Hainokisaruzo wuyishanensis Huang, Yoshitake & Zhang

Huang, Junhao, Yoshitake, Hiraku, Zhang, Runzhi & Ito, Motomi, 2008, Two new species of Hainokisaruzo Yoshitake & Colonnelli from China, with a checklist of the species of the genus (Coleoptera: Curculionidae: Ceutorhynchinae), Zootaxa 1776, pp. 59-68 : 60-63

Hainokisaruzo wuyishanensis Huang, Yoshitake & Zhang , sp. n.

( Figs. 1–3 , 7–14 )

Diagnosis. This species can be distinguished from its congeners by the following traits: 1) forehead as wide as the base of rostrum; 2) rostrum slender, 1.63 times (male) or 1.94–2.19 times (female) longer than prothorax; 3) elytra mostly covered with sparse, shiny, brownish, narrow scales; 4) three elytral bands composed mainly of narrow white scales, with the apical band completely separated from the postmedian band; 5) femoral teeth indistinct; 6) apices of mid and hind tibiae strongly mucronate in male; 7) male ventrite V displaying a large, deep, semicircular concavity on disc; 8) pygidium finely punctured, lacking carina and evenly and shallowly concave in middle (male) or simple and lacking a concavity (female); 9) spiculum gastrale robust and bent leftward in dorsal view.

Description. Male. Dimensions: LB: 2.05 mm, LR: 0.87 mm, WP: 0.70 mm, LP: 0.53 mm, WE: 1.23 mm, LE: 1.44 mm (N = 1 for all measurements). Habitus as in Figs. 1–2 .

Vestiture dark brown in general appearance. Rostrum, legs and pygidium tinged with red; antennae and tarsi paler. Elytral suture blackish. Body surface evenly covered with yellowish brown powder in life. Head moderately covered with white narrow scales that are weakly dilated toward apex. Rostrum covered with fine hairs in basal 2/3. Prothorax covered mainly with narrow or elliptical, white scales; dorsum with a narrow, white, median stripe running from base to apical margin; stripe composed mostly of narrow scales except for basal part, which is composed of elliptical scales; dorsal prominences furnished with short, narrow, brownish scales; each side displaying a white stripe of elliptical scales. Elytra moderately densely covered with shiny, narrow, brownish scales, a reverse subtriangular patch of white, lanceolate scales in basal part between intervals I–IV, with three white, narrow bands in antemedian, postmedian and apical portions; each band composed of sparse, white, narrow scales mingled with elliptical scales; postmedian band entirely separated from apical band; each interval containing 1–3 rows of scales. Legs moderately covered with narrow to lanceolate, white scales; corbel of all tibiae fringed with yellowish-gray setae. Meso- and metasterna laterally moderately densely covered with narrow, elliptical, white scales; centre covered mainly with white, acicular to lanceolate scales, lacking hairs; meso- and metasternal receptacles nearly naked. Venter ( Fig. 3 ) moderately densely covered with white, elliptical to lanceolate scales; ventrite I moderately furnished with minute hairs on disc; on ventrite II sparsely mingled with minute hairs in middle; ventrite V mostly densely covered with suberect slender hairs, bearing a tuft of long hairs on each side of apical margin. Pygidium moderately covered with yellowish-gray fine hairs.

Head finely and closely punctured; forehead as wide as base of rostrum. Rostrum slender, 1.63 times longer than pronotum, evenly and moderately curved; dorsum moderately punctured; punctures becoming minute and indistinct toward apex. Antennae inserted before middle of rostrum; scape slender, 1.45 times longer than funicle, 11.93 times longer than wide, produced into a short lamina at apex; length ratio of funicular segments I: II: III: IV: V: VI: VII = 2.75: 1.88: 1.35: 1.10: 1.05: 1.00: 1.00, width ratio of funicular segments I: II: III: IV: V: VI: VII = 1.68: 0.82: 0.82: 0.79: 0.96: 1.00: 1.00; club subrhomboidal, not constricted at base.

Prothorax subconical, 0.37 times as long and 0.57 times as wide as elytra, 1.32 times wider than long, widest at base, gradually and straightly narrowing toward subapical constriction; dorsum coarsely punctured, with a shallow median sulcus, tubercules roundly and weakly prominent; basal margin weakly bisinuate. Elytra 2.70 times longer and 1.75 times wider than pronotum, 1.17 times longer than wide, widest at humeri, subparallel in basal 1/3, then moderately convergent toward subapical calli; striae relatively deep; intervals evidently wider than striae; prominences less-developed, moderately granulate. Legs slender. Femora clavate, each armed with a vestigial tooth; fore femora slightly stouter than middle or hind femora. Fore tibiae simple at apex, lacking mucrones; corbels short, simple and not dilated outward. Middle tibiae strongly mucronate at apex; corbels moderate in length, slightly dilated outward. Hind tibiae slightly dilated outward. Tarsi with segment V slender; claws obtusely toothed.

