Smithsonian miscellaneous collections . branous area of the lobe. When the ventral lobe isremoved (B) the dorsal lobe of the aedeagus (dl) is seen to have theform of a long, tapering tube, curved upward and ending in fourslender apical processes. The organ, however, is not literally tubular,since the posterior wall is deeply cleft to its base : the opening is the 78 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 phallotreme, and in its inner walls are the usual phallotreme scleritcsending distally in the apical processes {n, p). The proximal partof the dorsal lobe (B, m) is small, but is quite
Smithsonian miscellaneous collections . branous area of the lobe. When the ventral lobe isremoved (B) the dorsal lobe of the aedeagus (dl) is seen to have theform of a long, tapering tube, curved upward and ending in fourslender apical processes. The organ, however, is not literally tubular,since the posterior wall is deeply cleft to its base : the opening is the 78 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 phallotreme, and in its inner walls are the usual phallotreme scleritcsending distally in the apical processes {n, p). The proximal partof the dorsal lobe (B, m) is small, but is quite distinct from thecylindrical distal part (r) and bears the two aedeagal apodemes (Apa).The phallotreme cleft leads through the meatus in the neck of theendophallus into the endophallic cavity. The spermatophore sac of thelatter is small (sps), but the ejaculatory sac (ejs) is unusually large;the two communicate by the gonopore, which lies between the gono-pore processes (y) of the lateral endophallic plates. VIII IX X Eppt Cer Papt Pal. Fig. 33.—Male genitalia of Dissostcira Carolina (Oedipodinae). A, end of abdomen with phallic organs concealed in genital chamber. B,same, with phallic organs protracted. C, endophallic chamber opened from above,showing gonopore situated in its floor. D, proximal lobes of aedeagus (w)and aedeagal apodemes with basal zygoma, dorsal view. In the position of protraction (fig. 32 C), as shown by Boldyrev(1929), the ventral lobe of the aedeagus is depressed and the dorsallobe is projected upward with its apical processes turned spermatophore (Sphr) issues anteriorly from the upper end ofthe phallotreme cleft between the bases of the anterior processes. Dissosteira Carolina (Linn.).—The end of the male abdomen ofDissosteira is obtusely pointed (fig. 33 A) because of the conical formof the genital lobe of the ninth sternum (IXSL). The lobe is movableon the anterior sternal plate (IXS) by a wide membranous area sepa-rating the two. From
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
