Glenea changchini, Lin, Meiying & Lin, Wenhsin, 2011

Lin, Meiying & Lin, Wenhsin, 2011, Glenea changchini sp. nov. from Yunnan of China (Coleoptera: Cerambycidae: Lamiinae: Saperdini), Zootaxa 2987, pp. 13-17 : 13-14

Glenea changchini sp. nov.

( Figs 1–8 )

Description (based on three males): Male: length: 21.8–24.0 mm, humeral width: 6.2–6.7 mm. Body dark violet. Head violet-black, with two light blue pubescent stripes on occiput, which extend around superior eye lobes and antennal tubercles. Frons with inferior eye lobes surrounded with light blue pubescent stripes which cross genae and reaching clypeus; tempora covered with light blue pubescence. Antenna red brown, basal three antennomeres darker and with light blue pubescence on ventral and inner sides, others with a faint grayish pubescence. Prothorax dark violet, pronotum with three light blue pubescent stripes (one median and one on each lateral margin) and each side with a large white patch around coxa (propleura pubescent). Scutellum with white or light blue pubescence. Elytron dark violet, with 9–11 snow-white or light blue markings (named in Fig. 3 ); A, B at basal fourth and C at apical fourth are more stable than others in both position and shape; D and d are smaller and sometimes absent; E-e, F-f and G-g forming oblique lines and sometimes confluent; e, f and g are quite variable in shape. Ventral surface reddishviolet; with several whitish maculae: mesepisternum, mesepimeron and most of metepisternum whitish pubescent; two patches on each side of apical abdominal segments 1–4; other parts with fulvous brown pubescence. Femora reddish-brown and glossy; tibiae and tarsi reddish-brown and with hair and pubescence, especially apical part of hind tibiae and tarsi densely covered with fulvousbrown hair and pubescence.

Head slightly narrower than prothorax. Eyes medially emarginate, inferior eyelobes two times as high as genae below. Antennae relative slender, longer than body (9th antennomere reaching elytral apex); antennomere ratio: male: 25:5:40:30:30:27:27:23:23:22:30. Last antennomere ( Fig. 4 ) subdivided at apical third. Prothorax densely punctured, slightly narrower from base to apex. Elytron densely and coarsely punctured, gradually narrower apically, with 2 lateral carinae, neither from base nor reaching apex; apex transversely truncated, rounded at inner angle and with a very minute and scarcely perceptible tooth at outer angle. Legs slender, middle tibiae hardly grooved, hind femur reaching fourth abdominal segment, first hind tarsal segment subequal to following two segments combined. Tarsal claws simple.

Male genitalia ( Figs 5–7 ): Tegmen length about 3.4 mm; lateral lobes stout, each about 0.7 mm long and 0.3 mm wide, with a curved ridge at base; apex with fine setae shorter than half of lateral lobes; basal piece well-developed and not bifurcated; median lobe plus median struts slightly curved ( Fig. 5 b), obviously longer than tegmen (22:17); median struts more than half of whole median lobe in length; dorsal plate shorter than ventral plate; apex of ventral plate ( Fig. 6 ) rounded; median foramen elongated, pointed at apex (angle about 30 degree); internal sac more than twice as long as median lobe plus median struts, with four pieces of basal armature (located at middle of median struts), two bands of supporting armature (very weak), and three rods of endophallus, rods subequal, each about 3.8 mm, longer than tegmen. Tergite VIII ( Figs 8 a, 8c) much broader than long, apex truncated to slightly emarginated, with moderate long setae at sides, setae in the middle shorter and sparser. Sternite IX subequal to ringed part of tegmen in length.

Female unknown.

Diagnosis. Though the external appearance is similar to G. diana , G. paradiana and G. subsimilis , this species differs not only by the pubescent markings, but also in the following characters: elytral apex rounded at the inner angle (usually bidentate in Glenea ), claws simeple, and basal armature located at middle of median struts (usually located out of median lobe in other Glenea spp.).

Etymology. The species is named after Mr. Changchin Chen ( Tianjin, China), who offered the authors lots of material, support and kind help in various ways.

Remarks. The species is similar to subgenera Rubroglenea (pronotal puncturation and elytral apex different) and Macroglenea (male claw, genitalia and elytral apex different). The genus Glenea , as considered here, includes a diverse, and probably multi-generic assemblage of species. For example, some Heteroglenea species were previously placed in Glenea (Lin et. al, 2009). To clarify the subgeneric and generic relationships, a world-wide study of Glenea is required.

Distribution. China: Yunnan.

Material examined. Holotype (23.0 mm long), male, China, Yunnan prov., Jinping county, Ma’andi, Biaoshuiyan (22°44'N 103°29'E), alt. 1350 m, 2010. V.13, leg. Xiaodong Yang ( IZAS, IOZ (E) 1859451). Paratypes: 1 male, Yunnan prov., Jinping county, Ma’andi, Biaoshuiyan (22°44'N 103°29'E), alt. 1350 m, 2010. V.15, leg. Wenhsin Lin ( CCCC); 1 male (21.8 mm long), same data ( IZAS, IOZ (E) 1859452).

Correction. In the paper “Eight species of the genus Glenea Newman, 1842 from the Oriental Region, with description of three new species ( Coleoptera : Cerambycidae : Lamiinae : Saperdini ). Zootaxa, 2155: 1–22”, there is an error which needs correction. In Figures 25–26 on page 12, ‘ subrubricollis ’ in 25L and 26L should read ‘ nigrorubricollis ’. We thank Dr. Carolus Holzschuh (Villach, Austria) for bringing this to our attention.

Figures

FIGURES 1 – 2. Glenea changchini sp. nov. habitus. 1. holotype, male, from Yunnan; 2. paratype, male, from Yunnan. a. dorsal view, b. ventral view, 1 f. frontal view of head. Scale 2 mm.

FIGURES 3 – 4. Right elytron and last antennomere of Glenea changchini sp. nov. 3. elytral markings of right elytron, spots named for description; 4. last antennomere, showing the subdivided point at apical third.

FIGURES 5 – 8. Terminalia of Glenea changchini sp. nov. 5 – 7. male genitalia. 6. showing apex of ventral plate and lateral lobes of tegmen; 7. rods of endophallus; 8. tergite VIII and sternites VIII & IX. a. ventral view, b. lateral view, c. dorsal view. Scale 1 mm.