Neozvenella adunca 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 : 386

Neozvenella adunca Gorochov , sp.n.

Figs 9–11 , 17 , 26 , 43–46 .

MATERIAL EXAMINED. Holotype – ♂, Madagascar, Toamasina Prov., Moramanga Distr., Analamazaotra Forest Station near Andasibe Vill . (18°56´S, 48°25´E), ~ 900 m, at light, 8– 20.III.2013, A. Gorochov ( ZIN). Paratypes: 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). Body medium-sized for this genus. Head and pronotum light brown with following pattern: ocelli and area between them yellowish (this area continuing also behind ocelli but not reaching posterior edges of eyes); posterodorsal part of head and pronotal disc with sparse greyish brown dots; lower half of head and small median spot at apex of rostrum as well as lateral lobes of pronotum yellowish to almost whitish, but maxillary palpi with greyish areas and small browhish grey spots, and lower parts of epicranium and lateral lobes of pronotum with rather dense dark brown dots; antennae with blackish large ring on apex of scape and small ring in region of pedicel, and with greyish antennal flagellum having numerous small whitish spots; pronotal disc also with very dark dense and large dots along its anterior and posterior edges ( Figs 9–10 ). Pterothoracic dorsum ( Fig. 11 ) and pleurites as well as thoracic sternites and legs yellowish to whitish, but legs with numerous dark dots and small spots partly fused with each other on dorsal and distal parts of hind femur as well as completely fused on ventral and lateral surfaces of hind tibia (dorsal surface of this tibia with 3 large greyish areas); tegmina transparent with light brown to yellowish venation (except for almost whitish M), brown area between R and M interrupted by several whitish spots in regions of crossveins, and a few small light brown to greyish brown marks on dorsal field ( Fig. 17 ); abdomen brown to light brown with whitish sternites and genital plate (anterior abdominal sternites with light greyish brown areas, posterior ones with brownish grey dots, and genital plate with a pair of small darkish marks in proximal half) as well as posterolateral parts of two last tergites and distal half of anal plate (apical part of this plate somewhat darkened), and with contrastingly spotted cerci. External structure of body similar to that of N. aucta Gorochov, 2004 ; however, scape approximately 1.2 times as wide as rostrum between antennal cavities, ocelli almost as in N. brunnea sp.n., metanotal gland also as in this species but with central tubercles more rounded ( Fig. 11 ), both tympana almost equal to each other in size and similar to outer tympanum of N. brunnea sp.n. in size and shape, tegmen as in this species in length and with venation as in Fig. 17 , anal plate also almost as in this species, and genital plate with distal part more or less similar to that of Ocellotrella gen. n. Genitalia ( Figs 26 , 43–46 ) also similar to those of N. aucta , but posteromedian epiphallic process with distinctly wider apex having clearly wider and rounded median notch, base of this process with a pair of rather large lateral tubercles directed backwards ( Fig. 45 ), posterolateral epiphallic projections moderately narrow and strongly arcuate (hook-like) as well as with very small denticle on each posterior edge ( Fig. 45 ), ectoparameres longer as well as with thin and acute apical hook directed more backwards than downwards ( Fig. 46 ), rachis with thinner and longer apical hook as well as with less widened subapical part ( Figs 26 , 43–44 ).

Female unknown.

Length in mm. Body 11.5–12.5; body with wings 20–21; pronotum 2.2–2.4; tegmina 14–15; hind femora 8.5–9.5.

COMPARISON. The new species is most similar and related to N. aucta but distinguished from the latter species by the absence of any large or moderately large dark marks on the both head dorsum and pronotal disc, and the above-listed characters of the male genitalia (for comparison see Figs 43– 46 and 51–55 ). From all the other congeners, the new species differs in the same characters of body structure as N. aucta .

ETYMOLOGY. This species name is the Latin word “adunca ” (hooked) due to the shape of the posterolateral epiphallic projections.

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.