39 



ENTOMOLOGICAL NEWS 



[Nov., '15 



HOMOLOGIES OF THE PRINCIPAL LONGITUDINAL TRACHEAE OF ODONATE 

 LARVAE AS DESCRIBED AND FIGURED BY DIFFERENT AUTHORS. 



* Roster has applied the terms esterno, esterni, to both of these tracheae. 



t Bervoets adds (p. 18), " Cette pair de troncs... pourrait tre appele yisctJrale. 

 Chez les Anisopteres, ces troncs se croisent sur le ventricule chylifique." I think, how- 

 ever, that he is in error in this homologization. 



