Pseudogoetia constanti, Massa, 2017

Massa, Bruno, 2017, New genera, species and records of Afrotropical Phaneropterinae (Orthoptera, Tettigoniidae) preserved at the Royal Belgian Institute of Natural Sciences, Bruxelles, Zootaxa 4358 (3), pp. 401-429 : 425-426

Pseudogoetia constanti n. sp.

Figs 17A–17E

Material examined and depository. Democratic Republic of Congo, Elisabethville (now Lubumbashi ) 27.IV.1939, H.J. Brédo (light) (♂ holotype, 1♂ paratype, without hind legs) ( RBINS).

Measurements. Body length: 30.8–31.4; length of pronotum: 8.5–9.1; height of pronotum: 8.8–9.1; length hind femur: 33.0; length of hind tibia: 35.6; length of tegmina: 55.9–60.3; width of tegmina: 13.9–14.0.

Diagnosis. This is a large Phaneropterinae vaguely similar to a Goetia , but has open tympana on inner side of fore tibiae, a whitish stripe beyond the eye, the stridulatory vein of left tegmen elevated above wing plane, dorsal margin of fore tibiae round (not furrowed), fore coxae armed.

Description of male. Colour. Brown with green tegmina, one brown stripe on the anterior margin of tegmina, one evident white stripe beyond the eyes ( Fig. 17A ). Short head, wide round eyes, fastigium verticis short, of the same size of the scapus of antennae, sulcate. Prozona of pronotum slightly narrower than metazona; anterior margin of pronotum hardly rounded, posterior margin rounded, with evident lateral excisions; pronotum longer than high, integuments rough. Lower margin of lateral lobes of pronotum undulate. Tegmina wider than pronotum length, leathery, with the apical margins obliquely cut; hind wings longer than tegmina. Stridulatory vein of left tegmen elevated above wing plane. Stridulatory file, 1.6 mm long, with more than 100 evenly spaced and elevated teeth ( Fig. 17B ). Dorsal margin of fore tibiae round (not furrowed). Fore coxae armed. Ventral margins of fore tibiae with 3–4 small spines; tympanum of fore tibiae open on inner and on outer side. Mid tibia with 5–6 spines ventrally on outer and 2–3 on inner margin; dorsal inner margin with 3 spines. Ventral margins of femora furrowed, fore femora with 3–4 spines on inner ventral margin, mid femora with 2 small spines on outer ventral margin, hind femora armed ventrally with 11–12 brown black tipped spines on outer and 7–8 on inner margins. Hind tibiae furrowed, longer than the femora. Lower margin of hind genicular lobe bearing an accessory spine. Meso and metasternum rounded. Supra-anal plate of the male triangular and rounded, male cerci long, in-curved and pointed ( Figs 17C, 17D, 17E ). Subgenital plate narrow, stout, three-keeled, its posterior margin concave, with stout and flat styli ( Figs 17D, 17E ).

Etymology. This species is named after Jerome Constant (Directorate Taxonomy and Phylogeny RBINS), who facilitated the study of the Orthoptera material within a Synthesys project carried out by the author at RBINS.

Remarks. Table 1 shows the affinities among some genera of large Phaneropterinae living in tropical Africa and Madagascar. Pseudogoetia has in common with Madagascarantia Massa 2017 the dorsal margin of fore tibiae not furrowed and open tympana on inner side of fore tibiae; in addition, it has in common with Goetia purpurea Massa, 2013 and most Holochlora Stål, 1873 the stridulatory vein of left tegmen elevated above wing plane. This ensemble of characters does not allow to understand the actual affinities with the other genera and the tribe to which it may belong.

Figures

FIGURE17. Pseudogoetiaconstanti n. gen.n. sp. A) Lateral view of the male holotype.B) Stridulatoryfile of left tegmen.C) DorSal view of male laSt abdominal SegmentS and cerci.D) Lateral view of male laSt abdominal SegmentS and cerci.E) Ventral view of the male Subgenital plate.