Macrolycus opacipennis Y. Yang, Du & Liu 2024, sp. nov.
Creators: name: Du, Ruolan
name: Yang, Yuxia
name: Yang, Xingke
name: Liu, Haoyu
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Macrolycus
Macrolycus opacipennis

description: Macrolycus opacipennis Y. Yang, Du & Liu sp. nov.
Figs 6 G – I, 7 A, B
Diagnosis.
This species differs from all others of the M. ligulatus species-group in the elytra darkened at costal intervals (Fig. 7 A), while never darkened in others; basal part of phallus progressively widened towards middle in dorsal and ventral views (Fig. 6 G, H), while narrowed towards middle or subparallel-sided in others.
Etymology.
The specific name is derived from the Latin opacus (darkened, obscure) + penna (feather), referring to its elytra darkened at costal intervals.
Type material.
Holotype. China: ♂ (MHBU), Ningxia, Jingyuan, Wanghuanan, 3–4. vii. 2009, leg. G. D. Ren & Y. B. Ba. Paratype. 1 ♀ (MHBU), same data as holotype.
Description.
Male (Fig. 7 A). Length 12.1 mm, width at humeri 2.7 mm.
Body black. Pronotum red with a square black patch in the center of the disc, elytra red and darkened at costal intervals, and scutellum red. Surface covered with decumbent red pubescence (Fig. 7 A).
Eyes small, interocular distance about twice greater than eye diameter. Antennae flabellate, overlapping basal 2 / 3 length of elytra when inclined. Antennomere III with minute lamella, 0.6 times as long as joint itself and apically obtuse, IV – XI lamellate, lamellae pointed at apices; lamella of IX longest, 2.9 times longer than joint itself (Fig. 7 A).
Pronotum square, 1.2 times wider than long. Anterior margin widely rounded, and feebly projecting anteriad, lateral margins sinuate and posterior margin straight; anterior angles rounded, posterior angles sharp and moderately projected. Scutellum trapezoidal, emarginate at apex (Fig. 7 A).
Elytra 3.7 times longer than humeral width. Costae I and II as strong as IV, and III visible only basally (Fig. 7 A).
Phallus slender (Fig. 6 G – I), basal part progressively widened towards middle in dorsal and ventral views (Fig. 6 G, H), subapical part strongly and asymmetrically inflated laterally, about 2.2 times as wide as basal part, with an oval ventral-cavity, apical part nearly parallel-sided, apex with a deep V-shaped notch, about 0.39 times as wide as subapical part; basal 1 / 4 part feebly curved ventrally in lateral view (Fig. 6 I), subapical part feebly inflated ventrally, apical part moderately expanded ventrally, apex with a tapered lamella.
Female (Fig. 7 B). Similar to male, but larger in body size. Length 13.0 mm, width at humeri 3.4 mm. Antennae serrate and shorter, overlapping basal 1 / 3 length of elytra when inclined. Pronotum 1.4 times wider than long. Elytra 3.0 times longer than humeral width, uncovering abdominal tergite VIII.
Distribution
(Fig. 2). China (Ningxia).
description: Published as part of Du, Ruolan, Yang, Yuxia, Yang, Xingke & Liu, Haoyu, 2024, Five new species of the Macrolycus ligulatus species-group from China (Coleoptera, Lycidae), pp. 315-330 in ZooKeys 1208 on pages 315-330, DOI: 10.3897/zookeys.1208.125938