Echinovelleda mumuae Bi & Mu, 2024

Bi, Wen-Xuan, Mu, Chen & Lin, Mei-Ying, 2024, Taxonomic studies on the genera Echinovelleda Breuning, 1936 and Propedicellus Huang, Huang & Liu, 2020 (Coleoptera, Cerambycidae, Lamiinae, Lamiini), Zootaxa 5399 (1), pp. 65-78 : 74-75

Echinovelleda mumuae Bi & Mu , sp. nov.

( Figs. 11, 12 , 20 , 23 , Map 1 )

Type material. Holotype: male, “ CHINA, Yunnan, Shizong / Junzishan / 2,100–2,400 m, 2022.VII.28–VIII.1 / leg. Wen-Xuan Bi ” ( IZAS).

Paratypes: 42 males, 25 females, same data as the holotype ( CBWX) ; 1 female, same data as the holotype ( IZAS) ; 1 male, 1 female, same data as the holotype ( SHEM) ; 3 females, same locality as the holotype, “ 2022.VII.28 em. VIII.15 / leg. Wen-Xuan Bi ” ( CBWX) ; 1 female, ditto except “em. X.9” ( CBWX) ; 10 males, 5 females, ditto except “ 2022.VII.26–VIII.1 / leg. Jin-Teng Zhao ” ( CCCC) ; 1 male, 1 female, same locality as the holotype, “ 2,142 m, 2023.V.16, leg. Yan-Quan Lu ” ( CCCC) ; 1 male, ditto except “ 2,150 m, 2023.VI.21 ” ( CCCC) ; 2 males, 4 females, “ China, Yunnan, Gejiu / Jiaodingshan / 2,200 –2,480 m, 2022.VIII.2–3 / leg. W.-X. Bi & J.-T. Zhao ” ( CBWX) ; 2 males, ditto except “ 2,300 –2,490 m, 2022.VIII.2 / leg. Jin-Teng Zhao ” ( CCCC) ; 1 male, “ China, Yunnan, Gejiu / Shenxianshui / 2,100 m, 2022.VI.30 / local collector ( CMC) ; 2 males, 1 female, “ China, Yunnan, Wenshan / Laojunshan / 2,100 –2,200 m, 2022.VIII.4 / leg. Jin-Teng Zhao ” ( CCCC) ; 1 female, “ China, Yunnan, Wenshan / Baozhushan / 2, 300 m, 2022.VIII.5 / leg. Wen-Xuan Bi ”( CBWX) ; 1 female, “ China, Yunnan, Wenshan / 5km N of Yaodiancun / 2,000 m, 2022.V / local collector” ( CMC) .

Description. Male ( Fig. 11 ). BL = 12.8–16.1 mm, BW = 4.3–5.7 mm. Integument of body and appendages mostly dark brown, antennomeres III to XI, anterior and posterior margins of pronotum reddish brown. Head, pronotum, ventral surfaces and legs mostly covered with light brown pubescence intermixed with sparse pale hairs and dark brown setae, which are relatively sparser on head and pronotum. Head with three tawny vittae vaguely situated between the antennal tubercles and behind the upper eye lobes. Antennal scape and pedicel clothed with similarly colored pubescence as head, antennomeres III to VIII covered with fine yellowish pubescence, becoming denser on each apex. Pronotum with dense tawny pubescence covered on the tips of discal calli, around the base of lateral spines, and forming two longitudinal stripes situated at sides behind the midlength, which is not reaching posterior margin (these maculae are indistinct or almost absent in some individuals), and with a short narrow median stripe of yellowish pubescence at base. Scutellum densely clothed with yellowish pubescence except for a narrow glabrous midline. Elytra predominantly covered with fine light brown pubescence; each elytron provided with a large transverse velvety macula of blackish pubescence near apical third and a few same colored however much smaller spots behind it, and with a few small yellowish to pale pubescent spots mainly scattered along the lateral margin and on apical third.

Head with frons rugose, coarsely punctate; lower eye lobe 1.7 times as long as width, nearly as tall as gena. Antennae moderately long, AL/BL = 1.5–1.8; scape rugose, coarsely punctate; antennomere III 1.4 times as long as scape, 1.2 times as long as antennomere IV.

