Lipotactes (Lipotactes) alienus similajau, Gorochov, 2021

Gorochov, A. V., 2021, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 14, Far Eastern Entomologist 434, pp. 1-25 : 6-7

Lipotactes (Lipotactes) alienus similajau Gorochov, subsp. n.

http://zoobank.org/NomenclaturalActs/ 1F069938-17BD-4042-8BF0-EE5279AFCF58

Figs 4–6 , 30–33 , 78

MATERIAL. Holotype – ♂, Malaysia: Borneo I., Sarawak State, ~ 30 km from

Bintulu Town , Similajau National Park, 3º25ʹ26ʹʹN, 113º13ʹ59ʹʹE, primary forest not far from sea, almost sea level, 12–16.XI 2016, A. Gorochov, M. Berezin, E. Tkatsheva, I. Kamskov, N. Grigoreva. Paratypes: 1 ♂, 2 ♀, same data as for holotype .

DESCRIPTION. Male (holotype). Size, coloration and structure of body very similar to those of L. (L.) a. lambir, but some differences present: rostrum between and around lateral ocelli light brown; head dorsum behind rostrum with six longitudinal light brown bands and narrower yellowish stripes between them; pronotum with almost yellowish disc having dark ornament as in L. (L.) a. lambir, but posterior half of hind pronotal lobe and median area between dark oblique stripes completely light brown ( Figs 30, 31 ); genital plate yellowish with light brown styles and traces of darkenings on lateral margins behind styles; tegmina almost identical to those of this subspecies ( Fig. 78 ); last tergite with somewhat narrower and slightly deeper posteromedian notch; cercus with dorsal lobule (tubercle) at base of proximedial hook clearly less widened and almost not curved as well as separated from other branch of this hook by distinctly smaller notch; posterior edge of genital plate between styles more concave ( Figs 4, 5 ).

Variations. Second male with transverse light brown area on pronotal disc behind dark oblique stripes, with darkish dots on middle femur almost indistinct, and with apical part of genital plate barely (but almost completely) darkened (cerci practically identical to those of holotype in structure).

Female. General appearance as in L. (L.) a. lambir including presence of dark stripe on outer surface of proximal third of hind femur, but genital plate almost as in

L. (L.) a. alienus in length and without any apical notch ( Figs 6 , 32, 33 ).

MEASUREMENTS. Length (in mm). Body: ♂ 9–10.5, ♀ 9.5–11.5; pronotum:

♂ 3.8–4, ♀ 2.9–3.1; tegminal parts visible behind pronotum, ♂ 0.6–0.7; hind femora:

♂ 10.5–11, ♀ 11–12; ovipositor 6.5–6.7.

COMPARISON. The new subspecies is most similar to L. (L.) a. lambir but distinguished by the male cercal proximedial hook with the dorsal lobule smaller and less curved as well as less separated from another branch of this hook, and by the female genital plate somewhat longer and without any apical notch (for comparison see Figs 3 and 6 ). From the nominotypical subspecies, L. (L.) a. similajau differs in the female hind femur with a distinct dark outer stripe on its proximal third, and in the female genital plate with its apical part more widely rounded (see

Figs 6 and 9, 10 .

ETYMOLOGY. The new subspecies is named after Similajau National Park, its type locality.

Figures

Figs 1–25. Lipotactes spp., schematically: 1–3 – L. (Lipotactes) alienus lambir subsp. n.;

Figs 26–40. Lipotactes spp.: 26–29 – L. (Lipotactes) alienus lambir subsp. n.; 30–33 – L. (L.)

Figs 77–87. Lipotactes spp.: 77 – L. (Lipotactes) alienus lambir subsp. n.; 78 – L. (L.) a.