Selivinga tribulata 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 : 101-104

Selivinga tribulata Storozhenko , sp. nov.

( Figs 16–23 )

Holotype. Female, Australia, Queensland, Cape Tribulation , 16°07'S, 145°26'E, tropical rainforest, 10–30.III.2000, S. Storozhenko.

Paratypes: One male, 2 females, same data as for holotype .

Description. Female. Body robust. Antennae 16–17-segmented, 1.1–1.2 times as long as fore femur; middle segments (seventh–ninth)3.5–5times as long as wide. Fastigium of vertex 2.3–2.4 times as wide as one compound eye seen from above; anterior margin of vertex straight, surpassing frontal line of eyes; lateral margins of vertex parallel; median carina of fastigium short; transverse carinae only traced by few tubercles; supraocular lobes and fossulae absent. Lateral ocelli situated between lower third of eyes. Frontal ridge, in lateral view, almost straight with extremely shallow concavities: one above lateral ocelli, another one below antennal grooves. Width of frontal ridge near base of antennae 2.6–2.8 as great as width of first antennal segment. Pronotum reaching 1/3 of hind femora. Lateral carinae of pronotum weak, parallel; prozona 1.2 times as long as wide. Humero-apical carinae sinuate; interhumeral carinae absent. Infrascapular area long and broad. Fore and mid femora with upper and lower carinae straight. Fore femur 3.9–4.1 times and mid femur 3.8–3.9 times as long as wide. Hind femur stout, 2.6–2.7 times as long as wide; upper carina distinctly serrated; lower carinae gentle serrated; genicular tooth shorter than antegenicular tooth. Dorsal side of hind tibia with 12–17 outer and 9–11 inner spines. First tarsal segment of hind legs 2.4–2.5 times as long as third one (without claws). Subgenital plate elongated, 1.5–1.6 times as long as wide, with deep median furrow bordered with ridges; apex of this plate almost straight. Cerci conical, narrowing apically, with rounded apices, 2.1–2.3 times as long as wide near cercal base. Upper valve of ovipositor 4.4–4.5 times as long as its maximum width; lower valve of ovipositor 6.5–7 times as long as its maximum width.

Body light brown with blackish marks. Head blackish brown. Eyes brown. Antennae light brown. Dorsal side of pronotum light brown with a few small black spots. Lateral lobes of pronotum and infrascapular area completely brown. Fore and mid femora brown with blackish marks. Fore and mid tibiae brown, with two black rings. Fore and mid tarsi brown, with second segment having blackish apex, and with brown claws. Outer side of hind femora above lower outer keel light brown with blackish marks; below lower outer keel, hind femora black. Hind tibiae black. Hind tarsi light brown. Abdomen blackish brown, but sternites and subgenital plate blackish, and cerci brown. Ovipositor light brown.

Male. Body similar to female but smaller. Antennae 16-segmented, 1.2 times as long as fore femur; mid segments of antennae 4.5–5 times as long as wide. Vertex as in female; fastigium of vertex 2.3 times as wide as one compound eye seen from above. Width of frontal ridge near base of antennae 2.4 times as great as width of first antennal segment. Pronotum as in female, but prozona 2 times as long as wide; posterior pronotal process not reaching epiproct. Femora as in female; fore femur 4.1 times, mid femur 4 times and hind femur 2.6 times as long as wide. Upper side of hind tibia with 12 outer and 8–9 inner spines. First tarsal segment of hind legs 2.3 times as long as third one (without claws). Epiproct narrowly triangular, 2.8 times as long as wide near base, with pointed apex. Subgenital plate, in lateral view, short and with pointed apex ( Fig. 23 ); apex of this plate bifurcated in ventral view. Cerci two times as long as wide, widened near base and narrowed in apical part.

Coloruration as in female, but body and pronotum dark brown, epiproct and subgenital plate blackish brown, and cerci brown with light brown apices.

Length (in mm). Body: male 11.3, female 11.3– 11.7; pronotum: male 8.8, female 9.1–9.5; antenna: male 3.2, female 3.0–3.1; fore femur: male 2.5, female 2.5–2.7; mid femur: male 2.8, female 2.7–2.9; hind femur: male 7.2, female 7.9–8.0; ovipositor 2.0–2.1.

Distribution. Australia (Queensland).

Etymology. The new name is the Latin adjective “tribulatum” refers to the type locality, the Cape of Tribulation.

Key to Australian genera of subfamily Batrachideinae

1(4) Antennal grooves situated considerably below lower margins of the eyes ( Figs 3, 6 ). Frontal ridge, in lateral view, with distinct concavity situated near lateral ocelli ( Figs. 1, 4 ).

2(3) Posterior process of pronotum, in dorsal view, with rounded apex ( Fig. 2 ). Median carina of pronotum elevated, in profile almost arch-like before shoulders and almost straight behind shoulders ( Fig. 1 )............................ Vingselina

3(2) Posterior process of the pronotum, in dorsal view, with excised apex ( Fig. 5 ). Median carina of pronotum in profile distinctly elevated before shoulders and strongly depressed behind it ( Fig. 4 ).................................. Paraselina gen. nov.

4(1) Antennal grooves situated between lower margins of eyes ( Figs. 14 , 18 ). Frontal ridge, in lateral view, with weak concavity situated near lateral ocelli ( Figs. 9 , 16 ).

5(6) Median carina of pronotum in profile low and almost straight ( Figs. 9, 12 ), in cross-section triangular. Anterior margin of pronotum, in dorsal view, broadly triangular and almost reaching middle of eyes ( Figs. 10, 13 ).......... Anaselina gen. nov.

6(5) Median carina of pronotum strongly elevated, in profile completely arch-like ( Figs. 16 , 21 ), in cross-section almost lamellate ( Fig. 18 ). Anterior margin of pronotum, in dorsal view, narrowly triangular and far produced over head ( Figs. 17 , 22 )........................... Selivinga gen. nov.

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.

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)].

Figs 9–15. Anaselina minor: 9–11, female; 12–15, male. Body, lateral (9, 12) and dorsal (10, 13) views; apex of abdomen, ventral (11) and lateral (15) views; head, frontal view (14).