Elbenia (Elbenia) paradigitata, 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 : 20-22

Elbenia (Elbenia) paradigitata Gorochov, sp. n.

https://zoobank.org/NomenclaturalActs/ 38C1EC5E-2738-4E0D-BE1F-9E6CD79468F3

Figs 86–88, 97–101

MATERIAL. Holotype – ♂, Malaysia, Borneo I., Sabah State, Trus Madi Mt, ~ 1000 m, primary/secondary forest, at light, 13–25. V 2007, A. Gorochov ( ZIN). Paratypes: 2 ♂, same data as for holotype ( ZIN) .

DESCRIPTION. Male (holotype). General appearance very similar to that of E. (E.) carinata sp. n. and E. (E.) apicata sp. n. Coloration uniformly greenish with dark brown spots on tegmina and light brown to brown marks on legs and cerci as in E. (E.) carinata sp. n. Tegminal stridulatory apparatus as in Figs 86–88; last tergite with a pair of rather long (almost spine-like) posterior lobes situated very near each other and directed backwards in parallel; epiproct, paraprocts and cerci also as in these species, but very small apical cercal Figs 92–120. Elbenia (Elbenia) : 92–96 – E. (E.) serraticauda Heb. ; 97–101 – E. (E.) paradigitata sp. n.; 102–104 – E. (E.) eudigitata sp. n.; 105–107 – E. (E.) neodigitata sp. n.; 108–110 – E. (E.) modesta Br. -W.; 111, 112 – E. (E.) brevixipha Br. -W.; 113 – E. (?E.) fusca Karny ; 114 – E. (?E.) fissa Karny ; 115–117 – E. (E.) bakeri (Karny) ; 118–120 – E. (E.) digitata Karny. Male abdominal apex from above (92, 98, 102, 105, 117, 118), from below (93, 99, 101, 103, 106, 109, 113, 116, 119), from side (94, 100, 104, 107, 110, 111, 115, 120) and from more or less behind (97, 108, 112); last sternite and genital plate of female from below (95); female abdominal apex with ovipositor from side (96); genital plate and cerci of male from below (114). [108–112, after Brunner-Wattenwyl (1898); 113–120, after Karny (1923, 1926b).]

parts slightly curved upwards (Figs 97–100); genital plate not very long but gradually narrowing to very narrow apical portion having moderately high lateral lamellar parts of characteristic shape in profile (Figs 97, 99, 100): this apical portion with a pair of rather small and rounded (lobule-like) posterodorsal projections, a pair of shorter but more widely rounded posteroventral lobes, and comparatively short posteromedian notch (in artificially flattened genital plate, this notch rather wide and having sinuate edges; as in Fig. 101).

Variations. Paratypes with darker (blackish) spot on both tegmina or on only right tegmen; one male with genital plate artificially flattened, i.e. having lateral parts spread (Fig. 101).

Female unknown.

Length (in mm). Body 23–27; body with wings 55–57; pronotum 5–5.5; tegmina 41–43; hind femora 21–22.5.

COMPARISON. The new species is similar to E. (E.) bakeri , E. (E.) digitata , E. (E.) modesta , E. (E.) fusca and E. (E.) fissa in a rather short male genital plate almost not protruding beyond the cercal apices as well as lacking elongated and curved upwards appendices, but it is distinguished from them by the presence of distinct spine-like posterior lobes on the male last tergite (from E. fusca and E. fissa ), or by a narrower interspace between the posterior lobes of the male last tergite (from E. bakeri , E. digitata and E. modesta ; compare Figs 98– 101 and 108–110, 115–120). From E. (E.) carinata sp. n., E. (E.) semicarinata sp. n., E. (E.) apicata sp. n., E. (E.) nigrosignata , E. (E.) brevixipha , E. (E.) tenera , E. (E.) borneensis and E. (E.) fraser , the new species differs in the male genital plate with short (but not more or less long) posterior lobes.

ETYMOLOGY. The new species name originates from the Latinized Greek prefix “ para- ” (near) and the species name “digitata ” due to the similarity of the male genital plate to that of E. digitata .