Varitrella (Cantotrella) sumatra Gorochov, 2025

Gorochov, A. V., 2025, Taxonomy of Podoscirtinae (Orthoptera: Gryllidae). Part 17: some Madagascan genera and Varitrella, Russian Entomological Journal 34 (1), pp. 19-36 : 29

Varitrella (Cantotrella) sumatra Gorochov , sp.n.

Figs 43–46 , 54–57 .

MATERIAL EXAMINED. Holotype ♂, Indonesia, Sumatra I., North Sumatra Prov., ~ 80 km W of Medan City, environs of Bukit Lawang Vill. om Bohorok River near Gunung Leuser National Park (3º32–33′ N, 98º6–7′ E), 200–300 m, forest, at light, 6–14.IV.2018, A. Gorochov, M. Berezin, I. Kamskov, E. Tkatsheva ( ZIN).

DESCRIPTION. Male (holotype). Coloration and structure of body similar to those of V. (C.) palawanensis and V. (C.) mindanao sp.n. but with some distinct differences. Coloration light grey with characteristic pattern: head dorsum with a few grey longitudinal stripes, three dark grey dots very near ocelli as well as two pairs of such dots near eyes and at rostral apex; antennae with dark grey dorsolateral longitudinal band on each scape as well as sparse and small grey spots on antennal flagellum; rest of head grey with some dark grey spots under rostral apex (near it) and behind eyes as well as with more or less spotted (light brownish grey with brownish grey spots) mouthparts having spots on maxillary palpi very small and almost dark brown ( Fig. 54 ); pronotum with dark grey longitudinal median band on disc, a few dots around this band and most part of lateral lobes (but lower parts of these lobes grey); tegmina with grey, dark grey and yellowish/whitish pattern as in Fig. 55 ; anal plate partly brownish grey with slightly darker posterior half and barely lighter anterior half ( Fig. 56 ); other parts of body, including legs and abdominal venter, also with darkened small spots and dots ( Fig. 57 ). External structure of body almost as in aforementioned congeners, but median ocellus larger (similar to that of V. palawanensis but twice smaller than lateral ocelli and more or less round; Fig. 54 ), tegminal venation as in Fig. 55 , anal plate with median semimembranous area larger than in V. (C.) mindanao sp.n. but smaller than in V. (C.) palawanensis ( Fig. 56 ), and genital plate as in Fig. 57 . Genitalia ( Figs 43–45 ) distinguished from these species by following characters: dorsoapical epiphallic processes longer (from V. mindanao sp.n.), apical epiphallic lobes less high (from V. mindanao sp.n.), ectoparameres much shorter (from V. palawanensis ) and more strongly curved (from all of them), rachis with distal part narrower than in V. palawanensis and wider than in others, apical lobules of this rachial part unseparated from each other and forming lamellar but almost cup-like semicircular plate having a pair of thin posterolateral spines directed partly forwards (from all these congeners), formula somewhat shorter than in V. palawanensis and wider than in others, and rami with posterior parts rather thick. Spermatophore as in Fig. 46 .

Female unknown.

Length in mm. Body 16.5; body with wings 28; pronotum 3.2; tegmina 19; hind femora 13.

COMPARISON. The new species differs from the most similar congeners in the characters listed above. From all other species of this subgenus, it is distinguished by the combination from two characters: the dorsoapical epiphallic processes are located very near each other (i.e. they are not widely spaced), and the apical epiphallic lobules are rather long and distinctly separated from the previous processes.

Figures

Figs 30–46. Allotrella, Fryerius and Varitrella, male: 30–32 — A. analogica; 33–35 — F. (Brevitrella) intermedius sp.n.; 36–42 — V. (Cantotrella) mindanao sp.n., holotype (36–38) and paratypes (39–42); 43–46 — V. (C.) sumatra sp.n. Genitalia from above (30, 33, 36, 39, 43), from below (31, 34, 37, 40, 44) and from side (32, 35, 38, 41, 45); spermatophore (46) and its ampulla (42) from side. Рис. 30–46. Allotrella, Fryerius и Varitrella, самец: 30–32 — A. analogica; 33–35 — F. (Brevitrella) intermedius sp.n.; 36–42 — V. (Cantotrella) mindanao sp.n., голотип (36–38) и паратипы (39–42); 43–46 — V. (C.) sumatra sp.n. Гениталии сверху (30, 33, 36, 39, 43), сниЗу (31, 34, 37, 40, 44) и сбоку (32, 35, 38, 41, 45); сперматофор (46) и его ампула (42) сбоку.

Figs 47–57. Varitrella: 47–53 — V. (Cantotrella) mindanao sp.n., holotype (47–50) and paratype (51–53); 54–57 — V. (C.) sumatra sp.n. Head of male (47, 54) and of female (51) in front; male right tegmen (48); dorsal field of female (52) and male (55) right tegmen; male anal plate from above/behind (49, 56); genital plate of male (50, 57) and of female (53) from below. Рис. 47–57. Varitrella: 47–53 — V. (Cantotrella) mindanao sp.n., голотип (47–50) и паратип (51–53); 54–57 — V. (C.) sumatra sp.n. Голова самца (47, 54) и самки (51) спереди; правое надкрылье самца (48); дорсальнаЯ плоскость правого надкрыльЯ самки (52) и самца (55); анальнаЯ пластинка самца сверху/сЗади (49, 56); генитальнаЯ пластинка самца (50, 57) и самки (53) сниЗу.