Symmetroraggea dirempta (Karsch, 1889) Karsch, 1889

Massa, Bruno, 2015, New genera, species and records of Phaneropterinae (Orthoptera, Phaneropteridae) from sub-Saharan Africa, ZooKeys 472, pp. 77-102 : 81

Taxon classification Animalia Orthoptera Phaneropteridae

Symmetroraggea dirempta (Karsch, 1889) comb. n. Figs 14-19

Material examined.

Madagascar, Nossi bé, Hildabrandt (♂ holotype of Symmetroraggea dirempta ) (MfN); it bears a label with a former identification: laevicauda Brunner.

Redescription.

Eyes oval, with fronto-genal carinae below them (Figs 15-16); fastigium clearly narrower than first antennal segment, sulcate above. Flat pronotum, without lateral carinae, with the exception of the last part of metanotum, whose margins are sharp (Figs 15-16). Very narrow tegmina, with posterior margin nearly straight (Fig. 14), Radius of wing just forked before media, the fore base is black, as well as a longitudinal line bordering the stridulatory area and extending posteriorly with a wide marking on left tegmen (Fig. 17); coxae armed, 6 spines on ventral margin of fore femora, 6 inner spines plus 1 spur and 6 outer spines plus 1 spur on ventral margins of fore tibiae, fore tibiae dorsally rounded, not sulcate, mid femora with 7 outer spines, mid tibiae with 12 outer spines plus 1 spur and 5 inner spines plus 1 spur, hind femora with 7 outer and 4 inner spines, hind tibiae with 13 outer and 11 inner spines plus 3 spurs in each side; male tenth tergite posteriorly not protruding, with hind margin concave, male supra-genital plate protruding, with very acuminate apex, cerci stout, long, in-curved, with pointed apex, male sub-genital plate exceeding cerci, long, triangular, posteriorly narrowed, with deeply cut apex, whose margins are parallel and close between them (Figs 18-19); titillators2 are present and show a long, downcurved and hooked apex, with 2 spines basally and 3-4 small spines dorsally on each border (Figs 18-19).

Distribution.

Symmetroraggea gen. n. is known only from Madagascar, where only one species has been recorded, Symmetroraggea dirempta (Krauss, 1889), of which only the type is known.