Tetraconcha aristophanousi, 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 : 220-221

Tetraconcha aristophanousi sp. n. Figs 61-64, 83, 95

Material examined and depository.

-Ivory Coast, Taï Nat. Park, Res. Station 5-10.VII.2015, 05°49'59.8"N, 07°20'32.0"W (light trap), M. Aristophanous, P. Moretto, E. Ruzzier (1♂ holotype, 3♂ paratypes) (NHM); Ivory Coast, Man, Mt. Tonkoui (1171m) 12-18.VII.2015, 07°26'41.9"N, 07°38'40.8"W (light trap), M. Aristophanous, P. Moretto, E. Ruzzier (1♀ paratype) (NHM); Ivory Coast, Man, Mt. Tonkoui (1200m) 29.VI-1.VII.2014, (UV trap), P. Moretto (1♂ paratype) (MSNG); Ivory Coast, Touba, Biémasso 10-11.VII.2013, 08°04'19.9"N, 07°33'05.6"W (UV trap), P. Moretto (1♂ paratype); Ivory Coast, Taï Nat. Park, Res. Station 19-20.III.2017 (light trap, platform 40 m), B. Massa (2♂ paratypes); Ivory Coast, Taï Nat. Park, Res. Station 21.III.2017 (night), S. Danflous (1♀ paratype); Ivory Coast, Taï Nat. Park, Res. Station 4.IV.2017 (light trap), P. Moretto (3♂ paratypes); Ivory Coast, Taï Nat. Park, Res. Station 2-3.IV.2017 (light trap), P. Moretto (4♂ paratypes) (BMPC); Ivory Coast, Taï Nat. Park, Res. Station 2.IV.2017 (light), P. Annoyer (1♂ paratype) (PACT); Sierra Leone, Bumbuna 6.XI.1991, W. Rossi (1♂ paratype) (coll. La Greca, MSNM).

Color.

-Head and pronotum green-brown, abdomen brown, tegmina green with some yellow spots between veinlets, abdomen brown, cerci brown.

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 13-14 spines, fore tibiae with 6 spines + 1 spur on inner and on outer ventral sides, 1-3 spines + 1 spur on outer dorsal side, mid femora armed with 10-12 spines on outer ventral side, mid tibiae with 14-15 spines on outer and inner ventral sides + 1 spur on each side, and 3-4 spines + 1 spur on inner dorsal side, hind femora armed with 7-8 small spines on outer and 1-2 on inner ventral sides, 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. 61, veinlets of left tegmen in Fig. 95; stridulatory file arched and composed of ca. 100 teeth, 75-80 dense and evenly spaced teeth in the proximal half, and ca. 20-22 widely spaced teeth in the distal half (Fig. 62). Abdomen: Subgenital plate long and with a more or less narrow and deep concavity, cerci stout, fairly straight and incurved at the tip (Figs 63-64).

Female. Two females collected in the same area with some males (Mt. Tonkoui and Taï Nat. Park, Res. Station) were available, and it is also possible to describe this sex, which resulted to be clearly different from T. longipes (compare Figs 82 and 83), also described from the Ivory Coast, along the coast next to the border with Ghana. Same characters of the male, with the following differences: Body stout, tegmina wider than in males (see Table 2), tubercle of frons much smaller, and mandibles stouter than in males (Figs 65-66). Coxae armed with a very small spine. Femora brown, some black spots between posterior veinlets of tegmina, 4 big spines on lower side of fore and mid femora, 6 on hind femora. Ovipositor short (2.5 mm) and crenulated at the tip of lower valve. The ratio length/width of tegmina is 3.3.

Measurements.

-Cf. Tables 1 and 2; length of the ovipositor: 2.5 mm.

Diagnosis.

- T. aristophanousi is characterised by its stridulatory area, stridulatory file (Figs 61, 62) and the subgenital plate, long and with a more or less narrow and deep concavity, cerci are stout basally (Figs 63, 64).

Etymology.

-This species is dedicated to Marios Aristophanous, who, together with P. Moretto and E. Ruzzier collected in the Ivory Coast with a light trap many specimens of Orthoptera and made them available to the author.

Distribution.

- T. aristophanousi is known from Ivory Coast and Sierra Leone; it probably covers other intermediate western African countries.