Mecopoda paucidens Ingrisch, Su & Heller, 2021

Heller, Klaus-Gerhard, Baker, Ed, Ingrisch, Sigfrid, Korsunovskaya, Olga, Liu, Chun-Xiang, Riede, Klaus & Warchałowska-Šliwa, Elżbieta, 2021, Bioacoustics and systematics of Mecopoda (and related forms) from South East Asia and adjacent areas (Orthoptera, Tettigonioidea, Mecopodinae) including some chromosome data, Zootaxa 5005 (2), pp. 101-144 : 137-140

Mecopoda paucidens Ingrisch, Su & Heller sp. nov.

Holotype, male, East Timor: Maubisse , elev. 1431 m [8°50’S, 125°36’E], 1–10 vi 1965, coll. R.N. Ferreira. ANIC . Other specimens studied: see below.

Diagnosis. The new species differs from all other species of the genus so far known by the narrow tegmen combined with the very low number of teeth on the male stridulatory file on underside of the left tegmen ( Fig. 23 ). Member of the M. elongata group.

Description. General habitus of the genus. Medium sized species with narrow tegmina; tegmen moderately curved in midlength, its greatest width 11 mm. Subcosta attached to radius except at very base, it separates before the curvature that brings both veins close to the anterior margin of tegmen. Male: Stridulatory file with 44 (Timor) respectively 50 (Java) teeth. Cerci stout at base, markedly curved mediad and narrow in about apical third, in apical area on internal side with two minute spines. Subgenital plate moderately wide, narrowed from base towards midlength; divided into two lobes, apical incision about 0.28 times the length of the subgenital plate; styli narrow, moderately long, about 10:22 the length of the apical incision of the subgenital plate.

Measurements (1 male). Body w/wings: 73; body w/o wings: 33; pronotum: 8.8; tegmen: 61; hind femur: 56; tegmen width: 11 mm.

Other specimen studied: Indonesia: Central Java, Gunung Lawu, Tawangmangu , elev. 1000–1200 m (7°39’S, 111°7’E), 28 iii 1993, coll. S. Ingrisch, 3261458 (CI) .

Male cerci not very stout at base but little stronger than in the other species from Java, narrow apical area moderately curved, at internal side just before and at the end with two minute acute black teeth, the apical tooth hardly larger than the preapical tooth.

Measurements (1 male). Body w/wings: 65; body w/o wings: 35; pronotum: 7.5; tegmen: 55; hind femur: 43; tegmen width: 11.5 mm.

Song. Unknown.

Derivatio nominis. Named according to its stridulatory file which carries only relatively few (Latin pauci) teeth (Latin dens=tooth). Noun in apposition.

Figures

FIGURE 23. Mecopoda paucidens sp. nov.: habitus (A, D), mirror area of right tegmen (B, E), stridulatory file of left tegmen (C, F).—A–C: male from Gunung Lawu, Java; D–F: holotype male from Timor. The thin lines mark the measuring tracks (A–E) or the borders between bulks of five teeth (C, F).