Pseudoechthistatus pufujiae, 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 : 71-74

Taxon classification Animalia Coleoptera Cerambycidae

Pseudoechthistatus pufujiae sp. n. Figures 15, 16, 27, 37, 45, 55, 61, 73-77, Map 1

Pseudoechthistatus birmanicus : Pu 1992: 601. (nec Breuning, 1942).

Type material.

Holotype: male, "CHINA. Yunnan, Lushui / Yaojiaping 2450 m / 2015.V.4 em. VI.9 / leg. Wen-Xuan Bi", “IOZ(E)1905345” (IZAS). Paratypes (5 males, 6 females): 2 males, 1 female, same data as holotype but (CBWX); 1 male, ditto except "em. VI.4" (CBWX); 1 male, ditto except “2015.VIII.13” (CBWX); 1 female, "Yunnan Lushui / Yaojiaping 2500 m", "1981.VI.2 / leg. Wang Shu-Yong", " Pseudechthistatus / birmanicus / Breuning / det. Pu Fu-Ji 19", “IOZ(E)1905350” (IZAS); 1 female, "CHINA. Yunnan, Lushui / Yaojiaping / 2700 m 2010.VI.21 / leg. Wen-Xuan Bi" (CBWX); 1 female, ditto except "2600m 2010.VI.23" (CBWX); 1 female, ditto except "2700 m 2010.VI.21 / leg. Xiao-Dong Yang" (CCCC); 1 male, "Yunnan, Lushui, Pianma / Gangfang alt.2402 m / 2014.IV.11 night / leg. Xuan-Kong Jiang, Tian Lu", " 25°17.776'N / 98°45.862'E / YNGLGS-14-36", “IOZ(E)1905345” (IZAS); 1 female, "CHINA. Yunnan, Baoshan / Baihualing 2350m / 2015.V.4 em. VII.1 / leg. Wen-Xuan Bi" (CBWX).

Description.

Male (Fig. 15). Body length 19.0-23.5 mm, humeral width 6.0-7.5 mm. Body dark brown; head, pronotum covered with tawny and brown pubescence, ventral surface with yellowish to light brown pubescence of which the lighter one forming small spots sparsely scattered throughout. Head with four tawny vittae behind upper eye lobes distinctly. Antennal scape, pedicel, basal two-thirds of 3rd antennomere and basal half of 4th antennomere with light yellowish pubescence, remainder with fine brown pubescence. Pronotum with two longitudinal tawny bands on each side of disk and other two indistinct longitudinal bands on lateral margins, the discal bands slightly longer than half of pronotal length. Scutellum densely clothed with tawny pubescence, slightly sparse along middle. Elytron with pubescence predominantly brick-red, with tawny pubescence forming the subbasal annular marking and some small spots scattered near suture and behind humerus, with light yellowish pubescence forming a short transverse band at basal one-fourth near suture, with the same pubescence forming the middle band and the preapical stripe; the middle band moderately broad and oblique, complete, slightly curved or strongly zigzagged near suture and reaching suture; the preapical stripe moderately broader at base. Legs (Fig. 37) densely clothed with intermixed tawny and light brown pubescence.

Body elongate, oblong oval. Head (Fig. 27) with frons sparsely and coarsely punctured; lower eye lobe subequal in length and width, 0.7 times as long as gena. Antennae ca. 1.7-1.8 times as long as body length, surpassing elytral apex at base of 6th antennomere; 3rd antennomere ca. 1.9 times as long as scape, ca. 1.3 times as long as 4th antennomere; coarsely punctured on scape to basal half of 3rd antennomere; scape to 3rd or 4th antennomere fringed beneath. Pronotum subequal in length and basal width, lateral spine very short, slightly thickened at base with acute apex; metasternum ca. 1.5 times as long as mesosternal length. Elytra ca. 1.5 times as wide as pronotal base, 1.8 times as long as humeral width; subparallel-sided in basal half, then moderately convergent toward subacute apices; disk deeply and coarsely punctured, sparsely and slightly granulated near humerus and scutellum; subbasal tubercle moderately developed and raised, ca. 1.2 times as wide as scutellar width. Hindwings (Fig. 45) developed, ca. 1.4 times as long as elytral length. Legs moderately long and slender, metafemora slightly exceeding elytral apices.

Male genitalia (Figs 55, 61). Tergite VIII (Fig. 55a) transverse, slightly emarginated apically and rounded at sides, length 0.9 times as long as width. Tegmen (Fig. 55 b–c) with lateral lobe widest at base, gently narrowed toward subacute apex. Median lobe (Fig. 55 d–e) with apex subacute in antero-dorsal view. Endophallus (n = 2, Fig. 61) subequal to triple length of median lobe, the length of MT ca. 2.5 times as long as the length of BPH, the length of CT+PB subequal to the length of BPH; MPH moderately curved at apical one-third, PB cylindrical at basal one-third, basal swelling (bs) of CT moderately swollen anterolaterally; APH strongly constricted, ca. 0.4 times as wide as the maximum width of PB at base, with apical bulb (ab) heavily sclerotized in apical half, obliquely truncated in lateral view; small spicules moderately distributed on apical bulb and apical one-third of PB.

Female (Fig. 16). Body length 18.2-22.7 mm, humeral width 5.5-7.0 mm. Almost identical to male in general appearance. Antennae ca. 1.2 times as long as body length, apical 3 antennomeres surpassing elytral apex; scape to 6th or 7th antennomere fringed beneath; lower eye lobe subequal in length and width, 0.4 times as long as gena; elytron longer in proportion to body length; legs comparatively short, metatibiae exceeding elytral apices at basal two-third.

Remarks.

This new species can be distinguished from most of the congeners (except Pseudoechthistatus acutipennis ) by elytral disk deeply and coarsely punctured throughout and limited granulated near base. It can be easily distinguished from Pseudoechthistatus acutipennis by pronotal bands and elytral preapical stripe developed, elytral apices subacute, hindwings developed (in Pseudoechthistatus acutipennis , pronotal bands reduced, preapical stripe of elytron absent, elytral apices strongly acute and hindwings reduced).

Pu (1992) misidentified this species as Pseudoechthistatus birmanicus , since the original description of the latter was too simple. Based on the type pictures, Pseudoechthistatus birmanicus can be easily separated from this new species by elytra with bigger and flattened granules from base to near apex, while elytral punctures finer. The middle band of the elytron is variable in the new species and cannot be used for a reliable diagnosis.

Etymology.

The new species is dedicated to the late Fu-Ji Pu (1932-2002), a specialist in Chinese Cerambycidae .

Distribution

(Map 1). China: Yunnan.