Curculio careoparvus 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 : 322-323

Curculio careoparvus Pelsue and Zhang , new species

(Figs. 23–24, 51)

Holotype. China. Jilong male[ China / Xizang /Jilong/ 2,800 m / 27 July 1975 / X. Zhang et al.] ( IZAS).

Paratypes. (2) China. Jilong male[ China / Xizang /Jilong/ 2,800 m / 27 July 1975 / X. Zhang et al.] ( FWPC) female[ China / Xizang /Jilong/ 2,800 m / 27 July 1975 / X. Zhang et al.] ( IZAS) .

Description. Male: length: 5.7–6.0 mm (mean ¼ 5.85 mm, n ¼ 2). width: 2.7–2.8 mm (mean ¼

2.75 mm, n ¼ 2). Head: medium-sized; punctures small with short, narrow, luteus scales, becoming longer before frons; frons 0.17 as broad as head across eyes, elongate shallow slit-like interocular fovea. Rostrum: length: 3.0– 3.2 mm (mean ¼ 3.1 mm); 0.53 as long as body; cylindrical; large oval punctures with ridges between punctures from frons to antennal insertion, with small oval punctures to apex; gradually deflected; scrobe lateral; scape inserted past midpoint. Antennae: length: scape: 1.6 mm. funiculus: segment one 0.45 mm, two 0.35 mm, three 0.3 mm, four 0.2 mm, five 0.2 mm, six 0.2 mm, seven 0.175 mm, club 0.6 mm, funicle 1.8 mm (n ¼ 1); scape 0.89 as long as funicle; club elongate, acuminate, compact, not as long as funicular segments 5–7. Thorax: length: 1.3–1.4 mm (mean ¼ 1.35 mm, n ¼ 2). width: 1.7–1.75 mm (mean ¼ 1.725 mm, n ¼ 2); 0.78 as long as broad; 0.63 as broad as elytra base; disc with margins parallel to just before constriction, then gradually rounded to constriction, flat in lateral view, clothed with narrow, elongate, luteus scales medially and feeble vittae of ochroleucus scales laterally, punctures small, base straight; mesosternal intercoxal process feebly visible, clothed with narrow, elongate, white scales; scutellum very narrow, longer than broad, subimpressed, clothed with ochroleucus scales; mesepimeron, mesepisternum, metepisternum, sternum clothed with narrow, elongate, ochroleucus scales. Elytra: length: 3.7–4.0 mm (mean ¼ 3.85 mm, n ¼ 2); striae deep with large punctures and small, narrow, elongate, testaceous scales; humeri prominent, rounded; intervals broad, flat; intervals 1 and 2 with vittae of ochroleucus scales remaining scales testaceous with two fascia of ochroleucus scales before and after midpoint; somewhat convex in lateral view; crosshatched setae short, ochroleucus. Legs: length: hind femur 2.3–2.5 mm (mean ¼ 2.4 mm, n ¼ 2), tooth small; profemoral tooth medium, mesofemoral tooth smaller than hind tooth; base narrow with small clava; all femora clothed with narrow, elongate, ochroleucus scales; tibiae feebly sinuate with distal comb of elongate scales ascending up 1/4 of tibia, pro-, meso- and metauncus small. Abdomen: sternite 2 longer than 1 behind coxal cavity, ascending to 3; sternites 1 and 2 with shallow median declivity; sternite 3 longer than 4, combined longer than 5; sternite 5 with apical lateral long seta-like scales; all sternites clothed with decumbent to suberect narrow, elongate, ochroleucus to white scales. Pygidium : small-sized with elongate fuscous seta-like scales. Genitalia: not dissected.

Female: length: 6.5 mm (n ¼ 1). width: 3.0 mm (n ¼ 1). Rostrum: length: 4.1 mm (n ¼ 1); 0.63 as long as body, frons 0.18 as broad as head across eyes. Antennae: length: scape: 1.5 mm. funiculus: segment one 0.55 mm, two 0.35 mm, three 0.25 mm, four 0.2 mm, five 0.2 mm, six 0.2 mm, seven 0.15 mm, club 0.55 mm, funicle 1.9 mm (n ¼ 1); scape 0.79 as long as funicle. Thorax: length: 1.5 mm (n ¼ 1). width: 2.1 mm (n ¼ 1); 0.71 as long as broad. Elytra: length: 4.1 mm (n ¼ 1). Legs: length: hind femur 2.6 mm (n ¼ 1); pro-, and mesouncus small, metauncus wanting. Genitalia: spermatheca: ramus erect knob; collum, broad base to acute round apex; cornu, broad at base, evenly tapered to acuminate apex (n ¼ 1) ( Fig. 51 ).

Remarks. This species is similar in form to C. megadens n. sp., but can be distinguished by the narrow scutellum and fascia on the elytra.

Etymology. The specific epithet non-prominent mesosternal intercoxal process ‘‘careo’’ a Latin adjective for ‘‘not’’ and ‘‘parvus’’ the Latin adjective for ‘‘little.’’

Figures

Fig. 51. Curculio careoparvus, spermatheca, lateral aspect. Figs. 52–55. Curculio brevidens. 52) Spermatheca, lateral aspect; 53) median lobe, dorsal aspect; 54) median lobe, lateral aspect; 55) median lobe, apex. Fig. 56. Curculio wangi, spermatheca, lateral aspect. Figs. 57–59. Curculio bullabrevis. 57) Median lobe, dorsal aspect; 58) median lobe, lateral aspect; 59) median lobe, apex. Figs. 60–62. Curculio hobbsi. 60) Median lobe, dorsal aspect; 61) median lobe, lateral aspect; 62) spermatheca, lateral aspect.