Pseudoteratura (Pseudoteratura) tridenta Liu, 2020

Jin, Xingbao, Liu, Xianwei & Wang, Hanqiang, 2020, New taxa of the tribe Meconematini from South-Pacific and Indo-Malayan Regions (Orthoptera, Tettigoniidae, Meconematinae), Zootaxa 4772 (1), pp. 1-53 : 32

45) Pseudoteratura (Pseudoteratura) tridenta Liu sp. n.

Holotype ♂ (left front and middle, right hind legs lost): BORNEO: SARAWAK / Nanga Pelagus / nr. Kapit 180–/ 585m, 7–14.VIII.’58; T. C. Maa / Collector / BISHOP; Secondary forest

Paratype 1♀ (left hind leg lost): NORTH BORNEO ( SE)/ Forest Camp , 19 km / N. of Kalabakan / 15.X.1962; K.J. Kuncheria Collector / BISHOP

Paratype 1♀ (all left and right middle legs lost): BRITISH N. BORNEO/ Tawau Residency / Kalabakan R., Tawau/ 48km W, 9–18.IX.’58; T. C. Maa / Collector/ BISHOP; Primary Forest

Paratype 1♀ (left front and hind, right middle and hind legs lost): N. BORNEO: TAWAU / Quoin Hill, Forest/ Camp 1, 3– 5km WSW/ of Cocoa Res. Sta./ 9–20.VII.1962; Y. Hirashima / Collector / BISHOP

Description. Body small and slender ( Fig. 21a, b ). Head with fastigium of vertex narrowly conical, middle furrow distinct. Length of apical segment of maxillary palpi equal or slight longer than subapical one, with slightly widened apex.

Pronotum disc narrow and long, covering base of tegminal mirror, transverse sulcus indistinct, with a yellowish median stripe, dorsal disc roundly turned into lateral plate, with indistinct humeral sinus. Fore leg with coxal spur relatively short. Tegmina and wings long. Hind tibia with 3 pairs of apical spurs.

Male 10 th tergite with posteriomedian notch quite deep. Epiproct elongate lobe with a posteriomedian notch, directed backward ( Fig. 21 c–e). Male cerci club-shaped with trident apex, upper lobe much longer than lower bifurcated branch ( Fig. 21e, f ). Subanal plate with 2 broad lobes tapering toward apex ( Fig. 21f ), fused with subgenital plate. Subgenital plate short and broad with round lateral terminal, small posteriomedian notch, styli comparatively long and close to each other ( Fig. 21f ). Male genitalia not dissected.

Female subgenital plate broad and short with a small posteriormedian notch and a distinct transverse fold. Ovipositor moderate long, nearly straight with acute apex ( Fig. 21b ).

Measurements (mm). Body: ♂ 8.1, ♀ 9.9–11.0; Pronotum: ♂ 3.5, ♀ 3.2–3.4; Tegmina: ♂ 9.0, ♀ 14.3–15.1; Hind femora: ♂ 9.5, ♀ 10.0–10.2; Ovipositor: 7.5–7.9.

Comparison. This species close to Pseudoteratura (Pseudoteratura) raggei (Bey-Bienko, 1971) (new male described in this paper, see bellow) from Sarawak, Borneo, but male epiproct, cerci, subgenital plate, subanal plate and female subgenital plate are all different from in details as showed in figures.

Etymology. Species name refers to male cerci in trident shape.

Figures

FIGURE 21. Pseudoteratura (Pseudoteratura) tridenta Liu sp. n. a. male in lateral; b. female in lateral; male abdominal terminal: c., d. dorsal view, e. lateral view, f. venteral view; g. female subgenital plate.