Pseudoechthistatus acutipennis Chiang, 1981

Bi, Wen-Xuan & Lin, Mei-Ying, 2016, A revision of the genus Pseudoechthistatus Pic (Coleoptera, Cerambycidae, Lamiinae, Lamiini), ZooKeys 604, pp. 49-85 : 56-58

Taxon classification Animalia Coleoptera Cerambycidae

Pseudoechthistatus acutipennis Chiang, 1981 Figures 6, 20, 28, 32, 44, Map 1

Pseudoechthistatus acutipennis Chiang, 1981: 80, 84, pl. 1, fig. 7. Type locality: Mt. Omei, Sichuan, China. Type depository: SWU.

Pseudoechthistatus acutipennis : Chiang et al. 1985: 104, pl. VII, fig. 111.

Pseudechthistatus (sic) acutipennis : Hua 2002: 227; Hua et al. 2009: 246, 390, pl. CIX, 1252; Löbl and Smetana 2010: 286.

Type material examined.

Holotype (Fig. 20), female, "Sichuan Emeishan Jiulaodong / 1962.VII.9 / Chen Li-Juan et al.", " Pseudechthistatus / acutipennis sp. n. / det. Chiang Shu-Nan 1978", “Holotype” [red label] examined through two photographs provided by Li Chen from SWU, 2014.

Additional material examined.

1 female, Sichuan, Emeishan, Jiulinggang, 1900 m, 2014.VIII.7, leg. De-Yao Zhou (CZDY).

Redescription.

Female (Fig. 6). Body length 17.0-18.0 mm, humeral width 5.2-5.4 mm. Body brownish black; head, pronotum sparsely covered with pale and tawny pubescence, ventral surface with intermixed pale and grayish yellow pubescence forming small spots scattered throughout. Antennal scape, pedicel and basal half of 3rd antennomere with sparse pale pubescence, 4th to 8th antennomeres indistinctly with the same pubescence at base, remainder with fine brown pubescence. Pronotum with a pair of longitudinal tawny bands on each side of disk, slightly shorter than one-third of pronotal length. Scutellum clothed with tawny pubescence, except a median glabrous line. Elytron with tawny pubescence forming the subbasal annular marking and some small spots sparsely scattered throughout; with the same pubescence forming the middle band, which moderately oblique, widely interrupted near lateral margin, transversely near suture; remainder with very fine dark brown pubescence. Legs (Fig. 32) moderately clothed with intermixed pale and yellowish pubescence interrupted by scattered glabrous spots.

Body elongate, oblong oval. Head (Fig. 28) with frons densely and coarsely punctured; lower eye lobe 1.2 times as long as width, 0.8 times as long as gena. Antennae 1.2 times as long as body length, surpassing elytral apex by three antennomeres; 3rd antennomere 1.5 times as long as scape, ca. 1.4 times as long as 4th antennomere; scape coarsely punctured; scape to 4th antennomere sparsely fringed beneath. Pronotum subequal in length and basal width, lateral spine short, slightly thickened at base, with acute apex; metasternum 1.5 times as long as mesosternal length. Elytra ca. 1.5 times as wide as pronotal base, 2.1 times as long as humeral width; subparallel-sided in basal one-third, very weakly widened at middle, then moderately convergent toward strongly acute apices; disk densely and coarsely punctured, moderately granulated on basal half and near humerus; subbasal tubercle moderately developed and raised, ca. 1.2 times as wide as scutellar width. Hindwings (Fig. 44) reduced, 1.3 times as long as elytral length. Legs moderately long and slender, metatibiae exceeding elytral apices at basal one-third.

Male. Unknown.

Diagnosis.

Body and elytra brownish black, very finely pubescent (besides the tawny pubescent markings); pronotal longitudinal bands reduced, shorter than one-third of pronotal length; elytral middle bands widely interrupted near lateral margin, preapical stripe absent; elytral apices strongly acute, disk densely and coarsely punctured; hindwings reduced.

Distribution

(Map 1). China: Sichuan.