Curculio vivianae Pelsue and Zhang

Frank W. Pelsue, Jr. & Zhang, Runzhi, 2000, A Review Of The Genus Curculio L. From China With Descriptions Of New Taxa. Part I (Coleoptera: Curculionidae: Curculioninae: Curculionini), The Coleopterists Bulletin 54 (2), pp. 125-142 : 136-137

Curculio vivianae Pelsue and Zhang , new species

Figs. 5, 18–19, 29– 31 Holotype. China. Xishuangbanna : male[Yunnan /Xishuangbanna/900 M/ 26 September 1957 / L. Zang] ( IZAS)

Paratype. (1) China. female[Yunnan \ Xishuangbanna \900 M\ 26 September 1957 \ L. Zang] ( FWPC)

Recognition Characters. Oval; rostrum abruptly emerging from head in male and female; second segment of funiculus longer than first segment; hind femur exceeds apex of abdomen; color fuscopiceous with dirty white elongate decumbent scales; mesosternal intercoxal process prominent; female slightly larger than male.

Description. Male. Length: 5.6 mm. Width: 2.8 mm. Head. Moderately broad, slightly convex; punctures small set in rugae, vestiture of small, narrow, elongate, decumbent ocherous scales; macula of small decumbent white scales under eyes; eyes large, oval, finely faceted; frons 0.18 as broad as head across eyes; small interocular foveae; short median carina to base of rostrum. Rostrum. Length: 3.7 mm, 0.66 as long as body; cylindrical, sides almost parallel, smooth, glabrous; abruptly emerging from head; large oval punctures extending down to insertion of antennae; gradually arced from base to apex; scrobe lateral; scape inserted at midpoint. Antennae. Length: Scape 1.7 mm; funicular segment one 0.3mm; two 0.4 mm; three 0.2 mm; four 0.2 mm; five 0.25; six 0.15; seven 0.2 mm; club 0.55 mm; funicle 1.7 mm, as long as scape; essentially glabrous with long narrow setae toward apex of each segment; club elongate compact; not as long as segments five through seven combined, vestiture velvety with few erect setae. Thorax. Length 1.5 mm; width 2.1 mm, 0.72 as long as broad; dorsally sides parallel for over half its length then broadly rounded to constriction; sides impressed laterally, punctures set in crenulations with narrow, elongate, decumbent, dirty white scales; base straight with indication of basal ridge; disc convex in lateral view, punctures small, close together with longer, narrow, elongate, decumbent, dirty white scales; anterioventral macula of broad clavate, decumbent, ocherous scales; mesosternal intercoxal process feebly prominent; scutellum small, longer than broad, set in declivity, clothed with short decumbent dirty white scales; mesepimeron clothed with clavate, decumbent, dirty white scales on dorsal margin; mesepisternum clothed with clavate, decumbent, dirty white scales; metepisternum clothed with narrow, elongate, decumbent, dirty white scales; procoxae clothed with short, clavate, white scales. Elytra. Length: 3.5 mm. Striae deep, punctures with narrow, elongate, decumbent, white scales; shallow declivity around scutellum; humeri prominent; intervals broad, flat and clothed with long narrow, decumbent, dirty white scales with two feeble fascia; disc convex in lateral view; interval one with stout, elongate, crosshatch semierect setae, dirty white to testaceous in last one third of length. Legs. Length of hind femur 2.5 mm, exceeds apex of abdomen, clavate with moderate sized wedge shaped tooth; pro­ and mesofemoral tooth small; vestiture of elongate, dirty, white, decumbent scales; tibia straight; pro­, meso­, and metauncus large, each about same length as long as tarsal claw. Abdomen. Derm fuscous; sternite two longer than one behind coxal cavity; sternite two ascending to three; sternites three and four combined longer than five; sternite five emarginate apically lacking declivity; all sternites clothed with elongate, decumbent, dirty white scales. Pygidium . Exposed with elongate ocherous setae. Genitalia. Median lobe 1.20 mm in length 0.20 mm in width five times as long as broad, sides parallel to near apex ( Fig. 29); endophallus yolk shaped; phallotreme emarginate; apex turned down and over, slightly narrowed broadly rounded to nub of a point.

Female. Length: 6.5 mm. Width: 3.5 mm. Rostrum. Abruptly emerging from head, missing for most of its length. Prothorax. Length 2.0 mm. Width 2.7 mm. Pygidium . not visible. Genitalia. Spermatheca: Ramus oblong rounded, collum elongate with distal knob, cornu narrowed with turned up apices ( Fig. 31).

Plant Associations. Unknown.

Distribution. China. Yunnan Province, Xishuangbanna, 900 M, 26 September 1957, L. Zang. Two specimens examined.