Neozvenella brunnea Gorochov, 2021

Gorochov, A. V., 2021, Taxonomy of Podoscirtinae (Orthoptera: Gryllidae). Part 14: the genera Ocellotrella gen. n. and Neozvenella from Madagascar, Russian Entomological Journal 30 (4), pp. 381-389 : 384

Neozvenella brunnea Gorochov , sp.n.

Figs 6–8 , 16 , 24–25 , 37–42 .

MATERIAL EXAMINED. Holotype – ♂, Madagascar, Toamasina Prov., Moramanga Distr., Analamazaotra Forest Station near Andasibe Vill. (18°56´S, 48°25´E), ~ 900 m, at light, 11– 28.II.2013, A. Gorochov, L. Anisyutkin ( ZIN). Paratypes: 2 ♂, same data as for holotype, but 8–20.III.2013, A. Gorochov ( ZIN) .

DESCRIPTION. Male (holotype). Body rather small for this genus. Coloration: head, thorax, legs and abdomen brown with greyish ocelli, almost dark brown very small stripes along medial edges of lateral ocelli, light brown to yellowish antennae (except for scapes) and mouthparts, light brown all sternites and genital plate, intermediate between brown and light brown pterothoracic dorsum and pleurites as well as hind femora and cerci, and a pair of yellowish spots on anal plate ( Figs 6–8 , 41 ); tegmina transparent with greyish tinge, small dark brown spot near plectrum, brown diagonal vein in stridulatory apparatus as well as 2 medial chords and distal half of area between these chords, a few small light brown spots along distal edge of mirror and venation of distal half of dorsal field (but some of these veins darker, almost brown), yellow most part of M, greyish brown R and stock of Sc, and brownish yellow branches of Sc ( Fig. 16 ). External structure of body typical of Neozvenella , but scape almost 2.2 times as wide as rostrum between antennal cavities, lateral ocelli rather small and oval as well as slightly larger than round median ocellus ( Figs 6–7 ), metanotal gland non-pubescent as well as with large and moderately deep central concavity having a pair of small and obliquely transverse tubercles at centre ( Fig. 8 ), both tympana open and oval (inner tympanum rather large, almost 1.5 times as long as outer tympanum and slightly wider than latter one), tegmina approximately reaching middle of hind tibiae and with venation as in Fig. 16 , hind wings distinctly protruding beyond tegminal apices, anal plate with large but barely distinct semimembranous area and with distal part somewhat similar to that of Ocellotrella gen. n. ( Fig. 41 ), and genital plate with distal part gradually narrowing to narrowly rounded apex but longitudinally folded and looking as very narrow from below ( Fig. 42 ). Genitalia ( Figs 24 , 37–40 ) similar to those of N. picta Gorochov, 2004 , but posteromedian epiphallic process with clearly less projected posteromedial lobules around very narrow (but not very deep) posteromedian notch and with posterolateral lobules hooked and reaching almost apices of previous lobules (in N. picta , latter lobules almost not hooked and distinctly not reaching apices of posteromedial lobules), each posterolateral epiphallic projection distinctly wider in distal half and with much narrower notch between this projection and its apical hook, and rachis distinctly less arcuate in profile and very narrowly rounded but not clearly acute at apex (in dorsal view) as well as with very small subapical dorsal tubercle (in lateral view; Fig. 39 ); spermatophore as in Fig. 25 .

Variations. Male paratype with lateral ocelli whitish, pronotal disc having barely lighter areas, area between R and M in tegmina brownish grey, cerci light greyish brown, and each posterolateral epiphallic projection of genitalia near apex of its apical hook having distinct angular denticle .

Female unknown.

Length in mm. Body 10–11; body with wings 18–19; pronotum 1.8–2; tegmina 13–14; hind femora 8–8.5.

COMPARISON. The new species is most similar and related to N. picta , but it differs from the latter species in almost uniformly brown coloration of head and pronotum, darker legs and abdomen, and the male genital characters listed above (in the description of this species). From all the other congeners, the new species is distinguished by the same characters as N. picta (except for coloration).

ETYMOLOGY. This species name is the Latin word “brunnea ” (brown) due to the color of the body.

