Leiodontocercus vicii, Massa, 2020

Massa, Bruno, 2020, Revision of the Afrotropical genus Leiodontocercus (Orthoptera, Tettigoniidae, Phaneropterinae) with a description of four new species, ZooKeys 951, pp. 47-65 : 47

Leiodontocercus vicii sp. nov. Figs 4 , 9 , 21 , 22

Material examined.

Central African Republic, Dzanga-Ndoki NP, Lake 1, 8-10.II.2012, SANGHA2012 Team (♂ holotypus) (BMPC); Dzanga-Ndoki NP, Lake 1, 20-23.II.2012 (hand catching and light), SANGHA2012 Team (1♂ paratypus) (BMPC).

Description.

Male. General habitus and colour. Predominantly green-brown, two lateral black spots on anterior margin of pronotum and corresponding hind margin of head, black stripe interrupted on the posterior margin of pronotum, abdomen yellow, last abdominal tergite orange, antennal segments reddish, legs yellowish, hind tibiae yellowish with black rings. Head and antennae. Eyes oval-roundish, prominent, antennae long and thin. Thorax. Anterior margin of pronotum slightly concave, posterior margin straight. Lower margin of pronotal lobes rounded. Tegmina very narrow. Central part of the stridulatory file consists of ca 50 teeth (Fig. 4 ). The stridulatory area of the left tegmen less protruding backwards than in the other species (Fig. 9 ). Right tegmen without mirror. Legs. Fore coxae armed. Tympana on fore tibiae open on outer, closed on inner side. Fore femora with 8 inner ventral spines, fore tibiae with 4 inner and outer ventral spines. Mid femora armed with 7 outer ventral spines, mid tibiae dorsally with 2 inner spines, 7 spines on outer and inner ventral margins. Hind femora with 7-8 outer and inner ventral spines, hind tibiae straight with many ventral spines. 2 pairs of small spines on the outer and inner knees of hind femora. Abdomen. Cerci stout and apically swollen, with the apex down curved and its margins serrated (Figs 21 , 22 ). Posterior margin of the subgenital plate nearly straight, styli absent.

Female. Unknown.

Measurements (mm).

Body length: 13.5-15.5; length of pronotum: 3.1-3.2; depth of pronotum: 2.8-2.9; length of hind femora: 20.0-20.1; length of tegmina: 24.7-24.8; width of tegmina: 2.3-2.4.

Etymology.

Leiodontocercus vicii sp. nov. is named after the nickname of my son-in-law Vincenzo Cigna, as sign of his esteem and sincere friendship.

Distribution.

Presently it is only known from the Dzanga-Ndoki National Park (Central African Republic).

Figures

Figures 4 - 8. Stridulatory file and detail of teeth in the following species of Leiodontocercus: 4 L. vicii sp. nov. 5 L. spinicercatus sp. nov. 6 L. condylus 7 L. philipporum sp. nov. 8 L. muticus sp. nov.

Figures 9 - 14. Dorsal view of the head, pronotum and the stridulatory area of the following species of Leiodontocercus: 9 L. vicii sp. nov. 10 L. spinicercatus sp. nov. 11 L. muticus sp. nov. 12 L. philipporum sp. nov. 13 L. condylus 14 L. angustipennis (holotypus).

Figures 21 - 26. Frontal and lateral view of cerci of the following species of Leiodontocercus: 21, 22 L. vicii sp. nov. 23, 24 L. spinicercatus sp. nov. 25, 26 L. muticus sp. nov.