Alekhosara Aristov, 2008

Aristov, D. S. & Gorochov, A. V., 2022, The genus Alekhosara Aristov, 2008 from the Upper Permian of Russia is a possible most ancient representative of the suborder Caelifera (Orthoptera), Far Eastern Entomologist 456, pp. 22-24 : 23-24

Genus Alekhosara Aristov, 2008

Alekhosara Aristov, 2008: 272 ; Aristov, 2013: 648.

Type species: Alekhosara reticulata Aristov, 2008 , by original designation.

DIFFERENTIAL DIAGNOSIS. Tegmen ( Figs 1–3 ) about 50 mm in length and very similar in shape and venation to that of Mesacridites Riek, 1954 (Middle Triassic of Australia)

from the family Pruvostitidae , but following differences are distinct: subcostal area slightly wider and with longer branches (these characters intermediate between Locustavidae and

Pruvostitidae ); Sc-R area before RS base (but near it) almost twice narrower than R-M area in this place (vs. these areas almost equal to each other in this place). From Locustavus

Sharov, 1968 (Middle or Upper Triassic of Kyrgystan) of the family Locustavidae this genus distinguished by tegmen with base of RS and place of MA2 bifurcation located very near each other (vs. RS base located in middle or near middle of distance between base of MA1

and place of bifurcation of MA2) and with more numerous MA branches (6 or 7 instead 3 or

4). From both genera of Pruvostitidae , Miolocustavus Gorochov, 2005 and Brevilocustavus

Gorochov, 2005 (Middle or Upper Triassic of Kyrgystan), Alekhosara distinguished by same character of RS base, more numerous branches of tegminal MP +CuA1 (5 instead 2), and less straight proximal branches of tegminal RS.

INCLUDED SPECIES. Only type species.

Figures

Figs 1–3. Tegmen of Alekhosara reticulata Aristov, 2008, holotype PIN, No 3700/51; Russia, Orenburg Region, Novo-Aleksandrovka locality; Upper Permian, Severodvinian Stage: 1, 2 – combined photography of part (1) and counterpart (2), 3 – reconstruction.