Figures

Figs 1–13. Ocellotrella gen.n. and Neozvenella Gor., males: 1–5 — O. sharovae sp.n.; 6–8 — N. brunnea sp.n.; 9–11 — N. adunca sp.n.; 12–13 — N. paraucta sp.n.; 1, 6, 9 — head; 2, 5, 7, 10, 12 — head with pronotum and fore leg; 3 — proximal part of fore tibia with inner tympanum; 4, 8, 11, 13 — metanotal gland; 1, 6, 9 — frontal view; 2, 4, 7–8, 10–13 — dorsal view; 5 — lateral view. Рис. 1–13. Ocellotrella gen.n. и Neozvenella Gor., самцы: 1–5 — O. sharovae sp.n.; 6–8 — N. brunnea sp.n.; 9–11 — N. adunca sp.n.; 12– 13 — N. paraucta sp.n.; 1, 6, 9 — голова; 2, 5, 7, 10, 12 — голова с переднеспинкой и передней ногой; 3 — проксимальнаЯ часть передней голени с внутренним тимпанумом; 4, 8, 11, 13 — метанотальнаЯ желеЗа; 1, 6, 9 — спереди; 2, 4, 7–8, 10–13 — сверху; 5 — сбоку.

Figs 14–19. Ocellotrella gen.n. and Neozvenella Gor., males: 14–15 — O. sharovae sp.n.; 16 — N. brunnea sp.n.; 17 — N. adunca sp.n.; 18 — N. paraucta sp.n.; 19 — N. aucta Gor.; 14 — right tegmen in resting position; 15 — right tegmen in partly spreading position and right hind femur; 16–19 — right tegmen in completely spreading position; 14 — dorsal view; 15 — lateral view. Рис. 14–19. Ocellotrella gen.n. и Neozvenella Gor., самцы: 14–15 — O. sharovae sp.n.; 16 — N. brunnea sp.n.; 17 — N. adunca sp.n.; 18 — N. paraucta sp.n.; 19 — N. aucta Gor.; 14 — правое надкрылье в состоЯнии покоЯ; 15 — правое надкрылье в частично расправленном состоЯнии и правое Заднее бедро;16–19 — правое надкрылье в полностью расправленном состоЯнии; 14 — сверху; 15 — сбоку.

Figs 20–29. Ocellotrella gen.n. and Neozvenella Gor., male: 20–23 — O. sharovae sp.n.; 24–25 — N. brunnea sp.n.; 26 — N. adunca sp.n.; 27–29 —N.paraucta sp.n.; 20–22, 24, 26–27 — genitalia; 23, 25, 28 — spermatophore; 29 — left posterolateral projection of epiphallus and distal part of ectoparamere; 20 — dorsal view; 21 — ventral view; 22–28 — lateral view; 29 — lateral and slightly dorsal view. Рис. 20–29. Ocellotrella gen.n. и Neozvenella Gor., самец: 20–23 — O. sharovae sp.n.; 24–25 — N. brunnea sp.n.; 26 — N. adunca sp.n.; 27–29 — N. paraucta sp.n.; 20–22, 24, 26–27 — гениталии; 23, 25, 28 — сперматофор; 29 — левый Заднебоковой выступ Эпифаллуса и дистальнаЯ часть Эктопарамера; 20 — сверху; 21 — сниЗу; 22–28 — сбоку; 29 — сбоку и слегка сверху.

Figs 30–55. Ocellotrella gen.nov. and Neozvenella Gor.: 30–36 — O. sharovae sp.nov.; 37–42 —N. brunnea sp.nov.; 43–46 — N. adunca sp.nov.; 47–50 — N. paraucta sp.nov.; 51–55 — N. aucta Gor.; 30–31, 37–38, 43–44, 47–48, 51–52 — male genitalia with or without foreparts; 32 — rachis and scheme of sagittal section of more proximal part of male genitalia; 33, 40, 46, 50, 54–55 — left ectoparamere or its distal part; 34, 41 — male anal plate; 35, 42 — male genital plate; 36 — apical part of ovipositor; 39 — distal part of rachis; 45, 49, 53 — distal half of epiphallus; 30, 34, 37, 41, 43, 47, 51 — dorsal view; 31, 35, 38, 42, 44, 48, 52 — ventral view; 32–33, 36, 39–40, 45–46, 49–50, 53–55 — lateral view.