Dapanera occulta, Massa, Bruno, 2015

Massa, Bruno, 2015, Taxonomy and distribution of some katydids (OrthopteraTettigoniidae) from tropical Africa, ZooKeys 524, pp. 17-44 : 27-29

Taxon classification Animalia Orthoptera Tettigoniidae

Dapanera occulta sp. n. Figs 31, 32, 39, 43, 47

Material examined and depository.

Central African Republic, Dzanga-Ndoki National Park, Ndoki, Lake 1, UV trap 1, 02°28' 40.5N, 016°13' 02.6E, 31.I.-2.II.2012, P. Moretto (♂ holotype) (MSNG); same data (♂ paratype); Central African Republic, Dzanga-Ndoki National Park, Ndoki, Lake 1, UV trap 1, 02°28' 40.5N, 016°13' 02.6E, 10-11.II.2012, P. Moretto (♂ paratype); same data, 11-12.II.2012 (2♂ paratypes); same data, 20-23.II.2012 (♂ paratype); Central African Republic, Dzanga-Ndoki National Park, Ndoki, border of Lake 1, UV trap 02°28' 51.0N, 016°13' 04.5E, 13-14.II.2012, P. Moretto (♂ paratype) (BMCP).

Colour.

Yellow-green. Femora yellow with or without longitudinal brown stripe on outer side.

Description.

Male. Medium sized. Head and antennae: fastigium of vertex narrow, furrowed above, separated from fastigium of frons that is tuberculated. Eyes rounded, well projecting (Fig. 47). Legs comparatively long. Fore coxae armed with a well-developed spine. Fore tibiae furrowed on upper margin, distinctly widening above tympanum, which is closed on inner and open on outer side. Fore femora armed on inner ventral margin with 3-4 spines, fore tibiae with 3 spines plus 1 spur on inner and outer ventral margins, 1 spur on outer dorsal margin, mid femora armed with 5 spines on outer ventral margin, mid tibiae with 8 on outer and 4-5 spines on inner ventral margins, plus 1 spur on each side, hind femora armed with 7-8 spines on outer and inner ventral margins, hind tibiae with many spines on ventral and dorsal margins and 3 spurs on each side. Thorax: pronotum little narrowing anteriorly, flat above, anterior margin straight, posterior margin rounded, humeral sinus evident, lobes of pronotum rounded. Tegmina comparatively wide with rounded apices. Wings longer than tegmina. Stridulatory region of left tegmen narrow, stridulatory file curved and composed of 70-75 teeth (Fig. 43). Abdomen: tenth tergite with straight hind margin; sub-genital plate long and deeply divided into two lobes; styli stout and long (Figs 31-32). Cerci long, thin, in-curved and sinuous, with small apical spine, longer than sub-genital plate (Figs 31, 32, 39).

Measurements.

Males. Body length: 21.6-24.1; pronotum length: 5.5-5.6; pronotum height: 4.6-4.8; hind femur: 18.7-20.8; tegmina: 32.9-34.9.

Diagnosis.

Dapanera occulta sp. n. is mainly characterized by its cerci that in the other species of the genus Dapanera are stout and never sinuous; in addition, the styli are stout and short, while in Dapanera genuteres and Dapanera eidmanni they are slender and longer (Figs 33-36); the sub-genital plate is deeply divided, more than in Dapanera irregularis , Dapanera eidmanni and Dapanera genuteres (in the latter two species it is very little divided) (Figs 39-42). The stridulatory files of Dapanera genuteres , Dapanera eidmanni and Dapanera irregularis are less curved, also composed of 70-75 teeth or more; the teeth are larger in Dapanera genuteres and Dapanera irregularis than in Dapanera occulta sp. n., while in Dapanera eidmanni as small as in Dapanera occulta sp. n. (Figs 43-46).

Female. Unknown.

Etymology.

From Latin (occulta = hidden), female adjective; the series of specimens remained unidentified and hidden in a box containing long series of Dapanera irregularis and Dapanera genuteres collected in the same localities during the same expedition (see Massa 2013).