Pronotum 1.1 times as long as basal width, the width across lateral spines about 1.6 times of basal width; lateral spine short, thickened at base with subacute apex; disk moderately convex, sparsely and finely punctate, with three main prominent calli arranged in an inverted triangle, and a few setigerous granules converging at sides of the posterior callus. Scutellum rounded triangular.

Elytra ca. 1.7 times as wide as pronotal base, EL/EW = 1.7; slightly widened from humeri to midlength, then gradually convergent toward conjointly rounded apices, moderately convex near basal two-thirds in lateral view; humeri broadly rounded, gently constricted, depressed dorsolaterally; each elytron with series of glabrous, mostly rounded granules (or tubercles) forming one longitudinal row and two carinae, of which one short mesal carina (or represented by a large oval swelling) is about quarter of elytral length situated at base near the scutellum, one lateral (sometimes indistinct) row close to the elytral epipleuron, extending from the humerus to apical two-fifths, and one dorsolateral carina extending behind the humeral depression to apical one-fourth, with posterior edge thickened and prominent, formed by several converging granules; disk also scattered with a few small granules mainly on basal half. Hind wings highly reduced, less than two-fifths of elytral length. Metaventrite shortened, subequal to mesoventral length. Legs moderately long; metafemora roughly reaching elytral apices.

Male genitalia. Tergite VIII, tegmen and median lobe as in Fig. 20 . Endophallus ( Fig. 23 ) similar to that of Echinovelleda guoliangi (cf. Fig. 24 ) except for the MT+CT slightly constricted at basal third, MT and CT well defined by a dorsal constriction, CT relatively more curved dorsally and ltc relatively larger.

Female ( Fig. 12 ). BL = 13.3.– 17.4 mm, BW = 5.1–6.6 mm. Almost identical to male in general appearance. Body relatively stout. Appendages relatively shorter. AL/BL = 1.3. EL/EW = 1.6–1.7.

Etymology. The new species is dedicated to Mu Mu, the daughter of the second author.

Distribution ( Map 1 ). China: Yunnan (Shizong County; Wenshan City; Gejiu City).

Remarks. This new species superficially resembles E. inermis , however can be readily separated from it by the pronotum with light colored spots or stripes usually more distinct and well-defined, scutellum relatively lighter colored due to the dense light colored pubescent coverings, elytra markedly bearing a pair of large blackish subapical macula, appendages relatively longer, endophallus with MT not coarsely wrinkled, CT not constricted at ventral side, basal part of PB not constricted distally and bb roughly present. The similarities of the endophallic structures between this species and E. guoliangi indicate their close relationship (cf. Figs. 23 and 24 ). However it can be distinguishable by the external characters which associated with the loss of flight capability, i.e., the moderately constricted humeri, the shortened elytra with reduced hind wings and the shortened metaventrite, also by the comparatively short antennae.

Figures

MAP 1. Distribution of Echinovelleda.

FIGURES 9–12. Habitus of Echinovelleda spp. 9, 10, E. protochinensis Bi & Lin, sp. nov. from Daguan, Yunnan, China; 11, 12, E. mumuae Bi & Mu, sp. nov. from Shizong, Yunnan, China. 9, 11, male; 10, 12, female. 9, holotype; 10–12 paratype. a, lateral view.

FIGURES 19–20. Genitalia of Echinovelleda spp. 19, E. protochinensis Bi & Lin, sp. nov.; 20, E. mumuae Bi & Mu, sp. nov. a, tergite VIII with sternites VIII & IX in ventral view; b, tegmen in ventral view and lateral view; c, median lobe in ventral view and lateral view. Scale = 1 mm.

FIGURES 21–27. Endophallus of Echinovelleda spp. in inflated and everted condition. 21, E. c. chinensis Breuning, 1936; 22, E. c. dichromata Bi, 2018; 23, E. mumuae Bi & Mu, sp. nov.; 24, E. guoliangi (Huang, Huang & Liu, 2020); 25, E. protochinensis Bi & Lin, sp. nov.; 26, E. vitalisi (Pic, 1925); 27, E. qiului (Huang, Huang & Liu, 2020). a, enlargement of apical portion; b apical portion in dorsolateral view. 21, from Bi (2018); 22, from Bi & Chen (2021).