Eugnamptus bellus Hamilton & Novinger, new species
Creators: name: Hamilton, R. W.
name: Novinger, A. L.
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Rhynchitidae
Eugnamptus
Eugnamptus bellus

description: Eugnamptus bellus Hamilton & Novinger, new species
(Figs. 8, 20)
Type designation: Holotype male with the following label data: Costa Rica, Prov. Heredia, F. La Selva, 3 km S Pto. Viejo, 10°26'N 84°01'W, vii.29.1976, beating, H. A. Hespenheide, INB0003645849. Allotype female labeled as follows: Costa Rica, Heredia: Est. Biol. La Selva, 50–150 m, 10°26'N 84°01'W, 14 Jun 1993, INBio­OET, M/11/33, INB0003645848.
Size range. Male: 3.3 x 1.2 mm to 3.5 x 1.4 mm; Female: 3.7 x 1.4 mm to 4.1 x 1.6 mm.
Description. Male: Head slightly longer than wide, moderately punctured; distance between punctures equal to or distinctly greater than diameter of puncture, strongly constricted at base; gena shorter than one­half longitudinal diameter of eye; longitudinal diameter of eye distinctly shorter than length of rostrum; frons with weak mid­dorsal channel, slightly wider than base of rostrum. Rostrum as long as head, slender, widened slightly beyond antennal insertions; width at apex slightly wider than frons. Antennae inserted near middle of rostrum; club long, almost 1 ½ times longer than funicle; segment 1 of funicle cylindrical, slightly shorter than scape; segments 2 and 3 slender, clavate, about as long as scape; segments 4 and 5 slightly shorter, less clavate; segments 6 and 7 slightly shorter than 4 and 5, more globose; basal and middle segments of club long; middle segment slightly longer than basal segment; terminal segment of club short, only about ½ as long as middle segment. Pronotum longer than wide, moderately punctured; distance between punctures equal to or less than diameter of puncture. Elytra longer than wide, widest at apical third; strongly depressed behind scutellum; striae distinct throughout, becoming smaller posteriorly; intervals weakly convex, narrower than width of striae; row of semi­erect setae associated with strial interspaces; row of erect setae along elytral interspaces; next to last strial row joins last strial row near apex. Female: Same as male except head about as wide as long; rostrum distinctly longer than head, strongly arcuate, width at apex subequal to width of frons; antennae inserted just before basal 1/3; frons subequal in width to rostral base.
Color. Body blackish brown; coxae, most of femora and abdominal ventrites yellowish brown; antennae and legs from apices of femora to tarsi reddish to blackish brown; elytra brownish black with a large yellowish brown area extending from humeri to just beyond elytral midpoint; yellowish brown area widening in middle to reach elytral suture.
Comments. The type series consists of nine specimens. Eugnamptus bellus has a unique color pattern (Fig. 20 b & d). The pattern is consistent with little or no difference between male and female. The pedon (Fig. 8 b) is gradually narrowed from the middle into a narrowly rounded apex with a short median linelike impression. The TA is small and similar to that of E. pusillus and E. herediensis. This species was taken in malaise traps and by beating Inga sp. (Fabaceae).
Name derivation. The specific name is derived from the Latin word meaning beautiful.
description: Published as part of Hamilton, R. W. & Novinger, A. L., 2004, Eugnamptine weevils of La Selva, Costa Rica (Coleoptera: Rhynchitidae), pp. 1-43 in Zootaxa 610 on pages 34-35, DOI: 10.5281/zenodo.158302