Zvenellomorpha (Azvenellomorpha) separata Gorochov, 2022

Gorochov, A. V., 2022, Taxonomy of Podoscirtinae (Orthoptera: Gryllidae). Part 15: Asymmetrella gen. n., Zvenellomorpha and Ultratrella from Madagascar, Russian Entomological Journal 31 (3), pp. 218-229 : 224-227

Zvenellomorpha (Azvenellomorpha) separata Gorochov , sp.n.

Figs 47–59 .

MATERIAL EXAMINED. Holotype — ♂, Madagascar, Toamasina Prov., Moramanga Distr., Analamazaotra Forest Station near Andasibe Vill . ~ 900 m, at light, 8–20.III.2013, A. Gorochov ( ZIN) . Paratypes: 16 ♀, same data as for holotype, but 11.II– 20.III.2013, A. Gorochov, L. Anisyutkin ( ZIN) ; 1 ♂, 2 ♀, same province and district, ~ 10 km NW of Andasibe Vill., Torotorofotsy

Forest Reserve, ~ 1000 m, at light, 22.II–11.III.2013, A. Gorochov ( ZIN).

DESCRIPTION. Male (holotype). General appearance similar to that of all species of Zvenellomorpha s. str. Body coloration yellowish with following pattern: eyes greyish; dorsum of epicranium greyish brown with a pair of yellowish longitudinal stripes running from rostral apex to yellowish lateral ocelli and from these ocelli to posterior edge of head (along medial edges of eyes and behind them), with a pair of short and thin light longitudinal stripes between previous stripes on posterior part of epicranial dorsum, with also light median line on posterior two thirds of this dorsum ( Figs 47– 49 ); upper parts of membranes of antennal cavities and small areas on upper parts of genae behind eyes slightly darkened; scape with brown dorsal band along medial edge, darkish ventral stripe along same edge and darker (greyish brown) ventromedian spot in apical part; rest of antenna with brown to light brown spots in proximal and middle parts as well as with almost uniformly light brown distal part; pronotum with dark brown disc having a few thin lightish marks, with slightly darkish longitudinal band on each lateral lobe (this band occupying upper two thirds of this lobe but separated from dark disc by longitudinal light stripe), with a few small barely darker marks on above-mentioned darkish band, and with several dark and light spots along anterior edge of this lobe; legs with small and sparse dark and darkish spots ( Figs 47–49 ); tegmen with yellowish grey dorsal field having darker (greyish brown) venation as well as yellowish both dot near plectrum and narrow stripe along lateral edge of distal half of this field, with light greyish (semitransparent) lateral field having greyish brown longitudinal veins and whitish crossveins, and with humeral region between these fields having dark (brown) proximal half of M and whitish crossveins as well as almost semimembranous membranes ( Fig. 51 ); hind wings light greyish with somewhat darkened distal parts (in rest condition); anal plate with a pair of rather large greyish brown spots in its laterodorsal corners ( Fig. 50 ); cerci with very small and moderately numerous darkish marks. Eyes rather large, slightly higher than long ( Figs 47–49 ); rostrum practically angular in profile; scape approximately 2.3 times as wide as space between antennal cavities ( Fig. 49 ); pronotum as in Figs 47–48 ; metanotal gland absent; fore leg with only inner tympanum which oval, almost as long as width of fore tibia, and almost as wide as half of latter width; tegmina distinctly protruding beyond apices of hind femora and with venation as in Fig. 51 ; hind wings clearly protruding beyond tegminal apices; anal plate small, transverse, truncate apically, widely rounded distolaterally and with large and almost longitudinally oval membranous median area ( Fig. 50 ); genital plate more or less similar to that of Zvenellomorpha s. str. but with slightly wider distal lobule having almost angular apex. Genitalia ( Figs 52–54 ): epiphallus more or less similar to that of other subgenera of this genus but with dorsoapical processes having much smaller (poorly distinct) distal tubercles, and with ventroapical lobules much shorter and more hooked; ectoparameres distinctly shorter; anterior sclerotized ribbon of formula longer and narrower than in Zvenellomorpha s. str. (i.e. not plate-like), located clearly less parallel to median part of rest of this formula than in the latter subgenus and in Euzvenellomorpha subgen.n. Spermatophore as in Fig. 55 .

Variations. Second male distinguished from holotype by insignificantly less contrast coloration of head, lighter pronotal disc, yellowish brown tinge of tegmina, somewhat different venation of their dorsal field ( Fig. 56 ), as well as genitalia with slightly smaller anterolateral (curved posteriorly) parts of epiphallus and barely lower lateral plates of formula.

Female. Coloration and structure of body practically as in males, but scape somewhat lighter, dorsal tegminal field with 9–10 almost straight (barely oblique) longitudinal veins as well as rather numerous and partly irregular crossveins, genital plate almost as wide as long and somewhat narrowing in distal half as well as with distinct roundly angular posteromedian notch ( Fig. 57 ); ovipositor normal and with drilling distal part as in Figs 58–59 .

Length in mm. Body: ♂ 14.5–15.5, ♀ 15–17.5; body with wings: ♂ 24–25.5, ♀ 26–29; pronotum: ♂ 2.7–2.9, ♀ 3.1– 3.4; tegmina: ♂ 17.5–18.5; ♀ 18–20; hind femora: ♂ 13–14, ♀ 13.5–15; ovipositor 9–9.5.

COMPARISON. The new species differs from all the other congeners in the same characters as the subgenus Azvenellomorpha subgen.n. (see the subgeneric key above).

ETYMOLOGY. This species name is the Latin word “separata ” (separate) due to some distinct differences in the structure of the male genitalia.

Figures

Figs 47–59. Zvenellomorpha (Azvenellomorpha) separata sp.n.:47–48 — head with pronotum and fore leg (47 — from side; 48 — from above); 49 — head in front; 50 — anal plate from above; 51 — right tegmen; 52–54 — genitalia (52 — from side; 53 — from above; 54 — from below); 55 — spermatophore from side; 56 — wings with middle leg and antennal part in rest position from above; 57 — genital plate from below; 58–59 — distal part of ovipositor (58 — from below; 59 —from side); 47–56 — male (47–55 — holotype; 56 — paratype); 57– 59 — female. Рис. 47–59. Zvenellomorpha (Azvenellomorpha) separata sp.n.:47–48 — голова с переднеспинкой и передней ногой (47 — сбоку; 48 — сверху); 49 — голова, спереди; 50 — анальнаЯ пластинка, сверху; 51 — правое надкрылье; 52–54 — гениталии (52 — сбоку; 53 — сверху; 54 — сниЗу); 55 — сперматофор, сбоку; 56 — крыльЯ со средней ногой и частью антенны в положении покоЯ, сверху; 57 — генитальнаЯ пластинка сниЗу; 58–59 — дистальнаЯ часть Яйцеклада (58 — сниЗу; 59 — сбоку); 47–56 — самец (47–55 — голотип; 56 — паратип); 57–59 — самка.