Pterapotrechus longicornis (Tepper, 1892)

Figs 1, 2, 4

Gryllacris longicornis Tepper, 1892: 146.

Paragryllacris beta Griffini, 1909: 329 syn. nov.

Gryllacris longicornis — Kirby 1906: 147.

Paragryllacris longicornis — Karny 1928: 214.

Pterapotrechus longicornis — Karny 1937: 73. — Cadena-Castañeda 2019: 99.

Paragryllacris beta — Karny 1928: 206.

Pterapotrechus beta — Karny 1937: 73. — Cadena-Castañeda 2019: 99.

Diagnosis. —

This is the larger of the two species in the genus Pterapotrechus (Fig. 4). Body longer than 30 mm. Tegmina longer than 40 mm, clearly projecting beyond the abdomen. Ovipositor long (> 25 mm) and only weakly recurved upwards (Figs 1 D, 2 A). Frons entirely pale (Figs 1 C, 2 B). Female subgenital plate trapezoidal, with two keels converging at the base (Figs 1 B, 2 D). Male unknown.

Habitat and distribution. —

Rainforests in Australia’s Northern Territory.

Etymology. —

From the Latin longus (adj.), ‘ long’, and cornum (noun), ‘ horn’, after the insect’s very long antennae “ exceeding four times the length of the body ” (Tepper 1892). ‘ Longicornis ’ is an adjective of the third declension.

Material examined. —

( See also Suppl. material 1: table S 2) Holotype: AUSTRALIA • ♀; Northern Territory, Palmerston; 12.5°S, 131.0°E; 10 m. a. s. l.; 3 Aug. 1886; S. J. Magarey leg.; SAMA 14-1093.

Other material. AUSTRALIA • 1 ♀; Northern Territory, Port Essington; 11.3°S, 132.2°E; 0 m. a. s. l.; OUM ORTH 1002 (Holotype of Paragryllacris beta Griffini, 1909) .

Description. —

Refer to the original description in Tepper 1892. See also Figs 1, 2 in this work.