Sylvoedischia circummaculosa (Aristov, 2005) Aristov & Gorochov, 2020

Aristov, D. S. & Gorochov, A. V., 2020, ORTHOPTERA FROM THE LOWER PERMIAN VORKUTA LOCALITY (RUSSIA: KOMI REPUBLIC; KUNGURIAN STAGE), Far Eastern Entomologist 410, pp. 17-20 : 18-19

Sylvoedischia circummaculosa (Aristov, 2005) , comb. n.

Figs 1, 2

Parapermula circummaculosa Aristov in Rasnitsyn et al., 2005: 413.

TYPE MATERIAL. Holotype – PIN, no. 1631/414, part of forewing fragment; Russia:

Komi Republic, Pechora coal basin, Khal’mer-Yu coalfield, borehole KhK-997, depth 717.7 m,

Vorkuta Locality; Lower Permian, Kungurian Stage, Vorkuta Group, Lek-Vorkuta Formation,

Ayach’yaga Subformation, Member R (upper part); in Borissiak Paleontological Institute,

Russian Academy of Sciences ( PIN).

REDESCRIPTION. Anterior margin of forewing is convex. Sc ends before wings distal third, with anterior branches curved. Trunk of RA S-shaped, RA with four anterior branches.

RS starts near wings mid length, subpectinate, with four branches, interradial field wide. MA 1

start branching right after wings mid length, with five branches. Proximal region of 1MA 1

brought closer to RS not far from its base, but separated from the latter by very short, probably pseudotransverse veinlet, the rest of 1MA 1 make an obtuse angle with proximal region and directed almost at the wing’s apex. 2MA 1 with three apices. МА 2 is simple, desclerotized near the wings mid length. MP+CuA 1 ends beyond apex of Sc. Coloration is in form of small roundish spots located in fields between longitudinal veins.

MEASUREMENTS. Forewing length about 45 mm.

COMPARISON. Sylvoedischia circummaculosa comb. n. most similar with S. crassa

Gorochov, 1987 from Lower Permian locality Chekarda ( Russia, Perm region: Lower Permian, Kungurian Stage) from which it differs in convex anterior branches of Sc, subpectinate

RS, coloration in form of small round spots and bigger size. S. crassa have anterior branches of Sc straight, RS branching dichotomically, wing membrane lacking coloration, wing length

26 mm (Gorochov, 1987).

Superfamily Oedischioidea insertae sedis

Gen. et sp.

Fig. 3

MATERIAL EXAMINED. PIN, no 1631 /490, part of forewing fragment; Russia: Komi

Republic, Pechora coal basin, Khal’mer-Yu coalfield, borehole KhK-997, depth 717.7 m,

Vorkuta Locality; Lower Permian, Kungurian Stage, Vorkuta Group, Lek-Vorkuta Formation,

Ayach’yaga Subformation, Member R (upper part); in Borissiak Paleontological Institute,

Russian Academy of Sciences ( PIN).

NOTES. Besides the holotype of S. circummaculosa , one more Orthoptera wing fragment was obtained from Vorkuta locality it does not belong to aforementioned species and could be either Oedischiidae (Oedischiinae, Elcanoedischiinae, Mesenoedischiinae, Tettoedischi-

inae, Tcholmanvissiinae) or Pruvostitidae (Pruvostitinae) .

holotype PIN, no 3840/50; 2 – reconstruction .

Figures

Figs 1, 2. Forewing of Sylvoedischia circummaculosa (Aristov, 2005), comb. n.: 1 –

Fig. 3. Forewing fragment of Oedischioidea gen. et sp. insertae sedis, spec. PIN, no 1631/490.