Vingselina Sjöstedt, 1921

Storozhenko, S. Yu., 2019, New taxa of pygmy grasshoppers from Australia with notes on classification of the subfamily Batrachideinae (Orthoptera: Tetrigidae), Zoosystematica Rossica (Zoosyst. Rossica) 28 (1), pp. 94-107 : 95-96

Genus Vingselina Sjöstedt, 1921

Vingselina Sjöstedt, 1921: 14 ; Sjöstedt, 1932: 9; Sjöstedt, 1936: 16; Rehn, 1952: 35; Steinmann, 1973: 168; Yin et al., 1996: 929; Otte, 1997: 11.

Type species Vingselina crassa Sjöstedt, 1921 , by original designation.

Description. Body medium-sized for subfamily Batrachideinae . Antennae filiform. Antennal grooves situated distinctly below lower margins of eyes ( Fig. 3 ). Compound eyes not elevated above pronotum in lateral view. Frontal ridge, in lateral view, rounded with deep concavity near lateral ocelli ( Fig. 1 ); in frontal view this ridge broad; lateral carinae of frontal ridge diverging downwards ( Fig. 3 ). Pronotum short; anterior margin of pronotum, in dorsal view, narrowly triangular and far produced over head; apex of posterior process of pronotum broadly rounded ( Fig. 2 ). Median carina of pronotum elevated, in profile almost arch-like before shoulders and straight behind shoulders ( Fig. 1 ), in cross-section triangular. Hind margin of lateral lobes of pronotum with vestigial lower sinus; tegminal sinus absent; lower edge of infrascapular area barely sinuate ( Fig. 1 ); lower part of lateral lobe of pronotum, in dorsal view, forming rounded lobule ( Fig. 2 ). Tegmina and hind wings absent. Lower carinae of fore and mid femora with two lappets; dorsal side of fore femora distinctly sulcate. Upper carina of hind femora serrated, without lappets. First tarsal segment of hind leg distinctly longer than its third segment. Female subgenital plate with deep median furrow bordered with ridges. Valves of ovipositor narrow, dentate.

Differential diagnosis. This genus is similar to Vilma and Bufonides Bolívar, 1898 but differs from both in the shape of lateral lobes of pronotum (in Vilma and Bufonides , the lower part of lobe triangular). Vingselina is easy recognizable from the other Oriental and Australasian genera ( Saussurella Bolívar, 1887 , Palaioscaria Günther, 1936 and Wiemersiella Tumbrinck, 2014 ) in wide frontal ridge forming so-called “scutellum” (in above listed genera, the frontal ridge narrow with parallel lateral carinae). Apex of posterior process of the pronotum in Vingselina is rounded, while in other Australian Batrachideinae and Bufonides , this apex is excised. Vingselina is most similar to Paraselina gen. nov. in the position of antennal grooves but differs from the latter in the shape of median carina of pronotum and direction of lateral carinae of frontal ridge (see key below). Vingselina is easy recognizable from Anaselina gen. nov. in the almost arch-like median carina of pronotum (in Anaselina gen. nov., the median carina is low and almost straight) and similar in this aspect to Selivinga gen. nov., but differs from the latter in the shape of lateral lobes of pronotum and position of antennal grooves (in Selivinga gen. nov., the lateral lobes of pronotum with shallow lower sinus and antennal grooves situated between lower margins of the eyes). Habitually Vingselina is also similar to the genera Deltonotus Hancock, 1904 and Boczkitettix Tumbrinck, 2014 (subfamily Cladonotinae ), especially in the median carina of pronotum arch-like and far produced over the head. Genus Deltonotus consists of seven species distributed in Sri Lanka, India, China and Vietnam ( Hancock, 1904; Storozhenko, 2011; Cigliano et al., 2018), and Boczkitettix includes two species from Borneo and New Guinea ( Tumbrinck, 2014). Both genera of Cladonotinae are easy recognizable from Vingselina in occurrence of the deep lower sinus on the hind margin of lateral lobes of the pronotum and the keeled dorsal side of the fore and mid femora (in Vingselina , the dorsal side of the fore and mid femora are typical for Batrachideinae and lower sinus absent).

Composition. Genus consists of a type species only.

Figures

Figs 1–8. Batrachideinae, female: 1–3, Vingselina crassa; 4–6, Paraselina multifora; 7, P. trituberculata; 8, P. brunneri. Head and pronotum, lateral (1, 4) and dorsal (2, 5) views; pronotum, lateral view (7, 8); head and dorsal part of pronotum, frontal view (3, 6). [1–3, after photos of Tumbrinck (Cigliano et al., 2018); 4–6, after photos of Rehn (1952); 7, 8, after Sjöstedt (1932)].