Liroetis coeruleus ( Jiang, 1990 ) Bezděk, 2021

Bezděk, Jan, 2021, Redefinition of Liroetis, with descriptions of two new species and an annotated list of species (Coleoptera: Chrysomelidae: Galerucinae), Acta Entomologica Musei Nationalis Pragae 61 (2), pp. 529-614 : 535

Liroetis coeruleus ( Jiang, 1990) comb. nov.

( Figs 21 , 27 )

Zangia coerulea Jiang, 1990: 143 , 144 (original description).

Zangia coerulea : Bൾൾඇൾඇ (2010): 490 (catalogue); YൺඇǤ et al. (2015): 274 (key), 274 (noted).

Type locality. ‘[ China:] Sichuan: Emei shan’.

Type material examined. Hඈඅඈඍඒඉൾ:J ( Fig. 21 , only photograph seen), ‘[Sichuan, Mt. Emei, 2100–3100 m / 1955.VI.26. / Zhong-Lin Ge] [in Chinese, w, p] // Oмейшань, 2100–3100 м. / Сычуань 26 У1 1955 / Гэ Цун-лин [w, p, Russian version of the previous label] // [No. 12] [in Chinese, w, h] // Zangia / coerulea / sp. n. / [Identifier:Sheng-Qiao Jiang] [partly in Chinese, w, combined p and h]’ ( IZAS).

Diagnosis. Colouration. Body completely orange except for piceous antennae and metallic blue elytra.

Body length. JJ: 7.8–8.0 mm.

Aedeagus in lateral view as in Fig. 27 . Lateral elevation triangular, placed in apical fifth of aedeagus length. Middle part straight, apical and basal parts moderately bent. Dorsal process as long as median lobe of aedeagus, with narrow and bent base, apically widely divergent, apical part with V-shaped incision.

Female unknown.

Differential diagnosis. Having orange pronotum, head and underside, and metallic blue elytra, Liroetis coeruleus is similar to L. aeneipennis and L. violaceipennis . The males of all three species differ in the structure of aedeagus (cf. Figs 26, 27 , 351 ). Moreover, L. violaceipennis has pronotum strongly transverse, twice as wide as long, and Liroetis aeneipennis has body pale brown and elytra metallic green.

Distribution. China: Sichuan (JංൺඇǤ 1990).

Figures

Figs 21–25. Type specimens of Liroetis, dorsal view. 21 – L. coeruleus (Jiang, 1990), male, holotype; 22 – L. latispinus (Chen, 1976), male, holotype; 23 – L. nigricollis (Jiang, 1990), male, holotype; 24 – L. pallidulus (Jiang, 1990), male, holotype; 25 – L. ephippiatus (Laboissière, 1930) (holotype of Zangia signata Jiang, 1990, male).

Figs 26–31. Aedeagus of Liroetis, dorsal and lateral views. 26 – L. aeneipennis Weise, 1889; 27 – L. coeruleus (Jiang, 1990); 28 – L. coeruleipennis Weise, 1889; 29 – L. ephippiatus (Laboissière, 1930); 30 – L. leechi Jacoby, 1890; 31 – L. nigricollis (Jiang, 1990). Fig. 27 reproduced from JංൺඇǤ (1990). Scale 0.5 mm.

Figs 347–351. Aedeagus of Liroetis, dorsal and lateral views, apex of dorsal process in frontal view. 347 – L. apicicornis Jacoby, 1896; 348 – L. latispinus (Chen, 1976); 349 – L. pallidulus (Jiang, 1990); 350 – L. reitteri (Pic, 1934); 351 – L. violaceipennis Zhang, Li & Yang, 2008. Fig. 348 reproduced from JංൺඇǤ (1990). Scale 0.5 mm.