Tetraconcha fijalkowskii, Massa, Bruno, 2017

Massa, Bruno, 2017, Revision of the tropical African genus Tetraconcha (Orthoptera: Tettigoniidae: Phaneropterinae) with the description of ten new species, Journal of Orthoptera Research 26 (2), pp. 211-232 : 219

Tetraconcha fijalkowskii sp. n. Figs 53-56, 92

Material examined and depository.

-Central African Republic, N’Doki, shore of Lake 1, 20-23.II.2012, 02°28' 51.0N 016°13' 04.5E (UV trap), P. Moretto (1♂ holotype) (BMPC); Central African Republic, Dzanga-N’Doki National Park, Boda-N’Gotto, 20.I.2005 (light trap), P. Annoyer (1♂ paratype) (PACT).

Color.

-Head and pronotum yellow-green, abdomen yellow-brown, tegmina with a black spot at their base, green with yellow spots between veinlets.

Description.

-Males. Head and antennae: Fastigium of vertex narrow, sulcate above, separated from fastigium of frons. Eyes rounded, well projecting. Antennae long. Legs: Fore coxae armed with a small spine. Fore tibiae furrowed dorsally, distinctly widening above tympanum, conchate on both sides. Fore femora armed on inner ventral side with 8-9 spines, fore tibiae with 4-5 spines + 1 spur on inner and on outer ventral sides, 2-3 spines + 1 spur on outer dorsal side, mid femora armed with 5 spines on outer ventral side, mid tibiae with 13 spines on outer and inner ventral sides + 1 spur on each side, and 4 spines + 1 spur on inner dorsal side, hind femora armed with 5 small spines on outer ventral side, hind tibiae with many spines on ventral and dorsal sides + 3 spurs on each side. Thorax: Pronotum narrowing anteriorly, flat above, anterior margin incurved, posterior margin rounded, humeral sinus well developed, lobes of pronotum rounded. Tegmina narrow with rounded apices. Wings longer than tegmina. Stridulatory area of left and right tegmina shown in Fig. 53, veinlets of left tegmen in Fig. 92; stridulatory file angularly arched and composed of ca. 120 very dense and evenly spaced teeth in the proximal part (ca. 2/3 of the length), and 6 widely spaced teeth in the distal part (ca. 1/3 of the length) (Fig. 54). Abdomen: Subgenital plate short with a little concavity, its appendices close together, cerci stout and incurved (Figs 55-56).

Female. Unknown.

Measurements.

-Cf. Tables 1 and 2.

Diagnosis.

- T. fijalkowskii sp. n. is characterised mainly by the presence of yellow spots on tegmina (Fig. 92), its stridulatory area of the left and right tegmina (Fig. 53), its peculiar stridulatory file (Fig. 54), its subgenital plate with narrow appendices (Figs 55-56). Note also the short size of the hind femur.

Etymology.

- T. fijalkowskii sp. n. is named after Jean-Louis Fijalkowski, logistics helper in Bangui during the preparation of the expedition Sangha 2012.

Distribution.

-Known only from Central African Republic.