Neogryllopsis gorochovi Um Nyobe, Kekeunou & Ma, 2022

Nyobe, Philene Corinne Aude Um, Robillard, Tony, Kekeunou, Sevilor, Ma, Libin, Nzike, Marcelle Mbadjoun & Bilong, Charles Felix Bilong, 2022, Description of two new species of Turanogryllini crickets (Orthoptera, Gryllidae, Gryllinae) from Cameroon, with identification keys for African species, Journal of Orthoptera Research 31 (1), pp. 83-89 : 83

Neogryllopsis gorochovi Um Nyobe, Kekeunou & Ma sp. nov.

Material examined. -

Holotype: CAMEROON • ♂; Center Region, Ongot ; 3°33'816"N, 11°31'913"E; 23 November 2014; secondary forest, pitfall trap; P. Um Nyobe & team leg.; MNHN-EO-ENSIF1727 . Paratypes: CAMEROON • 1♀; same information as holotype; MNHN-EO-ENSIF1751 • 5♂, 12♀; Center Region, Zamakoe ; 3°33'816"N, 11°31'913"E; 19 October 2014; 16 November 2014; 13 December 2014; crops field and forest, pitfall and quadrat traps; MNHN • 4♂, 9♀; Ongot; 3°85'786"N, 11°38'333"E; 27 Sepptember 2014; 26 October 2014; 28 March 2015; 21 April 2015; 23 August 2015; secondary forest, pitfall traps; P. Um Nyobe & team leg.; MNHN • 2♂, 7♀; Ngutadjap ; 02°42'N, 011°03'E; 07 December 2014; 14 February 2015, 14 March 2015, 11 June 2015, 09 May 2015, 12 June 2015; secondary forest, pitfall traps; P. Um Nyobe & team leg.; MNHN .

Etymology. -

The species is dedicated to Dr. Andrej V. Gorochov for his background work on the taxonomy of crickets in general and of Neogryllopsis species in particular.

Diagnosis. -

Characters of the male genitalia of Neogryllopsis gorochovi Um Nyobe, Kekeunou & Ma sp. nov. grouped it in the Sabianus group made up of two species, namely Neogryllopsis sabianus Otte, Toms & Cade, 1988 and Neogryllopsis limpopensis Otte, Toms & Cade, 1988. Neogryllopsis gorochovi can be differentiated from these species by its male genitalia with ectoparamere without setae, short epiphallus, and FW with an undivided round mirror.

Description. -

(Figs 4 , 5 , Table 1 ) Male. Medium size, pale orange-brown. Dorsum of head without a transverse pale band across vertex (Fig. 4A ); top of head without dark markings along inner margins of eyes; forehead dark brown, without white stripe between lateral ocelli; cheeks pale brown (Fig. 4B ) and face brown before epistomal suture and pale after this suture (Fig. 4C ). Pronotum red-brown without ivory-colored band along margins (Fig. 4A ). TI and TII pale, somewhat orange. Hindlegs: FIII with distinct oblique brown stripes on outer surface; TIII pale brown with 5 inner and 5 outer subapical spurs. FWs: dorsum grayish brown, lighter on lateral field; FW length to pronotal length ratio c. 2.3 mm; stridulatory file with 86 teeth; harp with 4 oblique veins; mirror round without a dividing vein; apical field very small (Fig. 4E ). Hind wings absent. Abdomen: Tergites dark brown, with pale posterior margins; venter light brown; cerci dark brown. Male genitalia (Fig. 5 ): Epiphallus well developed but short; lobes of epiphallus in posterior view long, tapering, two points closely apposed, separated by a deep cleft; lateral lobe of epiphallus with long setae near base and without spines; ectoparamere without setae.

Female. Similar to male in color. Size range extends considerably above that of male (Table 1 ). FWs very short, sometimes just visible under edge of pronotum (Fig. 4D ).

Male measurements (holotype, in mm). -

BL, 15.03; PL, 2.60; PW, 4.12; FWL, 6.02; CL, 10.33; FL, 11.82; FW, 3.83; TL, 9.49. Stridulatory file with 86 teeth.

Figures

Fig. 4. Morphology of Neogryllopsis gorochovi sp. nov. A. Male head and pronotum; B. Male lateral view of head and pronotum; C. Male face; D. Female head, pronotum, and FWs; E. Male FW. Scale bars: 7 mm (A); 6 mm (B, E); 5 mm (C); 8 mm (D).

Fig. 5. Male genitalia of Neogryllopsis gorochovi sp. nov.; A. Dorsal view; B. Ventral view; C. Drawing. Scale bar: 500 µm. Abbreviations: epiphallus, epi.; ectoparameres, ect.; endoparameres, end.; ramus, r; virga, v.; posterior emargination of epiphallus, p. e. e.