Smithsonian miscellaneous collections . edeagal apodemes (E, Apa) are short butbroad at their bases. The endophallus (F) has the usual structure,but has characteristic features. The phallotreme sclerites {o, q) are 82 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 very slender; those of the dorsal pair are united by an arched bridge(t) in the dorsal wall of the meatus; each sclerite of the ventral pairbears a large, thin, oval plate (v) in the lateral wall of the phallotremecleft. The ejaculatory sac (ejs) is relatively large and is separatedfrom the spermatophore sac (sps) by strong gonopore p
Smithsonian miscellaneous collections . edeagal apodemes (E, Apa) are short butbroad at their bases. The endophallus (F) has the usual structure,but has characteristic features. The phallotreme sclerites {o, q) are 82 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 very slender; those of the dorsal pair are united by an arched bridge(t) in the dorsal wall of the meatus; each sclerite of the ventral pairbears a large, thin, oval plate (v) in the lateral wall of the phallotremecleft. The ejaculatory sac (ejs) is relatively large and is separatedfrom the spermatophore sac (sps) by strong gonopore processes(y) of the lateral endophalic plates. Melanoplus differentialis (Thomas).—The ninth sternal lobe isshort in this species (fig. 36, IXSL), and from its dorsal margin theexposed part of the pallium (B, Pal) rises like a dome behind theeleventh segment. The phallic organs (fig. 37 A) are somewhatcrowded in the rather small genital chamber. The epiphallus (Epph)is large but weakly sclerotized, and is deeply sunken into the folded. Fig. 36.—Male abdomen of Mclaiwfliis differentialis (Cyrtacanthacrinae).A, entire abdomen. B, end of abdomen, lateral view. C, same, dorsal view. floor of the genital chamber. The basal fold {hf) is bilobed. Thedorsal lobe of the aedeagus is distinctly divided into a proximal part(A, B, 77z) bearing the aedeagal apodemes (B, Apa), and a large cylin-drical distal part (r). The ventral lobe (A, vl) is relatively the distal end of the aedeagus there projects only one pair ofapical processes (A, B, C, D, n), which are the usual anterior dorsalprocesses continuous from the dorsal sclerites of the phallotreme cleft(D, 0). The ventral processes are present, but they are concealedwithin the phallotreme cleft (C, p), since they arise deeply from thewalls of the latter and do not project from the apex of the endophallus (D) has the usual structure, though the sperma-tophore sac {sps) is much reduced, and the ejaculatory sac {ejs)
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
