Abirus balyi Medvedev, 2019

Medvedev, L. N., 2019, To the knowledge of Oriental leaf beetles (Coleoptera: Chrysomelidae), Russian Entomological Journal 28 (3), pp. 282-285 : 284

Abirus balyi Medvedev , sp.n.

Fig. 3 .

MATERIAL. Holotype, ♂: Borneo ( BMNH).

DESCRIPTION. Greenish-blue, antennae blackish-blue. Body elongate, 1.8 times as long as wide. Head shining, sparsely punctate. Proportions of segments are as 13-4-11-8-9- 10-16, next segments absent, segment 7 moderately widened to apex. Prothorax 1.1 times as wide as long, shining, densely punctate, interspaces flat, mostly smaller than size of punctures. Scutellum shining, with a few microscopic punctures, broadly rounded on apex. Elytra 1.3 times as long as wide, densely punctate, with interspaces convex and mostly transverse. Segment 1 of anterior and mid tarsi feebly widened.

Aedeagus with triangular apex and preapical impression on underside ( Fig. 3 ).

Length 5.4 mm.

DIAGNOSIS. Very alike at A. apicalis Baly, 1867 , both species might be divided as follow:

1(2) 2 or 3 apical antennal segments fulvous. Elytra of male 1.5-1.6 times as long as wide. Aedeagus with long acute spine on apex without preapical impression on underside ( Fig. 4 ) ....................................... A. apicalis Baly, 1867

2(1) Antennae entirely black. Elytra of male 1.3 times as long as wide. Aedeagus with triangular apex and preapical impression on underside ( Fig. 3 ) ............ A. balyi sp.n.

Figures

Figs 1–7. Chrysomelidae, detals: 1 — Smaradina bryanti sp.n., 2 — Cryptocephalus tomkovichi sp.n., 3 — Abirus balyi sp.n., 4 — Abirus apicalis, 5 — Colaspoides subfasciata sp.n., 6 — Manobia bocakovi sp.n.; 7 — Manobia sumatrana sp.n.; 1–6 — aedeagus, ventral view; 7 — spermatheca. Рис. 1–7. Chrysomelidae, детали строениЯ: 1 — Smaradina bryanti sp.n., 2 — Cryptocephalus tomkovichi sp.n., 3 — Abirus balyi sp.n., 4 — Abirus apicalis, 5 — Colaspoides subfasciata sp.n., 6 — Manobia bocakovi sp.n.; 7 — Manobia sumatrana sp.n.; 1–6 — Эдеагус, сниЗу; 7 — сперматека.