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SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 89 



(B), there is brought to view a weakly sclerotic connection between 

 the sclerites .y and q, and, moreover, there is exposed a distinct third 

 sclerite (r) intervening between q and the base of the cercus {LB), 

 which by an anterior process articulates with the inner margin of the 



Fig. 22. — Structure of postgenital segments of Gryllns assimilis, and muscles 

 of cerci of Heterojapyx gallardi. 



A, dorsal view of postgenital segments of Gryllns. 



B, right half of same with membranous parts stretched to show hidden 

 sclerites. 



C, muscles of right half of postgenital segments of Gryllns. 



D, cerci and muscles in tenth segment of Heterojapyx. 



latter. It is to be seen, therefore, that a broken sclerotic continuity 

 exists between the base of the cercus and the epiproct. 



The paraprocts (figs. 18, 22 A, B, C, Papt) are large, half-oval 

 sclerites occupying the ventrolateral parts of the eleventh segment 



