Curculio penteri Pelsue and Zhang

Pelsue, Frank W. & Zhang, Runzhi, 2003, A Review of the Genus Curculio from China with Descriptions of Fourteen New Species. Part IV. The Curculio sikkimensis (Heller) Group (Coleoptera: Curculionidae: Curculioninae: Curculionini), The Coleopterists Bulletin 57 (3), pp. 311-333 : 316-317

Curculio penteri Pelsue and Zhang , new species

(Fig. 11–12, 42–44)

Holotype. China. Xishuangbanna male [ China / Yunnan /Xishuangbana/650-850/02

September 1958/X. Meng] ( IZAS).

Paratypes. (9) China. Xishuangbanna 2 males 1 female [ China / Yunnan /Xishuangbanna/ 850 m / 15 July 1957 / L. Zang] ( FWPC) ; Luxi 2 male [ China / Yunnan /Luxi/ 29–30 June 1958 / IZAS]( FWPC) ; Ruili 1 male [ China / Yunnan /Ruili/ 05 July 1959 / IZAS] ( FWPC) ; Xishuangbanna 1 female [ China / Yunnan /Xishuangbana/ 07 July 1958 / X. Meng] ( FWPC) Chung Kon 1 female [ China /Hainin Id./Chung Kon/ 19 July 1935 / L. Gressitt] ( CASC) ; Malaysia Trus Madi 1 male [ Malaysia / Borneo / Sabah / Trus Madi / 1900/ 200 km ESE Corla Kingbalu / 20–24 May 1995 / J. Mateu and D. Bourchard] ( CWOB) .

Description. Male: length: 4.8–5.3 mm (mean ¼ 5.0 mm, n ¼ 8) width: 2.6–2.8 mm (mean ¼ 2.7 mm, n ¼ 8). Head: medium-sized; punctures small with short, narrow, becoming longer toward eyes, of rubiginose scales; frons 0.23 as broad as head across eyes, clothed with small rubiginose scales. Rostrum: length: 3.2–3.4 mm (mean ¼ 3.3 mm, n ¼ 8); 0.65 as long as body; subcylindrical; broad at base, tapering to apex; five dorsal carinae, middorsal from frons to antennal insertion, punctures between carinae deep, oval; straight to antennal insertion then slightly deflected to apex; sparsely clothed with short, clavate, rubiginose scales; scrobe ventral; scape inserted in basal half. Antennae: length: scape 1.2 mm. funiculus: segment one 0.4 mm; two 0.2 mm, three 0.15 mm, four 0.125 mm; five 0.1 mm, six 0.125 mm, seven 0.2 mm, funicle 1.175 mm (n ¼ 1); scape 1.0 as long as funicle; club 0.75 mm, large, acuminate, segments 1–3 same length, longer than funicular segments 3–7. Thorax: length: 1.6–1.8 mm (mean ¼ 1.68 mm, n ¼ 8) width: 2.1–2.3 mm (mean ¼ 2.2 mm, n ¼ 8); 0.76 al long as broad; disc base broad, almost as broad as base of elytra, gradually rounded to constriction, convex in lateral view, clothed with narrow, clavate, rubiginose scales, with macula of fuscous scales; mesosternal intercoxal process prominent; scutellum small, round, impressed, clothed with fuscous scales; mesepimeron clothed with clavate rubiginose scales; mesepisternum clothed with clavate rubiginose and fuscous scales; metepisternum clothed with clavate rubiginose scales anteriorly and posteriorly with fuscous scales between; metasternum clothed with clavate rubiginose scales. Elytra: length: 3.0– 3.1 mm (mean ¼ 3.0 mm, n ¼ 8); striae deep; shallow scutellar declivity; humeri rounded; intervals flat, moderately broad, clothed with small, narrow, elongate, clavate, rubiginose and fuscous scales arranged in confused macula; crosshatched setae prominent fuscous and rubiginose; disc flat in lateral view. Legs: length of hind femur 2.2–2.5 mm (mean ¼ 2.38 mm, n ¼ 8), tooth mediumsized, wedge shaped; pro- and mesofemoral teeth small; femora broad based, feebly clavate, clothed with narrow, elongate, rubiginose and fuscous scales; tibiae sinuate, unci large, longer than tarsal claw. Abdomen: sternite 1 longer than 2 behind coxal cavity; sternite 3 longer than 4, together longer than 5; sternite 5 with emarginate apex, with lateral tufts of long seta-like scales; scales on all sternites narrow, clavate and rubiginose. Pygidium : small-sized; clothed with narrow, elongate, moderately long rubiginose seta-like scales. Genitalia: Median lobe 1.2 mm in length, 0.3 mm in width, margins narrower at base than midsection then narrowing again to apex, sclerotization thin, apex sharply pointed, in lateral view rather narrow, abruptly evenly deflected to apex; apodeme 1.5 mm in length (Figs. 42–44).

Female: length: 4.2–6.1 mm (mean ¼ 5.17 mm, n ¼ 2) width: 2.3–3.2 mm (mean ¼ 2.77 mm, n ¼ 2). Rostrum: length: 3.2–5.2 mm (mean ¼ 4.2 mm, n ¼ 2); 0.81 as long as body; carinae wanting, glabrous; cylindrical, base as broad as frons; frons 0.16–0.27 (mean ¼ 0.21, n ¼ 2) as broad as head across eyes. Antennae: length: scape: 0.7–1.2 mm (mean ¼ 0.95 mm, n ¼ 2); funiculus: segment one 0.55 mm, two 0.25 mm, three 0.15 mm, four 0.15 mm, five 0.125 mm, six 0.1 mm, seven 0.125 mm; club 0.65 mm. Thorax: length: 1.5–2.2 mm (mean ¼ 1.87 mm, n ¼ 2). width: 1.7–2.5 mm (mean ¼ 2.17 mm, n ¼ 2). Elytra: length: 2.5–3.4 mm (mean ¼ 3.05 mm, n ¼ 2). Legs: hind femur 2.0– 2.9 mm (mean ¼ 2.5 mm, n ¼ 2). Genitalia: spermatheca not dissected.

Plant Associations. Ficus macrocarpa Linnaeus.

Remarks. This species is very distinctive and stands alone from the remainder of the group based on the scale pattern on the dorsal pronotum, lateral vittae of rubiginose scales, the confused scale pattern on the elytra of piceous and rubiginose scales and the quite large club of the antennae.

Etymology. Named in honor of the senior author’s father-in-law Hiram Penter.