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Peranabrus scabricollis, drawing of subgenital plate of female, apex uppermost. Fig. 19 in Gurney, A.B. 1939. Aids to the identification of the mormon and coulee crickets and their allies (Orthoptera; Tettigoniidae; Gryllacrididae). US Dep. Agric. Bureau of Entomol. & Plant Quarantine E-479.19 pp.
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Peranabrus scabricollis, drawing of dorsal view of apex of male abdomen. Fig. 10 in Gurney, A.B. 1939. Aids to the identification of the mormon and coulee crickets and their allies (Orthoptera; Tettigoniidae; Gryllacrididae). US Dep. Agric. Bureau of Entomol. & Plant Quarantine E-479.19 pp.
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Scudderia cuneata, dorsal view of male dorsal process. Fig. 3 (Plate IX) in Rehn, J.A.G. and M. Hebard. 1914. Studies in American Tettigoniidae: 1. A synopsis of the species of the genus Scudderia. Trans. Am. Entomol. Soc. 40: 271-314.
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Scudderia mexicana, dorsal view of dorsal process of male. Fig. 3 (Plate 9) in Rehn, J.A.G. and M. Hebard. 1914. Studies in American Tettigoniidae: 1. A synopsis of the species of the genus Scudderia. Trans. Am. Entomol. Soc. 40: 271-314.
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Dorsal processes of male Scudderia occurring north of Mexico (the dorsal process is a rearward dorsal extension of the last abdominal segment). From Plate IX in Rehn J.A.G. and M. Hebard. 1914. Studies in American Tettigoniidae: 1. A synopsis of the species of the genus Scudderia. Transactions of the American Entomological Society 40: 271-314.
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Ovipositors of Scudderia occurring north of Mexico. From Plate X in Rehn J.A.G. and M. Hebard. 1914. Studies in American Tettigoniidae: 1. A synopsis of the species of the genus Scudderia. Transactions of the American Entomological Society 40: 271-314.
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