Xiphidiopsis ( Xiphidiopsis ) dichotoma Jin, 2020

28) Xiphidiopsis ( Xiphidiopsis) dichotoma Jin View in CoL sp. n.

Holotype ♂ (right front and middle leg, both antennae lost): P.I., CAMARINES/ SUR, Mt., Iriga / 500–600m, 6.IV.62; H.M. Torrevillas / Collector / BISHOP

Paratype ♀ (left front and middle leg, both antennae lost): Labeled as Holotype

Diagnosis. General morphology typical of the genus. Male last abdominal tergite forming a single (unpaired) middle process, thick, bend strongly downward, apical part enlarged into 2 asymmetric triangular lobes, left one larger than right one; cerci complicated, asymmetry, a thin branch lobe and a broad apical lobe ( Fig. 14a, c, d View FIGURE 14 ), subgenital plate short, posterior margin slightly projected, with comparatively long styli ( Fig. 14e View FIGURE 14 ).

Female 9 th abdominal tergite without enlarged lateral posterior margin, subgenital plate elongate, narrowing toward end, posterior margin with a small notch in middle ( Fig. 14f View FIGURE 14 ), ovipositor thin sword shape, long and nearly straight, ventral valve smooth, without apical hook.

Measurement (mm). Body: ♂ 10.2, ♀ 13.0; Pronotum: ♂ 3.8, ♀ 3.5; Tegmina: ♂ 18.7, ♀ 20.8; Hind femora: ♂ 9.8, ♀ 11.1; Ovipositor: 9.6.

Comparison. Very close to X. ( X.) monstrosa Karny, 1924 from southern Sumatera, but differs in detailed features of male last tergite and cerci. The obtuse triangular lobe of female subgenital plate also is similar to X. ( X.) bicarinata Jin sp. n. from Philippines, but is much shorter.

Etymology. Species name refers to the shape of apical part of male last tergite forming 2 asymmetric triangular lobules.