Elbenia (Tamdaopteron) tembelingi, Gorochov, 2025

Gorochov, A. V., 2025, TAXONOMY OF THE KATYDIDS (ORTHOPTERA: TETTIGONIIDAE) FROM EAST ASIA AND ADJACENT ISLANDS. COMMUNICATION 17, Far Eastern Entomologist 514, pp. 1-20 : 6-7

Elbenia (Tamdaopteron) tembelingi Gorochov, sp. n.

https://zoobank.org/NomenclaturalActs/ DA2FC43D-6C63-47B3-A3B7-A010C8139CF0

Figs 6–9 , 16–20

MATERIAL. Holotype – ♂, Malaysia: Pahang State (Malay Peninsula), Taman Negara National Park on Tembeling River , ~ 100 m, primary forest, on leaf of bush at night, 28.XI–5.XII 2014, A. Gorochov , M. Berezin, E. Tkatsheva ( ZIN).

DESCRIPTION. Male (holotype). Body medium-sized for this subgenus. Coloration light greenish with yellowish tinge, light greyish brown eyes, a few very small but distinct darkish spots on proximal part of left antennal flagellum (such spots on right flagellum almost indistinct), light brown most part of left stridulatory vein (but its ventral part almost dark brown) as well as venation in most part of left basal tegminal area and in lateral half of right basal tegminal area, brown membranes between veins and veinlets of this venation and in proximal portion of M-Cu area as well as in only left tegmen behind stridulatory vein (but near it), intensively yellow tegminal M (before base of MP) and stripe along anal edge of lateral tegminal field (but this stripe with one row of very small darkened membranes), yellowish to greyish most part of venation in hind wings, whitish venation in these wings near costal edge, transparent membranes in these wings and in central part of stridulatory apparatus of right tegmen (but membranes in apical part of hind wings slightly yellowish with greenish tinge), and greyish brown denticles and keels of genital plate as well as apical parts of cerci ( Figs 6–9 , 16–20 ) and of spines and spurs in hind tibiae. Structure of body similar to that of E. (T.) major Gorochov, 2005 and E. (T.) pendleburyi Karny, 1926 (including shape of posterior lobes of last tergite; Fig. 17 ) but with following features: upper rostral tubercle of head with very narrow and almost denticle-like apical part which slightly more separated from rest of this tubercle (i.e., barely curved upwards; Fig. 6 ); tegmina with posterior branch on RA and anterior branch on RS ending almost at tegminal apex ( Fig. 7 ), and with stridulatory apparatus as in Figs 8, 9 , 16 ; abdominal apex with last tergite lacking any spine-like process directed downwards and located at apex of each posterolateral lobe, with cerci more or less similar to those of E. (T.) pendleburyi and E. (T.) appendiculata Brunner-Wattenwyl, 1898 in shape, with genital plate having narrow and very deep posteromedian notch as well as long and strongly curved posterolateral lobes (each of these lobes rather wide and flattened in proximal portion, rather thin and curved upwards in middle portion, almost same but straight in most part of distal portion, somewhat widened and lamellar as well as rounded in apical part, and having distinctly denticulated inner edge of distal portion as well as rather short and low ventral or posterior subapical keel; Figs 17–20 ), and with membranous genitalia.

Female unknown.

Length (in mm). Body 21; body with wings 44; pronotum 4.9; tegmina 34.5; hind femora 20.

COMPARISON. The new species is distinguished from E. (T.) pendleburyi (from Perak) mainly by the male genital plate more deeply notched, and by the distal portions of its posterolateral lobes more straight as well as with subapical keels and more widened apical parts; from E. (T.) major (from Vietnam and South China), by this plate with denticulated distal portions of the posterolateral lobes and with rounded and lamellar apical parts (vs each of these portions is without denticles and with two apical lobules); from E. (T.) appendiculata (from Sumatra), by the absence of any ventral spine-like process on the apical part of each posterior lobe of the male last tergite; and from all other species of this subgenus, by wider (not almost spine-like) or less widely distant posterior lobes of the male last tergite.

ETYMOLOGY. The new species is named after the Tembeling River situated very near its type locality .

Figures

Figs 1–9. Elbenia, male: 1–5 – E. (Sulapteron subgen. n.) kendariensis sp. n. (pronotum somewhat deformed); 6–9 – E. (Tamdaopteron) tembelingi sp. n. Head with pronotum and fore leg, anterior/dorsolateral view (1, 2, 6); left tegmen (3, 7); dorsal field of left (4, 8) and right (5, 9) tegmina.

Figs 10–20. Elbenia, male: 10–15 – E. (Sulapteron subgen. n.) kendariensis sp. n. (last tergite slightly deformed); 16–20 – E. (Tamdaopteron) tembelingi sp. n. Stridulatory vein of male left tegmen from below (10, 16); male abdominal apex from above (11, 17), from above and slightly laterally (12), from below (13, 18), from side (15, 20), and from behind (19); apical part of right lobe of male genital plate, inner (medial) view (14).