Anatomy of the Male Genital Tiibe in Coleoptera. 639 



Phytophagoidea have no lateral lobes and are different 

 from the other great groups. It is then only possible to 

 derive them from some primitive Cucujoid form unknown 

 to us. The term primitive (suppositive), as here used, 

 may probably be interpreted as implying that if a con- 

 nection of Phytophagoidea with our other series ever 

 existed it was in the precoleopterous phylogeny. Though 

 we have not discovered any important distinction between 

 Rhynchophora and Phytophaga as regards the aedeagus, 

 we may point out that our investigation of these two 

 enormous complexes is very far from exhaustive as to this 

 point. Also that this memoir is not concerned with other 

 distinctions. 



We consider that the genital tube of the male is of 

 great importance in the phylogeny of Coleoptera. And 

 that its study makes it extremely difficult to accept less 

 than eight primary divisions of the Order. 



VI. ALPHABETICAL INDEX OF FAMILIES 

 AND SERIES 



to what we have found in the Cerambycidae. It is therefore possible 

 that even the aedeagus may ultimately show the Rhynchophora to 

 have an origin distinct from the Cerambycidae. 



