Description
provided by INOTAXA archive
Rostrum subquadrate, a little longer than broad, widened outwards, hollowed down the middle to the inter-ocular fovea, and with the depression limited on each side by a stout oblique ridge, which extends forward to above the points of insertion of the antennæ, the nasal plate triangular, the genæ emarginate, the scrobes lateral, deep, and descending to beneath the eyes, the latter moderately large; antennæ rather stout, the scape not extending beyond the eyes, widened from near the base or subclavate; prothorax long, cylindrical or subcylindrical, constricted in front, truncate or feebly bisinuate at the base; scutellum visible; elytra elongate, 10-striate, the striæ placed in pairs between the alternately raised interstices and their position indicated by very fine impressed lines visible through the dense vestiture, the outer striæ approximate or coalescent from about the basal fourth, the small seriate punctures each placed in a foveiform depression, the humeri obtuse or subangular; mesothoracic epimera narrow, oblique; metathoracic episterna narrow, dilated inwardly in front; legs stout; femora unarmed; tibiæ closely setose and obsoletely denticulate, the anterior and intermediate pairs unguiculate, the posterior pair laminate at the apex, their articular surface large, cavernous, and not entirely glabrous; body elongate, apterous*, squamose.* Not definitely ascertained, owing to want of material.
Champion in: David Sharp & G. C. Champion, Oct. 1911. Biol. Centr.-Amer.,Coleoptera, vol. 4, pt. 3: 280.
- license
- cc-by-3.0
- copyright
- Biologia Centrali-Americana
Physical description
provided by INOTAXA archive
The three species belonging to this genus agree remarkably well inter se, not only in the general form of the rostrum, the peculiar elytral sculpture, &c., but in having two small, longitudinally placed, bare, polished foveæ on the disc of the prothorax. The meso- and metasternal side-pieces are shaped as in the winged Otiorhynchids, and there is a distinctly visible scutellum, though the wings are doubtless wanting or rudimentary and the elytra connate. These insects are from Mexico or Guatemala, and all of them appear to be very rare. Pactorrhinus, Ancey, type P. grisescens, from Arizona [Le Naturaliste, i. 485 (Oct. 1881)], may be an allied genus†.† This insect does not appear to have been identified or noticed by American coleopterists. It is referred to the “Naupactides
” of Lacordaire, and stated to be not unlike a Cleonus.
- license
- cc-by-3.0
- copyright
- Biologia Centrali-Americana