Curculio deceptor panthaicus (Heller)

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 : 129-131

Curculio deceptor panthaicus (Heller)

Figs. 8 , 10–11 , 24–26

Balaninus deceptor Marshall 1919

Balaninus deceptor panthaicus Heller 1927:188–189 .

Yunnan ( Donchier ) and Laos (Coll. Jekel) in Coll. A. Solari. Holotype of Balaninus deceptor Marshall in BMNH.

Recognition Characters. Elongate oval; second segment of funiculus longer than the first; piceous in color with cretaceous macula flanking scutellum; middorsolateral fascia of cretaceous scales on elytra; interval one of elytra with short stiff crosshatched setae like piceous scales in rear quarter with a shorter contiguous vitta of short, truncate, cretaceous scales to apex of elytra; mesepimeron densely clothed with clavate, cretaceous scales, derm piceous.

Description. Male. Length: 3.9–7.0 mm (mean = 5.44). Width: 2.1–3.7 mm (mean = 2.87). Head. Large, round; nude dorsally; punctures small oval; with anterioventral macula of short clavate decumbent cretaceous scales; eyes large finely faceted; frons 0.20 as broad as head across eyes; not as broad as base of rostrum; nude. Rostrum. Length 2.3–4.5 mm (mean = 3.34), 0.62 as long as body; cylindrical, sides subparallel, gradually tapering to apex, gradually emerging from head; nude; with two lateral carina lacking middorsal carina; slightly arced; scrobe ventral; scape inserted past midpoint. Antennae. Length: Scape 1.70 mm; funicular segment one 0.40 mm, two 0.55 mm, three 0.30 mm, four 0.20 mm, five 0.20 mm, six 0.20 mm, seven 0.20 mm; club 0.75 mm; funicle 1.60 mm; scape longer than funicle; vestiture of narrow, elongate, decumbent white scales with few semierect long setae near apices of each segment; club elongate oval, clothed with fine, decumbent, piceous setae with a few longer setae, not as long as funicular segments four through seven combined. Thorax. Length: 1.4–2.1 mm (mean = 1.74). Width: 1.6–2.7 mm (mean = 2.14 mm), 0.81 as long as broad; disc almost as broad as base of elytra, sides subparallel, broadly rounded to constriction; impressed laterally; disc slightly convex in lateral view with basal declivity around scutellum; punctures small, deep; disc nude except for small basolateral macula of clavate, decumbent, cretaceous scales; base somewhat sinuate; mesosternal intercoxal process very prominent, securiform with dorsoanterior corner projected up; scutellum moderate, as broad as long, nude, piceous; mesepimeron densely clothed with clavate, cretaceous scales; mesepisternum nude; metepisternum with posterior macula of clavate, decumbent, cretaceous scales; anterioventral macula of clavate, decumbent, cretaceous scales; Elytra. Length: 2.6–4.4 mm (mean = 3.47); striae deep, punctures with short narrow, decumbent, testaceous setae; humeri prominent, rounded; intervals flat clothed with narrow, elongate, decumbent, piceous scales; macula of clavate decumbent cretaceous scales flank scutellum; middorsolateral fascia on intervals two through ten of clavate, decumbent, cretaceous scales; crosshatch setae on interval one semierect on apical one third sharp and piceous with a linear macula of short clavate decumbent cretaceous scales. Legs. Hind femur length: 2.1–3.4 mm (mean = 2.76 mm), exceeds apex of abdomen, tooth medium, acute apex, with sublateral short apical carina, base with proximolateral sulcus from base to club; pro­ and mesofemoral tooth small; all femora piceous, clothed with narrow, elongate, decumbent, cretaceous scales; tibia straight, clothed with elongate, decumbent, cretaceous scales; pro­, meso­, and metauncus large, longer than tarsal claw; tarsal segments clothed dorsally with elongate, decumbent, cretaceous scales. Abdomen. Sternite one longer than two behind coxal cavity; sternite two ascending to three; sternites one and two with moderately deep central declivity; sternites three and four same length, four with acute apical margin, combined longer than sternite five; sternite five with truncate apical margin and central declivity; sternites one and two clothed with lateral macula of clavate, decumbent, cretaceous scales, short bifid cretaceous scales medially. Pygidium . piceous with proximal fringe of cretaceous setae. Genitalia. median lobe of aedeagus 1.4 mm in length 0.3 mm in width, shorter than apodeme ( Fig. 24 ); sides subparalell, thickened medially, narrowed toward bend forming slot shaped opening; broad apex curved to small nipple at distal apices.

Female. Length: 7.0 mm. Width: 3.8 mm. Rostrum. Length 6.0 mm. Prothorax. Length: 2.1 mm. Width: 3.0 mm. Legs. Hind femur 3.6 mm, exceeding apex of abdomen. Abdomen. Vestiture of sternum with bifid scales ventrally, laterally with broad clavate decumbent cretaceous scales. Spermatheca . Ramus and collum undifferentiated, cornu thick tapering to apices ( Fig. 26 ).

Plant Associations. Unknown.

Distribution. China. Yunnan Province, Xishuangbanna, 650–870 M, 05 May 1958, X. Meng; 01 June 1958, P. Hong; 03–09 September 1958, S. Wang. Four specimens examined, compared with type BMNH.

Figures

Fig. 8. Curculio deceptor panthaicus. Arrow indicates the prominent mesosternal intercoxal process.

Figs. 10–11. Curculio deceptor panthaicus male, habitus dorsal and lateral views.

Figs. 24–26. Curculio deceptor panthaicus. 24) median lobe, dorsal aspect; 25) median lobe, lateral aspect; 26) spermatheca, lateral aspect.