Macrolycus curtus Y. Yang, Liu & X. Yang 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 curtus

description: Macrolycus curtus Y. Yang, Liu & X. Yang sp. nov.
Figs 6 J – L, 7 C, D
Diagnosis.
The species resembles M. costus sp. nov. in the short apical part (1 / 10 length) and fusiform ventral-cavity of phallus, but differs in the weak elytral costa III (Fig. 7 C) (strong in M. costus sp. nov.; Fig. 5 C); phallus relatively stout and curved laterally at basal 1 / 4 portion in dorsal and ventral views (Fig. 6 J – K) (slender and almost straight at basal part in dorsal and ventral views in M. costus sp. nov. (Fig. 6 D – F).
Etymology.
The specific name is derived from the Latin curtus (short), referring to the short apical part of its phallus.
Type material.
Holotype. China: ♂ (IZAS), Gansu, Kangxian, Qinghe Forestry, 1400 m, 8. vii. 1999, leg. J. Yao. Paratype. 1 ♀ (IZAS), same data as holotype.
Description.
Male (Fig. 7 C). Length 11.5 mm, width at humeri 2.4 mm.
Body black. Pronotum dark red with a square black patch in the center of the disc, elytra and scutellum dark red. Surface covered with decumbent red pubescence (Fig. 7 C).
Eyes small, interocular distance about 1.9 times greater than eye diameter. Antennae flabellate, overlapping basal 2 / 3 length of elytra when inclined. Antennomeres III – XI lamellate, lamellae of III and IV apically rounded and V – XI pointed at apices, lamella of III 0.6 times as long as joint itself, lamella of IX longest, 3.4 times longer than joint itself (Fig. 7 C).
Pronotum square, 1.2 times wider than long. Anterior margin widely rounded, and feebly projecting anteriad, lateral margins sinuate and posterior margin almost straight; anterior angles rounded, posterior angles sharp and moderately projected. Scutellum trapezoidal, feebly emarginate at apex (Fig. 7 C).
Elytra 4.0 times longer than humeral width. Costae I and II as strong as IV, and III visible only basally (Fig. 7 C).
Phallus slender (Fig. 6 J – L), basal part parallel-sided and curved laterally at basal 1 / 4 portion in dorsal and ventral views (Fig. 6 J, K), subapical part moderately and asymmetrically inflated laterally, about 1.9 times as wide as basal part, with a fusiform ventral-cavity, apical part constricted distad, apex with a shallow V-shaped notch, about 0.47 times as wide as subapical part; basal 1 / 3 part moderately curved ventrally in lateral view (Fig. 6 L), subapical part flat ventrally, apical part short and moderately expanded ventrally, with a tapered lamella.
Female (Fig. 7 D). Similar to male, but larger in body size. Length 21.2 mm, width at humeri 5.4 mm. Antennae serrate and shorter, overlapping elytral mid-length when inclined. Pronotum 1.3 times wider than long. Elytra 3.3 times longer than humeral width.
Distribution
(Fig. 2). China (Gansu).
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