Selivinga Storozhenko, 2019

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 : 101

Genus Selivinga Storozhenko , gen. nov.

Type species Selivinga tribulata Storozhenko , sp. nov.

Description. Body medium-sized for Australian Batrachideinae . Antennae filiform. Antennal grooves situated between lower margins of eyes ( Fig. 18 ). Compound eyes not elevated above pronotum in lateral view. Frontal ridge, in lateral view, almost straight with extremely shallow concavity above lateral ocelli ( Figs. 16 , 21 ); in frontal view this ridge broad; lateral carinae of frontal ridge distinctly diverging downwards but almost parallel below antennal grooves ( Fig. 18 ). Pronotum short; anterior margin of pronotum, in dorsal view, narrowly triangular and far produced over head; apex of posterior process of pronotum excised ( Figs. 17 , 22 ). Median carina of pronotum strongly elevated, in profile almost arch-like ( Figs. 16 , 21 ), in cross-section almost lamellate ( Fig. 18 ). Hind margin of lateral lobes of pronotum with shallow lower sinus; tegminal sinus absent; lower edge of infrascapular area almost straight ( Figs. 16 , 21 ); lower part of lateral lobe of pronotum, in dorsal view, forming rounded lobule ( Figs. 17 , 22 ). Tegmina and hind wings absent. Fore and mid femora with lower carinae straight; dorsal side of fore femora sulcate. Upper carina of hind femora distinctly serrated, without lappets. First tarsal segment of hind legs distinctly longer than third one. Female subgenital plate with deep median furrow bordered with ridges ( Fig. 19 ). Valves of ovipositor narrow, dentate ( Fig. 20 ).

Differential diagnosis. The new genus is most similar to Vingselina in the arch-like median carina of pronotum and distinctly diverging downwards lateral carinae of frontal ridge, but it differs from the latter genus in the position of antennal grooves, the shape of lateral lobes and posterior process of the pronotum (in Vingselina , the antennal grooves situated below lower margins of the eyes, the lateral lobes of pronotum with vestigial lower sinus, and the apex of posterior process rounded). Selivinga gen. nov. differs from Vilma in the shape of lateral lobes of the pronotum (in Vilma , the lower part of lobe triangular). Selivinga gen. nov. is easy recognizable from Anaselina gen. nov. in the arch-like median carina of the pronotum (in Anaselina gen. nov., the median pronotal carina is low) and differs from Paraselina gen. nov. in the position of antennal grooves, which are situated distinctly below the lower margins of eyes in the latter genus. Selivinga gen. nov. resembles the genus Tuberfemurus Zheng, 1992 (subfamily Cladonotinae ) in the strongly elevated in profile and lamellate in cross-section median carina of the pronotum. Tuberfemurus consists of four species from China and Thailand ( Zheng, 1992; Storozhenko & Dawwrueng, 2014; Cigliano et al., 2018) and is characterized by the presence of three projections on the lower outer keel of the hind femora, while in Selivinga gen. nov., the hind femora are without such projections.

Composition. This genus includes the type species only.

Etymology. This name is an anagram of the genus name Vingselina . Gender feminine.

Figures

Figs 16–20. Selivinga tribulata sp. nov., female: 16, 17, body, lateral (16) and dorsal (17) views; 18, head and pro- notum, frontal view; 19, 20, apex of abdomen, ventral (19) and lateral (20) views.

Figs 21–23. Selivinga tribulata sp. nov., male: 21, 22, body, lateral (21) and dorsal (22) views; 23, apex of abdo- men, lateral view.