Smithsonian miscellaneous collections . Fig. yj-—Male genitalia of Melaiwpliis diffcroitialis (Cyrtacanthacrinae). A, the external phallic organs on floor of genital chamber. B, aedeagus andendophallus. C, dorsal lobe of aedeagus, posterior view, showing phallotreme(Phtr) and apical processes («, p). D, endophallus with apex of aedeagus,and ejaculatory Fig. 38.—Male abdomen and genitalia of Mclaiwplits mexicaiius (Cyrta-canthacrinae). A, end of abdomen, lateral view. B, same, dorsal view. C, right half ofepiphallus. D, external and internal phallic organs, with floor of genital chamber.
Smithsonian miscellaneous collections . Fig. yj-—Male genitalia of Melaiwpliis diffcroitialis (Cyrtacanthacrinae). A, the external phallic organs on floor of genital chamber. B, aedeagus andendophallus. C, dorsal lobe of aedeagus, posterior view, showing phallotreme(Phtr) and apical processes («, p). D, endophallus with apex of aedeagus,and ejaculatory Fig. 38.—Male abdomen and genitalia of Mclaiwplits mexicaiius (Cyrta-canthacrinae). A, end of abdomen, lateral view. B, same, dorsal view. C, right half ofepiphallus. D, external and internal phallic organs, with floor of genital , aedeagus and apodeme, right side. 83 84 SMITHSONIAN MISCELLANEOUS COLLECTIONS \OL. 94 Melanoplus mexicanus (Sauss.).—The general features of thisspecies are sufficiently shown in figure 38. The distal part of thedorsal lobe of the aedeagus is unusually long (D, E, r) and is pro-duced into two terminal lobes laterad of the phallotreme cleft. Thedorsal apical processes («) thus come to project anteriorly below thesummit of the terminal lobes. With the base of each of these processesthere is connected a soft padlike lobe (E, /). The ventral apical proc-esses are concealed within the phallotreme cleft as in the last species. Melanoplus femur-rubruin (Degeer).^—The exposed characters ofthe male abdomen of this species are shown in figure 39. The
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