Eurhamphus fasciculatus Shuckard, 1838

Anderson, Robert S., 2019, Eurhamphus pancinii, a new species of the genus Eurhamphus Shuckard, 1838 (Coleoptera: Curculionidae: Molytinae: Orthorhinini) from West Papua, Zootaxa 4613 (3), pp. 596-599 : 597-598

Eurhamphus fasciculatus Shuckard, 1838 ( Figure 8 )

Eurhamphus fasciculatus Shuckard, 1838: 506 .

Size 33 mm (n=1) in male, 24–28 mm (n=7) in female; width 8–14 mm. Dorsal vestiture of elongate-narrow scales moderately dense, arranged in transverse or oblique rows, glabrous areas between scales broad, slightly to distinctly raised. Pronotum and elytra with numerous distinct tufts of elongate hair-like scales. Rostrum of female slightly longer than pronotum length, rostrum of male distinctly longer than pronotum length, granulate dorsally, with a pair of larger, dorsally directed triangular projections at point of antennal insertions and a second pair subapically. Pronotum with two distinct lateral tufts of brown (anteriorly) and white (posteriorly) erect hair-like scales just before midlength. Middle of pronotum broadly longitudinally tumid, somewhat raised above lateral regions, sculpturing of pronotum with distinct depression at position of each tuft. Creamy white scales of pronotum scattered over surface of disc. Elytra with numerous tufts of elongate white to light or dark brown hair-like scales situated and appearing as follows: between interstriae 2 and 3 at basal one-third, brown, large; between interstriae 4 and 5 just anterior to basal one-third, brown, large; between interstriae 4 and 5 at basal one-third, white, small; across interstriae 2 to 4 just behind midlength, brown, large; across interstriae 2 to 4 just in front of midlength, white, small; between interstriae 8 and 9 just behind midlength, white, small; between interstriae 9 and 10 behind humerus, white, small; and, with scattered fine white tufts in posterior one-quarter on declivity. Sutural interstria, interstria 3, and humerus strongly raised and swollen basally; all interstriae ascending posteriorly, in profile elytra appearing somewhat humped or tumid towards base. Legs with front tibia with inner margin in male with row of dense, long fine hairs throughout apical 2/3 of length; femora on all legs with inner margin simple, not toothed. Aedeagus of male very short and broad, apically emarginate, internal sac with single large, scythe-like apical sclerite.

Variation: Tufts of hair-like scales vary between individuals in size but not in position; tufts are long and dense in the one male examined, much longer and denser than in females.

Figures

FIGURES 7–8. Eurhamphus species, dorsal view aedeagus. 7. E. pancinii. 8. E. fasciculatus.