Elbenia (Tamdaopteron) daedala, Gorochov, 2023

Gorochov, A. V., 2023, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 16, Far Eastern Entomologist 485, pp. 7-28 : 13

Elbenia (Tamdaopteron) daedala Gorochov, sp. n.

https://zoobank.org/NomenclaturalActs/ D231E1E7-13FE-4163-BE1E-B2F57D96A5EE

Figs 4–6 , 29–32

MATERIAL. Holotype – ♂, Indonesia: Sumatra I., Aceh Prov. not far from North Sumatra Prov., environs of Ketambe Vill. on Alas River near Gunung Leuser National Park , 3º41–42ʹ N, 97º38–39ʹ E, 300–500 m, primary forest, at light, 29.I–8.II 2023, A. Gorochov , M. Omelko, A. Fomitshev ( ZIN) . Paratypes: 1 ♂, same data as for holotype ( ZIN) ; 1♂, same data but 15–24.IV 2018, A. Gorochov , M. Berezin, I. Kamskov, E. Tkatsheva ( ZIN) .

DESCRIPTION. Male (holotype). General appearance similar to that of E. (T.) ryabovi sp. n. Coloration also uniformly greenish, but basal area in left dorsal tegminal field as well as stridulatory vein of left tegmen blackish, basal area in right dorsal tegminal field with blackish two thirds, and all spines colored as in above-mentioned species. Structure of tegminal stridulatory apparatus as in Figs 4–6 ; last abdominal tergite similar to that of this species, but its apical processes less simple in shape (each with proximal two thirds thicker and having dorsal keel posteriorly changed into rounded but not large dorsolateral lobe, and with distal third thin and looking as spinule with narrowly rounded apex) as well as slightly curved downwards/medially, and interspace between them slightly narrower than in E. (T.) ryabovi sp. n. and without any additional notch (Figs 29, 31, 32); epiproct, paraprocts and cerci almost as in this species, but each cercus distinctly S-shaped (Figs 29, 30); genital plate with longer lobes S-shaped in profile, but each of these lobes with triangular subapical widening and thin and acute (spine-like) apical part directed backwards, as well as with a row of distinct denticles along medial edges of subapical widening and apical part (Figs 29–32).

Variations. Other males with less dark pattern on tegmina (stridulatory vein of left tegmen and venation of basal area in both tegminal dorsal fields light brown, but cell membranes in this area from light brown to brown).

Female unknown.

Length (in mm). Body 24–26; body with wings 49–49; pronotum 5.2–5.4; tegmina 35– 36; hind femora 20.5–21.5.

COMPARISON. The new species is most similar to E. (T.) robinsoni from Malay Peninsula in a clearly S-shaped male genital plate in profile, but it differs from the latter species in the processes of the male last tergite longer and different in shape, and the lobes of the male genital plate with subapical widenings and spine-like apical parts as well as denticles on the medial surfaces (vs. subapical widenings and medial denticles on these lobes are absent, and the apex of each this lobe with two teeth; Figs 33–35). From all other species of this subgenus, E. (T.) daedala sp. n. differs in the male genital plate clearly S-shaped in profile.

ETYMOLOGY. The new species name is the Latinized Greek word “daedala ” (intricate, bizarre) due to the bizarre shape of the male copulatory structures.

Figures

Figs 1–12. Elbenia, male: 1–3 – E. (Tamdaopteron) ryabovi sp. n.; 4–6 – E. (T.) daedala sp. n.; 7–9 – E. (T.) subrecta sp. n.; 10–12 – E. (Elbenia) carinata sp. n. Stridulatory apparatus of left (1, 5, 7, 11) and right (2, 6, 8, 12) dorsal tegminal fields from above; teeth of stridulatory vein of left tegmen from below (3, 4, 9, 10).