Lipotactes (Lipotactes) alienus lambir, 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 : 4-6

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

http://zoobank.org/NomenclaturalActs/ 34C55F01-0E09-4B47-9FCD-6D164DE31677

Figs 1–3 , 26–29 , 77

MATERIAL. Holotype – ♂, Malaysia: Borneo I., Sarawak State, Lambir Hills

National Park in environs of Miri Town, 100–300 m, forest, 29.III–1.IV 2012, A.

Gorochov, M. Berezin, E. Tkatsheva, I. Kamskov. Paratypes: 2 ♂, 5 ♀, same data as for holotype .

DESCRIPTION. Male (holotype). Body moderately small for this genus. Coloration yellowish with following marks: epicranial dorsum between eyes and behind rostrum, a pair of dots in anterolateral corners of clypeus, narrow ring at apex of scape, almost entire pedicel, dorsal half of pronotum (except for a few marks on anterior half of disc: anterior margin and sinuate transverse line near it as well as a pair of short oblique stripes behind latter line dark brown; median longitudinal stripe between latter stripes as well as transverse stripe between anterior margin and sinuate line yellowish), moderately numerous dots on fore and middle femora and a group of dots in middle of dorsal part of hind femur, distal parts of spines and spurs on fore and middle tibiae as well as small spots on all tarsi, most part of abdominal tergites (except for yellowish areas on lateral parts and brown anterior stripe on dorsal part of each tergite) as well as epiproct and paraprocts, distal half of cercus and most part of its proximedial hook, and styles of genital plate light brown; antennal flagellum brown to dark brown; a pair of distolateral longitudinal spots and one subdistal dorsal longitudinal stripe on hind femur as well as spines and spurs on hind tibia brown; lateral margins of genital plate before styles brown to light brown (Figs

26, 27). Scape approximately 1.5 times as wide as rostrum between antennal cavities; pronotum with hind lobe reaching distal edge of tegminal mirror; tegmina semitransparent with stridulatory membranes transparent; left tegmen with very short stridulatory vein, rather small both mirror and loop-like cell behind stridulatory vein, and narrow apical area ( Fig. 77 ); last tergite with rather wide posteromedian notch; epiproct moderately small, roundly triangular; paraproct also small but with rather thin and short apical tubercle; cercus moderately short, with narrow (almost acute) apex and characteristic proximedial hook (this hook rather thin but not long, with slightly widened and curved but distinctly shorter dorsal lobule which located very near base of this hook and separated from it by moderately wide notch; Figs 1, 2 ); genital plate with rather long and thin styles as well as with slightly concave posterior edge between styles (each style almost 1.5

times as long as distance between bases of styles; Fig. 1 ); genitalia completely membranous.

Variations. Other males barely lighter or barely darker, with posterior pronotal edge sometimes slightly not reaching distal edge of tegminal mirror, and with structure of cerci indistinguishable from that of holotype.

Female. General appearance as in males, but head dorsum with six darker (brown)

longitudinal stripes between eyes, most part of anterior surface of epicranium rose,

spots under rostrum (a pair) and under eyes (a pair) light brown, dark brown spots on dorsolateral parts of pronotum more numerous, outer side of proximal third of hind femur with brown or dark brown oblique (almost longitudinal) stripe, median band along all ptrothoracic and abdominal tergites light brown, band along each lateral part of these tergites brown to dark brown (but these tergites also with yellowish spots between these bands and on ventrolateral parts of 6–7 posterior abdominal tergites; Figs 28, 29 ), wings absent, posteromedian notch of last tergite distinctly narrower, genital plate short (transverse) and with apical part rather widely rounded but having small posteromedian notch ( Fig. 3 ), and ovipositor with acute apex and a few very small denticles on ventrodistal edge.

4–6 – L. (L.) a. similajau subsp. n.; 7, 8 – L. (L.) a. kubah subsp. n.; 9, 10 – L. (L.) a.

alienus ? Br.-W.; 11–15 – L. (L.) sumatranus sp. n.; 16 – L. (L.) digitatus (Karny) ; 17, 18 –

L. (L.) virescens Ingr. from Malay Peninsula (17) and from Sumatra (18); 19–24 – L. (L.)

macrognathus (Ingr.) from Sabah (19, 20 – Tawau Hills National Park; 21, 22 – Trus Madi

Mt; 23, 24 – Sandakan Distr.); 25 – L. (Neolipotactes) montanus Ingr. Male abdominal apex from above (1, 4, 7, 11, 25); proximedial hook of male left cercus (or this hook with tubercle or additional tubercle near it) from behind and slightly above (2, 5, 8, 12, 16, 17, 18); female genital plate or its distal part from below (3, 6, 9, 10, 13–15); male left cercus from above

(19, 21, 23); distal part of male genital plate from above (20, 22, 24). Abbreviations: m –

membranous parts near cerci and around anus; p – paraproct. [25 – after Ingrisch (1995),

modified: without left cercus and some other details.]

MEASUREMENTS. Length (in mm). Body: ♂ 10–11, ♀ 11–13; pronotum: ♂

3.9–4.1, ♀ 2.7–3; tegminal parts visible behind pronotum, ♂ 0.7–1; hind femora: ♂

11–12, ♀ 11–12.5; ovipositor 6.3–6.7.

COMPARISON. The new subspecies differs from the nominotypical one in the male anal plate with the posteromedian notch somewhat less deep, the dorsal lobule

(tubercle) of the male cercal proximedial hook slightly more widened and curved,

the posteromedian edge of the male genital plate less deeply notched, the female hind femur with the proximal third having a dark stripe on its outer surface, and the female genital plate insignificantly shorter and more widely rounded apically (for comparison see Figs 3 and 9, 10 ). It is possible also that these subspecies may be two different species.

ETYMOLOGY. This new subspecies is named after Lambir Hills National Park where its type material was collected.

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.