Elbenia (Elbenia) neodigitata, 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 : 24

Elbenia (Elbenia) neodigitata Gorochov, sp. n.

https://zoobank.org/NomenclaturalActs/ 09F5052D-2ECD-4024-B3AE-8B48F61438A7

Figs 89–91, 105–107

MATERIAL. Holotype – ♂, Malaysia, Borneo I., Sabah State, Trus Madi Mt, ~ 1000 m, primary/secondary forest, at light, 13–25.V 2007, A. Gorochov ( ZIN).

DESCRIPTION. Male (holotype). Coloration and structure of body similar to those of E. (E.) eudigitata sp. n. but with following characteristic features: dorsal tegminal fields with light brown most part of basal area, but stridulatory vein and two veins along (near) plectrum in left tegmen brown with reddish tinge, and small distomedial part of basal area in right tegmen as well as mirror and membrane between chords in this tegmen yellowish and more or less semitransparent (Figs 90, 91); structure of tegminal stridulatory apparatus as in Figs 89–91, with stridulatory vein in left tegmen very convex but dorsally flattened (not keel-like contrary to that of E. eudigitata sp. n.); last tergite with posterior spine-like lobes parallel, located near each other, directed backwards, with subapical parts barely widened, and with apical ones slightly curved downwards (Figs 105, 107); cerci with apical parts intermediate between those of this species and E. (E.) paradigitata sp. n. (Figs 105–107); genital plate slightly not reaching cercal apices, with moderately short and angular posteromedian notch which very narrow in normal condition and having barely S-shaped lateral edges in spred condition, as well as with posterolateral lobes narrower (lower) than in both aforementioned congeners and E. (E.) digitata but in profile more similar to those of latter species (see Figs 107 and 120).

Female unknown.

Length (in mm). Body 20; body with wings 41; pronotum 5.1; tegmina 33; hind femora 16.7.

COMPARISON. The new species is similar to E. (E.) paradigitata sp. n., E. (E.) eudigitata sp. n., E. (E.) digitata and E. (E.) bakeri in a rather short male genital plate, but it differs from them in a dorsally flattened (not keel-like) stridulatory vein of the left tegmen and the above-listed characters of the male abdominal apex (from the two first species), as well as a distinctly narrower interspace between the male last tergite lobes and a narrower (lower) male genital plate in profile (from the two other species). From E. (E.) fraser with a somewhat similar shape of the latter plate in profile, E. (E.) neodigitata sp. n. is distinguished by this plate clearly shorter and not protruding beyond the cercal apices (vs. distinctly protruding beyond them), and from all the other species of this genus, by the different structure of the male last tergite and/or of the male genital plate.