. Annals. Entomology. 24 Aunah Entomological Society of America [Vol. XV, with the formation of the spermatophore, as it is absent in the Acrididae and Tridactylids, in which apparently no sperm- atophores are formed. Tettigonoidea. With the exception of the aberrant Sten- opelmatine Cyphoderris monstrosa Uhl., and probably other Stenopelmatinae, in which the penis is degenerate, the male genitalia of the Tettigonoidea, as represented by the forms studied, may be divided into two types, the one represented by the Rhaphidophoringe, the other by the Decticinse, Cono- cephalinae, Copiphorinae, Ph
. Annals. Entomology. 24 Aunah Entomological Society of America [Vol. XV, with the formation of the spermatophore, as it is absent in the Acrididae and Tridactylids, in which apparently no sperm- atophores are formed. Tettigonoidea. With the exception of the aberrant Sten- opelmatine Cyphoderris monstrosa Uhl., and probably other Stenopelmatinae, in which the penis is degenerate, the male genitalia of the Tettigonoidea, as represented by the forms studied, may be divided into two types, the one represented by the Rhaphidophoringe, the other by the Decticinse, Cono- cephalinae, Copiphorinae, Phaneropterinae, Tettigoniinse, Meco- neminae and probably by most of the other Fig. 4. Fig. 4. Genitalia of male Orthoptera, dorsal views (diagrammatic); a, Tetti- goniid, based on Ceuthophilus (parameres partly everted); b, Tettigoniid, based on Neduba; c, Gryllid, based on Gryllus; d, Acridid, based on Dissosteira. For lettering, see page 71. The first type is the more primitive and may be illustrated by the genus Ceuthophilus. Figs. 22-25 show various views of the penis of C. lapidicola Burm. In this type the penis is almost entirely membranous, as are also the parameres, which in C. lapidicola are only slightly chitinized proximally along their mesial surfaces, the narrow chitinized areas coalescing at base to form a single sclerite. In the resting condition (Fig. 22) the posterior wall of the penis is invaginated, forming the sperma- tophore sac, into the lower part of which the ejaculatory duct opens (gp). The upper part is marked off from the lower by a slight transverse fold (fps), above which is seen the plate formed by the united bases of the parameres (pmb), which being partly inverted, are otherwise invisible in this position. The fold (fps) corresponds to the floor of the "paramere sac" in Nedub'a, etc. (see p. 27). In Fig. 25, of PI. Ill, which was. Please note that these images are extracted from scanned page images that may have been digit
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