Laena faillei, Schawaller & Bellersheim, 2023

Schawaller, Wolfgang & Bellersheim, Aron, 2023, New species and records of Laena Dejean (Coleoptera: Tenebrionidae: Lagriinae) from Vietnam, southeastern China, and Korea, Zootaxa 5296 (4), pp. 540-550 : 541-543

Laena faillei sp. n.

( Figs 1 , 15 )

Type material. Holotype: ♁, Vietnam, Cam Lam , Suoi Cat, Hon Ba NR, Yersin, 1500 m, 14.XI.2013, leg. B. Fontaine & O. Gargomini, SMNS . Paratypes. Same data as for holotype, 3 ex. SMNS , 1 ex. IEBH .— Vietnam, Cam Lam , Suoi Cat, Hon Ba NR, Yersin, 1500 m, 13.XI.2013, leg. A. Faille, 1 ex. SMNS .— Vietnam, Khan Hoa , Suoi Cat, Hon Boa NR, 900–1160 m, 19.XI.2013, leg. A. Faille, 1 ♀ SMNS .

Description. Body length 4.0– 4.8 mm, dorsal surface dark brownish with a feeble greenish lustre, legs distictly lighter. Eyes not prominent. Pronotum trapezoid, widest across anterior angles, posterior margin distinctly narrower than the anterior one; with large separated punctures, distance 0.5–3 puncture diameters, a few punctures laterally with long erect setae; surface convex and shining, disc in middle without impression(s), lateral margins distinctly beaded; posterior corners rounded; prothoracic hypomera with similar punctures as on pronotum but without visible setation. Elytra elongate oval with rows of punctures in feeble striae, punctures of rows similar as punctures on pronotum, some punctures laterally and at elytral declivity with long erect setae; intervals with very few glabrous punctures, interval 9 with 5 distinct setiferous pores, intervals convex, external intervals stronger convex and nearly keel-like; surface shining.Apex of elytra prolonged.All femora without teeth or sharp angles. Tibiae simple, without peculiarities. Apicale of aedeagus long triangular with acute apex ( Fig. 15 ).

Diagnosis. Laena faillei sp. n. shares with L. vietnamica Masumoto, 1995 and L. hystrix Masumoto, 1996 , both from Vietnam, the general body size and shape, the beaded lateral margins of the pronotum, and the unarmed femora. However, in L. vietnamica and L. hystrix the dorsal side is without metallic luster, the punctures of the pronotum and elytra are smaller and denser, nearly all dorsal punctures bear long erect setae, and the elytral intervals are nearly flat. Both mentioned species are described without figures of the aedeagus.

Etymology. Named in honour of my colleague Arnaud Faille (Stuttgart), one of the collectors of the type series.

Figures

FIGURES 1–7. Dorsal view of Laena species from Vietnam and southeastern China. 1. L. faillei sp. n., ♀ paratype, Vietnam, SMNS. 2. L. brunkei sp. n., ♁ holotype, Vietnam, NHMW. 3. L. lianhua sp. n., ♁ holotype, Jiangxi, SMNS. 4. L. hajeki sp. n., ♁ paratype, Guangdong, SMNS. 5. L. hainanica sp. n., ♁ holotype, Hainan, NMPC. 6. L. logshengica sp. n., ♁ paratype, Guangxi, NMPC. 7. L. honba sp. n., ♁ holotype, Vietnam, SMNS. Scale line: 3.0 mm.

FIGURES 11–20. Aedeagi of Laena species from Vietnam and southeastern China. 11. L. tramtonica sp. n., ♁ holotype, Vietnam, NHMW. 12. L. tamdaoensis Masumoto, 1996, non-type, Vietnam, NHMW. 13. L. fanjingshanana Ren & Hua, 2006, ♁ non-type, Guangxi, SMNS. 14. L. lianhua sp. n., ♁ holotype, Jiangxi, SMNS. 15. L. faillei sp. n., ♁ holotype, Vietnam, SMNS. 16. L. logshengica sp. n., ♁ holotype, Guangxi, NMPC. 17. L. honba sp. n., ♁ holotype, Vietnam, SMNS. 18. L. brunkei sp. n., ♁ holotype, Vietnam, NHMW. 19. L. hainanica sp. n., ♁ holotype, Hainan, NMPC. 20. L. hajeki sp. n., ♁ holotype, Guangdong, NMPC. Scale line: 1.0 mm.