Curculio pascoei 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 : 326-328

Curculio pascoei Pelsue and Zhang , new species

( Figs. 31–32 )

Holotype. China. Xikang male [ China /Sichan/Xikang/05 September/Y, Zhou]

( IZAS).

Description. Male: length: 5.6 mm (n ¼ 1). width: 2.6 mm (n ¼ 1). Head: medium-sized; punctures small with narrow, elongate, testaceous scales dorsally, ventrally short, acute apices, testaceous scales; frons 0.25 as broad as head across eyes, clothed with narrow, elongate, suberect, testaceous scales. Rostrum: length: 2.9 mm (n ¼ 1); 0.52 as long as body; subcylinderical; three dorsal carinae from frons to insertion of antennae; punctures between carinae moderate, oval with suberect scales in basal third; gradually deflected; scrobe lateral; scape inserted in apical half. Antennae: length: scape 1.4 mm, funiculus segment one 0.35 mm, two 0.3 mm, three 0.25 mm, four 0.2 mm, five 0.15 mm, six 0.15 mm, seven 0.15 mm, club 0.55 mm, funicle 1.55 mm (n ¼ 1); scape 0.9 as long as funicle; club elongate, acuminate, as long as funicular segments 5–7; segment 1 of club longer than funicular segment 7. Thorax: length 1.5 mm (n ¼ 1); width 1.9 mm (n ¼ 1); 0.79 as long as broad; disc dorsally with margins parallel for 3/ 4 of length then abruptly rounded to constriction, flat in lateral view, with diffuse lateral macula of luteous scales, medially diffuse vitta of luteous scales; base straight; mesosternal intercoxal process not prominent, clothed with narrow, elongate, dirty white scales; scutellum moderate-sized, longer than broad, clothed with luteous scales; mesepimeron, mesepisternum, metepisternum, and sternum clothed with clavate luteous scales. Elytra: length 3.6 mm (n ¼ 1); striae narrow, deep with narrow, elongate, luteous scales; shallow scutellar declivity; humeri prominent, somewhat acute; intervals broad, flat, clothed with fuscopiceous and luteous clavate scales; base with defuse indication of luteous macula; distal 1/3 with very diffuse macula of luteous and fuscopiceous scales mixed; crosshatch setae short, not prominent. Legs: length hind femur 2.5 mm (n ¼ 1), not reaching apex of abdomen, tooth medium, wedge shaped; pro- and mesofemoral teeth small; clava moderate; tibiae sinuate, all unci small; left metatarsus missing. Abdomen: sternite 2 longer than 1 behind coxal cavity, ascending to three, with moderate median declivity; sternite 3 longer than 4, combined longer than 5; sternite five truncate; all sternites clothed with clavate luteus scales. Pygidium : medium-sized; clothed with long dense testaceous seta-like scales. Genitalia: not dissected.

Remarks. This species is similar to C. hobbsi n. sp., but can be distinguished by having a prominent mesosternal intercoxal process, and is slightly more robust.

Etymology. This species is named in honor of eminent entomologist ‘‘Francis

Polkinghorne Pascoe.’’

Figures

Figs. 31–32. Curculio pascoei n. sp. Male, habitus dorsal and lateral views, holotype. Figs. 33–34. Curculio hobbsi n. sp. Male, habitus dorsal and lateral views, holotype. Figs. 35–36. Curculio songi n. sp. Male, habitus dorsal and lateral views, holotype. Various scales.