Curculio richardi 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 : 495-496

Curculio richardi Pelsue and Zhang , New Species

Figs. 31–32 , 80–81

HOLOTYPE. China. Hainan: Male [ China / Hainan /Jiansengling/750 M/ 23 March 1980 / S. Wang] ( IZAS).

PARATYPE. (1) China. male[ China / S. Kiangsi (Jiangxi)/Wong­sa­shue/ 08 July 1936 / J. L. & M. Gressitt] ( BPBM) .

Recognition Characters. Small­sized, oval; derm piceous; scape as long as funicular segments 1–6; antennal club as long as funicular segments 5–7; mesosternal intercoxal process feeble; dorsal vestiture of mixed narrow, elongate, testaceous and short, clavate, white scales giving a salt and pepper appearance.

Description. Male: Length 3.0 mm. Width: 1.6 mm. Head: Moderate­sized; punctures small, oval, glabrous; ventral of rostrum, macula of short, clavate, white scales with truncate apices; eyes large, rounded, finely faceted; frons narrow, 0.15 as wide as head across eyes, glabrous. Rostrum: Length: 1.7 mm; 0.56 as long as body; subcylinderical; three dorsal carinae extending from frons merging together before antennal insertion, elongate, oval, punctures set between the carinae; smooth beyond antennal insertion with small sparse punctures; almost straight to antennal insertion, gradually arced to apex; scrobe ventral; scape inserted in apical half. Antennae: Length: Scape 0.80 mm; Funiculus: segment one 0.2 mm, two 0.2 mm, three 0.1 mm, four 0.1 mm, five 0.1 mm, six 0.1 mm, seven 0.075 mm, club 0.3 mm; funicle 0.875 mm; scape 0.91 as long as funicle; derm fuscous; clothed with semierect testaceous seta­like scales toward apex of each segment; club oval, compact, with short, fine pile, as long as funicular segments 5–7. Thorax: Length: 0.9 mm. Width: 1.2 mm; 1.75 as long as broad; dorsally base almost as broad as elytra, tapering to apical constriction; disc in lateral view slightly convex; punctures small, ridged, one or more setae like scales originating from puncture; scales on disc mixed with narrow, elongate, testaceous and short, clavate, white scales with truncate apices, laterally broader, clavate, truncate, white scales; base somewhat sinuate; mesosternal intercoxal process feeble, clothed with clavate, white scales; scutellum medium­sized, slightly longer than broad, clothed with narrow, elongate, white scales; mesepimeron dorsally clothed with dense, clavate, truncate, white scales, becoming sparser towards the venter; mesepisternum clothed with broader, clavate, truncate, white scales; metepisternum narrow, broadening apically, clothed with narrow, elongate, white scales; procoxae clothed with short, clavate, white scales. Elytra: Length: 1.5 mm. Striae narrow, rather deep, with small punctures; shallow scutellar declivity; humeri moderate, rounded; intervals broad, flat with confused pattern of narrow, elongate, testaceous and broader, clavate, white scales; disc flat in lateral view; crosshatched setae semierect not prominent and testaceous. Legs: Length of hind femur 1.5 mm; exceeds apex of abdomen by width of femoral club; tooth medium­sized; pro­ and mesofemoral tooth small; hind femoral base narrow broadening to moderate­sized club; clothed with narrow, elongate, white scales; tibiae almost straight; metauncus small, pro­ and mesouncus medium as long as tarsal claw. Abdomen: Sternite 1 longer than 2 behind coxal cavity; sternite 2 ascending to 3, sternites 3 and 4 equal in length as long as 5 combined; sternite 5 with median declivity; all sternites clothed with short, clavate, white scales, becoming more elongate on sternite 5. Pygidium: Moderate , clothed with elongate, white, seta­like scales. Genitalia: Median lobe of aedeagus 0.3 mm in length, 0.2 mm in width, dorsally margins narrowed basally expanding to bifurcate brush like appendages; base of aedeagal apodeme highly sclerotized 0.9 mm in length ( Figs. 80–81 ).

Distribution. China: Hainan Province, Jianfengling, 750 m, 23 March 1980, S. Wang; S. Kiangsi (Jiangxi), Wong­sa­shue, 8 July 1936, J. L. & M. Gressitt. Remarks. This species distinct from remainder of group and can be distinguished by definitive male genitalia. Named for senior author’s son Richard.

Figures

Figs. 31–32. Curculio richardi male, dorsal and lateral habitus, holotype.

Figs. 73–81. Curculio chevrolati 73) median lobe, dorsal aspect; 74) median lobe, lateral aspect; 75) median lobe, apex. Figs. 76–79. C. marioi 76) median lobe, dorsal aspect; 77) median lobe, lateral aspect; 78) median lobe, apex; 79) spermatheca, lateral aspect. Figs. 80–81. C. richardi 80) median lobe, dorsal aspect; 81) median lobe, lateral aspect.