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SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 94 



phallotreme, and in its inner walls are the usual phallotreme scleritcs 

 ending distally in the apical processes {n, p). The proximal part 

 of the dorsal lobe (B, m) is small, but is quite distinct from the 

 cylindrical distal part (r) and bears the two aedeagal apodemes (Apa). 

 The phallotreme cleft leads through the meatus in the neck of the 

 endophallus into the endophallic cavity. The spermatophore sac of the 

 latter 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 dorsal 

 lobe is projected upward with its apical processes turned forward. 

 The spermatophore (Sphr) issues anteriorly from the upper end of 

 the phallotreme cleft between the bases of the anterior processes. 



Dissosteira Carolina (Linn.). — The end of the male abdomen of 

 Dissosteira is obtusely pointed (fig. 33 A) because of the conical form 

 of the genital lobe of the ninth sternum (IXSL). The lobe is movable 

 on the anterior sternal plate (IXS) by a wide membranous area sepa- 

 rating the two. From its dorsal margin the pallium (Pal) is continued 