Ventrites I and II ( Fig. 3 ) shiny and moderately densely punctured; ventrite I widely and shallowly concave on disc; ventrite II 0.58 times as long as I, 1.40 times longer than III, faintly concave on disc. Ventrites III–V opaque due to dense minute punctures; ventrite V 2.69 times wider than long, shorter than III and IV taken together, with a large, deep, semicircular concavity on disc, truncate at apex. Pygidium narrow, 3.88 times wider than long, opaque, finely punctured, evenly and shallowly concave in middle; upper flange downward arcuate on each side. Sternite IX ( Fig. 9 ) wider than long; spiculum gastrale relatively robust, slightly longer than aedeagal body or its apodeme, bent leftward. Tegmen ( Fig. 10 ) with a slender apodeme, nearly half as long as diameter of tegminal ring, subparallel along entire length. Aedeagal body ( Figs. 7, 8 ) slender, slightly expanded near base, subparallel in basal 3/4, roundly expanded near apex and then rapidly constricted and acutely projected toward apex, relatively thick with a slight but even downward curve in profile. Endophallus ( Fig. 7 ) with a pair of slender sclerites near base, many dentiform sclerites in middle and a longitudinal spiculate field in median portion.

Female. Dimensions: LB: 1.95–2.13 mm (mean, 2.04 mm). LR: 0.92–0.93 mm (0.92 mm). WP: 0.80–0.81 mm (0.81 mm). LP: 0.43–0.47 mm (0.45 mm). WE: 1.26–1.30 mm (1.28 mm). LE: 1.30–1.46 mm (1.40 mm). N = 3 for all measurements.

Rostrum much more slender than in male, 1.94–2.19 times longer than prothorax. Antennae inserted behind middle of rostrum. Prothorax 1.71–1.89 times wider than long. Elytra 1.02–1.16 times longer than wide. Tibiae simple, not mucronate on all legs. Ventrites I and II moderately inflated, shiny, and moderately punctured. Ventrite V wider, 3.42 times wider than long, slightly inflated, without concavity. Pygidium 1.78 times wider than long and slightly convex. Ovipositor ( Fig. 13 ) with robust hemisternites, nearly three times longer than styli; styli apicolaterally inserted, moderate in length, nearly two times longer than wide. Tergite VIII ( Fig. 11 ) sparsely setiferous along apical margin. Sternite VIII ( Fig. 12 ) furnished with several minute setae; arms robust, nearly 1/3 as long as apodemes, nearly as long as hemisternite and stylus combined, slightly basally fused, with inner margin slightly divergent; apodemes slender; moderately divergent near apex. Spermatheca ( Fig. 14 ) with cornu robust, long, strongly curved, weakly attenuate; collum evenly and moderately convex; ramus less-marked; insertions of duct and gland close to each other. Otherwise practically Type material. Holotype male, China, Fujian, Wuyishan Mts., Mt. Huanggangshan, 27°49'N, 117°46'E, 27 VI. 1980, S. Qi [IOZ(E)896437]. Paratypes. China, Fujian, Wuyishan Mts.: 1 male, same data as the holotype [IOZ(E)896438]; 1 female, Jianyang, Guilin, 270 m, 27°08'N, 117°08'E, 11 IV. 1960, Y. Zuo [IOZ(E)896434]; 1 female, Jianyang, 27°20'N, 118°06'E, 12 IV. 1965 [IOZ(E)896435]; 1 female, Sangang, 27°44'N, 117°40'E, 29 VI. 1982, S. Qi [IOZ(E)895837].

Distribution. Southeastern China (Fujian Province).

Etymology. The species is named after its type locality.

Figures

FIGURES 1 – 6. Hainokisaruzo spp., male holotypes. 1 – 3, Hainokisaruzo wuyishanensis, sp. n. 1, dorsal habitus. 2, lateral habitus. 3, venter. 4 – 6, Hainokisaruzo fulvus, sp. n. 4, dorsal habitus. 5, lateral habitus. 6, venter. Scale: 0.50 mm.

FIGURES 7 – 14. Male and female terminalia of H. wuyishanensis, sp. n. 7 – 10, male. 7, aedeagus, dorsal view. 8, aedeagus, lateral view. 9, sternite IX. 10, tegmen. 11 – 14, female. 11, tergite VIII. 12, sternite VIII. 13, hemisternite and stylus. 14, spermatheca. Scale: 0.10 mm.