Homorthorhinus Voss, 1960

Kuschel, Guillermo, 2008, Curculionoidea (weevils) of New Caledonia and Vanuatu: Basal families and some Curculionidae, Mémoires du Muséum national d'Histoire naturelle 197, pp. 99-250 : 212-213

Homorthorhinus Voss n. stat. (from subgenus of Orthorhinus )

Homorthorhinus Voss, 1960: 313 .

Type species: Orthorhinus brachypus Pascoe.

DESCRIPTION. — Elytra cylindrical, slightly wider than prothorax, with inistinct shoulders and callus, with odd interstriae at top of declivity distinctly more convex, subcostate. Femora relatively short, clavate; tooth on hind femora considerably larger than on middle femora, ciliate; fore tibiae not strongly compressed, with blunt dorsal edge; hind tibiae strongly curved throughout, with a sharply pointed tooth at end of the lower curve, with short, rather thick and straight uncus, that on hind tibiae seemingly in line with curve of upper edge; premucro small or indistinct. Fore coxae disjunct, in male prolonged. Mesepisternum prominent with a compressed tubercle.

Male (features from H. perversus ): tegmen with wide, anteriorly bisinuous ring, with distinctly disjunct broad parameral lobes and a distinct tooth between them. Aedeagus broadly rounded at apex, translucent, submembranous except for a well-pigmented arrowhead-like feature reaching apical margin; internal sac with a moderately rigid tube as basal sclerite, this about as long as pedon; median sclerites fused, W-shaped apicad.

Female (based on H. perversus ): sternite 8 with broad, densely pubescent arms, these separated by a median membrane, with slender apodeme; hemisternites pigmented, with a relatively narrowly rounded apex topped with styli; bursa elongate elliptic, slightly pigmented at ventral third from base at insertion point of spermathecal duct; spermatheca long, thin, weakly curved, yellowish brown but with gland extension and bottom of stem heavily pigmented to appear black, spermathecal duct emerging from the middle of bottom, gradually and considerably enlarging to nearly with of bursa, with a pronounced bend halfway along.

DISTRIBUTION. — New Guinea, Solomon Is.

HOSTPLANTS. — No information.

ETYMOLOGY. — ‘Homorthorhínus’ is a Greek compound meaning ‘similar to Orthorhinus ’.

REMARKS. — Homorthorhinus comprises Orthorhinus brachypus Pascoe (1885) from New Guinea and O. perversus Pascoe (1885) from New Guinea and Solomon Islands.