FIGURE 1. Kishenehna prima USNM 621304, holotype hind wing. A in Kishenehna prima, a new genus and species of darner dragonfly (Odonata, Aeshnidae, Gomphaeschninae) from the early middle Eocene Kishenehn Formation of Montana, USA

FIGURE 1. Kishenehna prima USNM 621304, holotype hind wing. A, composite photograph; B, drawing. CuA, cubitus anterior; CuP, cubitus posterior; Mspl, medial supplement, the intercalary vein between MA and MP; Rspl, radial supplement, the intercalary vein between IR2 and RP3-4; b, brace vein; o, oblique crossvein; n, nodus; a, arculus; MA, media anterior; MP, media posterior; RP1, posterior branch of the radius 1; RP2, posterior branch of the radius 2; RP3-4, posterior branch of the radius 3+4; IRP1, first radial intercalary vein; IRP2, second radial intercalary vein; RA, anterior branch of the radius; pt, pterostigma; MAb, vein portion forming the distal side of the triangle; hp, humeral plate; ap, axillary plate. Coloured cells: purple, radial planate between IRP2 and Rspl; light blue, medial planate between MA and Mspl; darker blue, triangle; green, subtriangle; red, anal loop; yellow, supratriangle; brown, cubito-anal space. Scale bar is 10 mm.