Allotrella Gorochov, 2006

Gorochov, A. V., 2025, Taxonomy of Podoscirtinae (Orthoptera: Gryllidae). Part 17: some Madagascan genera and Varitrella, Russian Entomological Journal 34 (1), pp. 19-36 : 23

Genus Allotrella Gorochov, 2006

NOTES. The genus was established for only type species ( A. analogica ) known from a single male [ Gorochov, 2006]. In their original descriptions, the male genitalia of another species ( O. beccalonii ) were erroneously described and illustrated as those of A. analogica , but the real male genitalia of A. analogica were mixed with those of O. beccalonii as well as described and illustrated as belonging to the latter species [ Gorochov, 2006: figs VIII, 6–9]. Thus, it is necessary to correct the original description of Allotrella which is erroneous in relation to the male genitalia. The external morphology of Allotrella ( Figs 21–23 ) has been described correctly and is not redescribed here, but for the male genitalia, I must give a new description: these genitalia ( Figs 30–32 ) are rather short and with a short epiphallus; epiphallic dorsum has a pair of spine-like apical processes directed upwards; epiphallic apical parts (located under these processes) are lobe-like but shortly and widely rounded in profile; ectoparameres are very small (partly reduced); rachis is moderately long and mostly membranous/ semimembranous but with an additional dorsal fold having a pair of small membranous lobules and a pair of ventral stylet-like plates; sclerotized endoparameres are small and widely separated from each other, but their semisclerotized posterior arms are elongate and contacted with the aforementioned fold, and endoparameral apodemes are long and rather thin; formula is divided into a rather large distal plate (with four sclerotized arms: much longer anterior arms, and short posterior ones fused with the stylet-like plates of the rachis by semisclerotized interspaces) and a smaller proximal sclerite (it is triangular and with a moderately long anterior apodeme); rami are well developed, rather long and sclerotized.

Figures

Figs 21–29. Allotrella and Fryerius, male: 21–23 — A. analogica sp.n.; 24–29 — F.(Brevitrella) intermedius sp.n. Head in front (21, 24); head with pronotum, metanotal gland, fore legs and bases of partly spread wings from above (22, 25); right tegmen (23, 26); abdominal apex from above and slightly behind (27); anal plate from behind and slightly below (28); genital plate from below (29). Рис. 21–29. Allotrella и Fryerius, самец: 21–23 — A. analogica sp.n.; 24–29 — F.(Brevitrella) intermedius sp.n. Голова спереди (21, 24); голова с переднеспинкой, метанотальной ЖелеЗой, передними ногами и основаниЯми раЗдвинутых крыльев сверху (22, 25); правое надкрылье (23, 26); вершина брюшка сверху и слегка сЗади (27); анальнаЯ пластинка сЗади и слегка сниЗу (28); генитальнаЯ пластинка сниЗу (29).

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.