Miccolamia mystica Bi & Lin sp. nov.

Figs 3, 4, 28, 53, Map 1 Chinese common name: 迷小沟胫天牛

Type material.

Holotype: • male, “ CHINA. Hubei, Shiyan / Wudangshan / 1,400 m, 2020. V. 31 / leg. Wen-Xuan Bi ” (SNUC) . Paratypes (4 males, 4 females): • 2 females, same data as holotype (CBWX); • 1 male, same locality as holotype, “ 1,410 m, 2021. VI. 19 / leg. Wen-Xuan Bi ” (CBWX); • 1 male, “ CHINA. Hubei, Yichang / Houhe / 1,350 m, 2020. V. 15 / leg. Wen-Xuan Bi ” (CBWX) ; • 1 male, “ CHINA. Hubei, Fangxian / Yulingou / 1,120 m, 2020. V. 30 / leg. Wen-Xuan Bi ” (CBWX) ; • 1 female, “ CHINA. Hubei, Changyang / Tianzhushan / 1,490 m, 2020. VI. 28 / leg. Wen-Xuan Bi ” (CBWX) ; • 1 male, 1 female, ditto except “ 1,320 m, 2021. VI. 22 ” (CBWX) .

Description.

Male (Fig. 3). BL = 2.80–3.46, BW = 0.85–1.04 mm. Body and appendages mostly reddish brown, shiny; head, pronotum, apical four or five antennomeres, and legs darker; elytra light reddish brown in basal 1 / 3, remaining portion blackish; ventral surface with abdominal ventrites dark brown. Head and appendages provided with very sparse whitish hairs, finer on apical three antennomeres and longer on tibiae; pronotum with similar whitish hairs, mainly scattered near anterior margin or moderately densely on basal 1 / 5 forming undulate band, of which the median hairs are partially directed anteriorly; scutellum covered with yellowish hairs, becoming denser posteriorly; each elytron with sparse whitish hairs forming vague transverse band extending from subbasal tubercle to near basal 1 / 3, not reaching suture; ventral surface clothed with yellowish hairs, sparser on abdomen and central area of metaventrite.

Head slightly wider than pronotal anterior margin, shallowly concave between antennal tubercles; frons sparsely and finely punctate, finely sculptured. Eyes moderately emarginated, upper and lower eye lobes connected by 2 rows of ommatidia; lower eye lobe 1.7 × as long as wide, 1.2 × as long as gena. Antennae moderately stout, AL / BL = 1.0–1.1; scape weakly clavate, sparsely punctate and finely sculptured; antennomere III subequal to IV, 1.4 × longer than scape or antennomere V.

Pronotum subequal in length and width across lateral tubercles, ~ 1.5 × as long as basal width, constricted at basal 1 / 5 by a shallow groove; lateral tubercles situated slightly behind the midlength, moderately developed with acute apices; disk moderately convex, very sparsely and shallowly punctate.

Elytra elongate, EL / EW = 2.0–2.2, EL / PL = 2.5–2.6, gently constricted behind the obtusely angulate humeri, weakly dilated slightly behind midlength, then convergent toward conjointly rounded apices; very weakly convex near apical 1 / 3 in lateral view (Fig. 28). Each elytron with single large oval-shaped subbasal tubercle tufted with long setae at tip; disk (besides those setigerous punctures) densely and deeply punctate in basal 1 / 3, forming six or seven longitudinal rows, abruptly becoming finer and sparser on portion of integument, almost imperceptible on apical 1 / 3. Ventral surface sparsely and finely punctate. Legs moderately long and thick; metatibiae barely exceeding elytral apices; tarsal claws appendiculate.

Male terminalia. Tergite VIII (Fig. 53 a) trapezoidal with truncate apex; apical margin bearing short fine setae. Tegmen (Fig. 53 b) with lateral lobe gradually narrowed to subacute apex bearing two or three long setae and three or four short fine setae. Median lobe (Fig. 53 c) moderately curved in lateral view; apex subacute.

Female (Fig. 4). BL = 2.58–3.77 mm, BW = 0.89–1.22 mm. Almost identical to male in general appearance. Appendages relatively shorter. AL / BL = 1.0, EL / EW = 1.9–2.0.

Remarks.

This new species closely resembles the comparatively widely distributed M. savioi, with both occurring sympatrically in Wufeng and Fang counties (Hubei Province; Map 1) and occasionally sharing the host plant Broussonetia papyrifera ( Moraceae). However, this new species can be distinguished from M. savioi by the pronotal disk less convex with basal hairy band undulate (median hairs directed anteriorly); elytral dark integument relatively larger, occupying apical 2 / 3; elytra with basal punctures forming distinct longitudinal rows, with light-colored pubescent band broader and more vaguely defined due to being formed by relatively sparser hairs, and with subbasal tubercles tufted with only long setae.

Etymology.

The specific epithet is derived from the Greek mystikós, meaning mystical, referring to the biological and morphological situation of the new species.

Distribution

(Map 1). China: Hubei.