Curculio krissiae Pelsue and Zhang

Frank W. Pelsue, Jr. & Zhang, Runzhi, 2000, A Review Of The Curculio From China With Descriptions Of New Taxa. Part II. The Curculio Alboscutellatus Group (Curculionidae: Curculioninae: Cyrculionini), The Coleopterists Bulletin 54 (4), pp. 467-496 : 481-482

Curculio krissiae Pelsue and Zhang , New Species

Figs. 7–8 , 44–46

HOLOTYPE. China. Xishuangbanna : male [China/ Yunnan /Xishuangbanna/ 30 May 1958 / 750–800 m / S. Wang]( IZAS).

Recognition Characters. Medium­sized, oval, moderately robust; derm fuscorufous; rostrum 0.55 as long as body; frons 0.3 as wide as head across eyes; hind femoral tooth medium­sized; hind femur lacking proximolateral sulcus; pronotum with feeble dorsocentral macula of white scales; elytra with fascia of white scales basally, oblique fascia at midpoint across intervals 1, 3–9 of narrow, elongate, white scales, interval 1 with vitta of white scales in distal third.

Description. Male: Length: 4.8 mm. Width: 2.6 mm. Head: Small­sized, moderately convex; punctures small, with narrow, elongate, ochroleucus scales dorsally and ventrally; eyes large, finely faceted, almost contiguous to anterior margin of prothorax; frons broad, 0.30 as wide as head across eyes; clothed with larger, narrow, elongate, ochroleucus scales between eyes; interocular fovea lacking. Rostrum: Length: 2.6 mm, 0.55 as long as body; cylindrical, margins subparallel to insertion of scape, then gradually narrowing to slightly expanded apex; straight to antennal insertion gradually curving to apex; dorsal carina from head to antennal insertion; punctures oval between median carina and dorsal margin of scrobe with clavate, ochraceous scales, from frons to antennal insertion pointing dorsally; scrobe ventral with a few scales near apex; punctures from antennal insertion to apex small, round; scape inserted in apical half. Antennae: Length: Scape 1.3 mm; Funiculus: segment one 0.35 mm, two 0.3 mm, three 0.15 mm, four 0.15 mm, five 0.1 mm, six 0.1 mm, seven 0.15 mm, club 0.6 mm; funicle 1.3 mm; scape as long as funicle; clothed with narrow, elongate, ochroleucus scales, few erect testaceous seta­like scales near apex of each segment; club elongate, compact, oval, segments 1–3 subequal in length, 4 short, clothed with ochroleucus velvety pile, and few erect setae; club longer than funicular segments 4–7, but not as long as segments 3–7. Thorax: Length: 1.5 mm. Width: 2.0 mm. 0.75 as broad as long; disc with margins subparallel, gradually rounded to constriction; feebly convex in lateral view; disc with median carina indistinct; pleuron subimpressed behind constriction; clothed dorsally and laterally with narrow, elongate, ochroleucus scales; anterolaterally and anteroventrally with macula of white scales; disc with feeble anterocentral macula of white scales; base sinuate, with indication of basal carina; median basal declivity to scutellum; mesosternal intercoxal process prominent, clothed with ochroleucus scales; scutellum large, longer than broad, clothed with white scales; mesepimeron densely clothed with clavate, white scales dorsally, and ochroleucus scales along ventral margin; mesepisternum and metepisternum clothed with clavate, ochroleucus scales; metasternum with lateral convex nodule proximal to metacoxae. Elytra: Length: 2.9 mm. Striae narrow, of moderate depth with small, narrow, elongate, ochroleucus scales; base sinuate; humeri moderately prominent, angular and rounded; scutellar declivity; intervals flat, densely clothed with narrow, elongate, ochroleucus scales, with a white fascia across intervals 1–6, distad of base; feeble fascia of white scales at midpoint; interval 1 with vitta of white scales distad of midpoint to apex; crosshatched setae short, erect, testaceous. Legs: Length of hind femur 2.4 mm, tooth medium­sized, acute; all femora approximately same length; pro­ and mesofemoral tooth small, acute; all femora moderately clavate, base moderately robust; hind femur lacking or with feeble proximolateral sulcus from base to club; all femora clothed with narrow, elongate, ochroleucus scales in basal two thirds, with white scales in apical third; pro­ and mesofemur lacking white macula at base; tibiae sinuate; pro­ and mesouncus large longer than tarsal claw, metauncus as long as tarsal claw; lobe of tarsal segment 3 almost as long as segment 4. Abdomen: Sternite 1 not as long as 2 behind coxal cavity, with broad median shallow declivity; sternites 3 and 4 equal in length; sternite 5 as long as 3 and 4 combined; sternite 1 with lateral macula of ochroleucus scales; sternites 2–4 with lateral macula of clavate, white scales, all sterna invested medially with small, clavate, ochroleucus scales. Pygidium: Small , clothed with elongate, white, seta­like scales. Genitalia: Median lobe of aedeagus 0.9 mm long; 0.3 mm wide, margins parallel of even thickness past bend, arcing down abruptly to median apex somewhat bluntly rounded, and deflected to right; apodeme 1.0 mm long ( Figs. 44–46 ).

Distribution. China: Yunnan Province, Xishuangbanna, 750–800 m, 30 May 1958, S Wang.

Remarks. This species similar to C. marioi n. sp., but can be separated by shorter rostrum, lack of a cross shaped macula on the prothoracic dorsum, short or feeble vitta on interval one of elytra, and male genitalia. This species is named in honor of senior author’s granddaughter Krissa.

Figures

Figs. 7–12. 7–8) Curculio krissiae male, dorsal and lateral habitus, holotype; 9–10) C. alboscutellatus male, dorsal and lateral habitus; 11–12) C. simius spretus male, dorsal and lateral habitus.

Figs. 33–46. Curculio jilinensis 33) median lobe, dorsal aspect; 34) median lobe, lateral aspect; 35) median lobe, apex; 36) spermatheca, lateral aspect; Figs. 37–39. C. gressitti 37) median lobe, dorsal aspect; 38) median lobe, lateral aspect; 39) median lobe, apex. Figs. 40–42. C. tonkinensis 40) median lobe, dorsal aspect; 41) median lobe, lateral aspect; 42) median lobe, apex; 43) spermatheca, lateral aspect. Figs. 44–46. C. krissiae 44) median lobe, dorsal aspect; 45) median lobe, lateral aspect; 46) median lobe, apex.