. Bulletin of the British Museum (Natural History), Geology. 132 P. E. S. WHALLEY. Fig. 19 Regiata scutra sp. nov. (Orthoptera). Paratype, , forewing. b, enlargement of anal area and wing base. Note break in wing in front of anal area (arrowed) caused when the curved wing was flattened. Wing membrane heavily spotted. Other material. Discussion. This species is similar to the grylloid Karataogryllus gryllotalpiformis Sharov, from the Jurassic of Asia, but differs in the shape of the median vein and the very sinuous subcostal vein. R. scutra was probably similar to Recent gryll
. Bulletin of the British Museum (Natural History), Geology. 132 P. E. S. WHALLEY. Fig. 19 Regiata scutra sp. nov. (Orthoptera). Paratype, , forewing. b, enlargement of anal area and wing base. Note break in wing in front of anal area (arrowed) caused when the curved wing was flattened. Wing membrane heavily spotted. Other material. Discussion. This species is similar to the grylloid Karataogryllus gryllotalpiformis Sharov, from the Jurassic of Asia, but differs in the shape of the median vein and the very sinuous subcostal vein. R. scutra was probably similar to Recent gryllids where the wings are folded over the back. When these were flattened during fossilization they split at the base of the wing, seen in Fig. 19b (arrow) as a fine break between the anal area and the rest of the wing. R. scutra also had the apex of the wings rolled together or even curled up as shown by (Fig. 18). When the surface of the rock is wet the fossil appears to be covered in granules which, when examined dry, are seen to be tiny pits. Although these pits are denser in the anal area they occur over most of the forewing. The pitting shows up clearly in the subcostal area where they are arranged regularly along the subcostal veins. The anterior median and postcubital veins on some specimens are thickened; these thickened veins were almost certainly slightly raised above the wing and may have formed part of the stridulatory mechanism, but there is no sign of the mirror which, in Recent forms, is bounded by CuP and a branch of CuA. Vein 1A, which is also part of the stridulatory mechanism in Recent species, is, however, prominent in the fossil. R. scutra can be distinguished from Hagla gracilis Giebel, which is common in some Lower Lias. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British M
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