Pseudoechthistatus holzschuhi, Bi, Wen-Xuan & Lin, Mei-Ying, 2016

Bi, Wen-Xuan & Lin, Mei-Ying, 2016, A revision of the genus Pseudoechthistatus Pic (Coleoptera, Cerambycidae, Lamiinae, Lamiini), ZooKeys 604, pp. 49-85 : 68-71

Taxon classification Animalia Coleoptera Cerambycidae

Pseudoechthistatus holzschuhi sp. n. Figures 13, 14, 26, 36, 47, 54, 63, Map 1

Type material.

Holotype: male, "CHINA. Yunnan, Jinping / Fenshuiling / 2311 m 2010.IX.18 / leg. Xiao-Dong Yang" (IZAS, IOZ(E) 1905353). Paratypes (8 males, 11 females): China: 1 female, same data as holotype except “2011.V.22” (CCCC); 1 female, ditto except 2011.V.26" (CCCC); 1 male, ditto except "2011.V.22 / leg. Jia-Hong Lin" (CCCC); 1 male, 1 female, "Yunnan Jinping Fenshuiling / 2010-VI-01 / leg. Wen-Hsin Lin 2250 m" (CJM); 1 female, "Jinping / leg. Zeng Qing-Yao / 1957.V", "Yunnan: Jinping / 1957.V"No. 56, host plant: fallen wood of Quercus sp. (IZAS, IOZ(E) 1905349); 1 female, "CHINA. Yunnan, Pingbian / Daweishan / 2000 m 2012.IX.28 / leg. Xiao-Dong Yang" (CCCC); Vietnam: 1 male, "VIETNAM. Lào Cai prov. / Sapa Mt. / 1600 m 2015.VII / local collector" (CBWX); 2 males 1 female, "May 2015; Vietnam / SAPA Mt. / 1800 m / native col. / Lao Cai" (CTT); 2 males, ditto except "June 2014" (CTT); 1 male, ditto except "June 2015" (CTT); 4 females, ditto except "July 2015" (CTT); 1 female, ditto except "September 2015" (CTT).

Description.

Male (Fig. 13). Body length 17.5-25.4 mm, humeral width 5.4-8.0 mm. Body dark brown; head, pronotum covered with yellowish, tawny and brown pubescence, ventral surface with light brown pubescence forming small spots sparsely scattered throughout. Head with four tawny vittae behind upper eye lobes of which the middle two are narrow and indistinct. Antennal scape and pedicel with sparse light yellowish pubescence; 3rd and 4th antennomeres annulate with light yellowish pubescence at basal one-fourth and becoming indistinct on 5th to 7th antennomeres, remainder with fine brown pubescence. Pronotum with two longitudinal tawny bands on each side of disk and another two longitudinal bands on lateral margins, the dis cal bands longer than two-thirds of pronotal length. Scutellum densely clothed with tawny pubescence. Elytron with pubescence predominantly brick-red, with tawny pubescence forming the subbasal annular marking, a short discontinuous transverse band at basal one-third near suture and some small spots sparsely scattered, becoming denser along suture, with light yellowish pubescence forming the middle band and the preapical stripe; the middle band moderately broad and oblique, interrupted or nearly interrupted at middle, transversely reaching suture; the preapical stripe well developed, moderately broader at base. Legs (Fig. 36) clothed with sparse brown and dense light yellowish pubescence of which the lighter one forming small spots moderately scattered on femora and becoming denser on tibiae.

Body elongate, oblong oval. Head (Fig. 26) with frons sparsely and finely punctured; lower eye lobe subequal in length and width, 0.6 times as long as gena. Antennae ca. 1.5-1.7 times as long as body length, surpassing elytral apex at base of 6th antennomere; 3rd antennomere ca. 1.7 times as long as scape, ca. 1.3 times as long as 4th antennomere; scape coarsely punctured; scape to basal half of 3rd antennomere fringed beneath. Pronotum 1.1 times as long as basal width, lateral spine developed, thickened at base with acute apex; metasternum ca. 1.3 times as long as mesosternal length. Elytra ca. 1.6 times as wide as pronotal base, 1.9 times as long as humeral width; subparallel-sided in basal half, then moderately convergent toward subacute apices; disk sparsely and finely punctured at basal half, becoming shallower posteriorly, sparsely granulated behind humerus, granules hardly reaching basal one-third; subbasal tubercle strongly developed and raised, ca. 1.7 times as wide as scutellar width. Hindwings (Fig. 47) developed, ca. 1.4-1.5 times as long as elytral length. Legs moderately long and slender, metatibiae exceeding elytral apices at basal one-fourth.

Male genitalia (Figs 54, 63). Tergite VIII (Fig. 54a) slightly wider than long, truncated apically and rounded at sides. Tegmen (Fig. 54 c–d) with lateral lobe subparallel-sided toward rounded apex. Median lobe (Fig. 54 e–f) with apex acuminate in antero-dorsal view. Endophallus (n = 3, Fig. 63) longer than triple length of median lobe, the length of MT ca. 2.3 times as long as the length of BPH, the length of CT+PB subequal to the length of BPH, CT slightly longer than PB; MPH moderately curved at apical two-fifth, PB cylindrical at basal one-fourth, basal swelling (bs) of CT moderately swollen anterolaterally; APH moderately swollen, slightly wider than the maximum width of PB at base, obliquely truncated in lateral view; small spicules evenly distributed on basal half of apical bulb, densely distributed on apical one-third of PB.

Female (Fig. 14). Body length 19.4-23.0 mm, humeral width 6.7-7.4 mm. Almost identical to male in general appearance. Antennae 1.2 times as long as body length, surpassing elytral apex at base of 9th antennomere; basal 7 antennomeres fringed beneath; 3rd to 6th antennomeres distinctly annulate with light yellowish pubescence at base; elytron longer in proportion to body length; legs comparatively short, metatibiae exceeding elytral apices at apical two-third.

Remarks.

This new species is most similar to Pseudoechthistatus birmanicus and Pseudoechthistatus chiangshunani sp. n. by the general habitus but can be distinguished from the former by the elytral gran ules being rather weakly developed and limited within basal one-third; elytral punctures finer and sparser; middle band of elytron interrupted or nearly interrupted and more developed pronotal lateral spines. It can also be distinguished from the latter by the an tenna being shorter than body length, at least 3rd to 4th antennomeres with light yellowish pubescent annulations at base; elytra relatively smooth, granulate only at basal one-third, elytral punctures finer and sparser; female humeri similar to male, not constricted.

Etymology.

The new species is named after Carolus Holzschuh, a specialist in Cerambycidae , who kindly provided his collection for this study.

Distribution

(Map 1). China: Yunnan; Vietnam: Lào Cai.