorax transversely subquadrate, abruptly narrowed in front, the sides dentate anteriorly, the base 
deeply bisinuate; the surface uneven, very coarsely, irregularly punctate, the narrow interspaces here 
and there nodose or tuberculate. Elytra obliquely constricted and feebly dilated beneath the rather 
prominent, subangular humeri, and narrowing from a little beyond this to the apex, strongly sinuate in 
front, flattened in their basal third; seriate-punctate, the interstices 3, 5, 7, and 9 costate, the ridge on 
3 and 5 twice, and that on 7 once, broadly interrupted, the second and third elevations on 3 swollen and 
prominent. Mesosternum bituberculate in front. Ventral segments very finely and sparsely punctate, 
5 shallowly foveate in the g¢. Femora bidentate. Tarsal claws with a moderately long tooth. 
Length 43-5, breadth 21-24 millim. (d 2.) 
Hab. Mexico, Toxpam in Vera Cruz (Sallé) ; GUATEMALA, Sinanja in Vera Paz, 
Mirandilla (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).—Brazit. 
(Mus. Brit.); Paraguay (Mus. Dresden). 
Ten specimens. In this species the elytra at the base are broadly flattened and 
densely clothed with narrow white scales, and the space between the two larger 
prominences on the disc is almost bare and shining. ‘The rostrum is greatly thickened, 
short, and abruptly gibbous at the base. The sexual differences are slight. 
There is an example of C. deplanatus from Brazil in the British Museum labelled 
C. lepidus, Dej., a name used by Boheman for a very different Monte Videan insect. 
73. Conotrachelus prestans, sp.n. (Tab. XIX. figg. 18, 184, 9.) 
Subovate, robust, moderately shining, black, marked with ferruginous above, the larger elevations on the elytra 
usually of this colour; the antenne and legs ferruginous, the femora and tibie annulate with black, the 
anterior tibie entirely black; the vestiture very fine and dense (except on the almost bare space between 
the two large prominences on the elytra), brownish, intermixed with white and ochreous, that on the 
transverse depression on the disc of the prothorax ochreous, the elytra each with a white streak at 
the base of the third interstice and a large greyish patch on the disc beyond the middle, the apical declivity 
slightly setulose; the femora biannulate with white, the posterior pair with a large ochreous patch at 
