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In the discussion on Osborn's paper, Ashmead briefly pre- 

 sented his views; he is certainly more correct in his order of 

 Cicadidae, Jassidae, Membracidae, Fulgoridae (he omits Cerco- 

 pidaej, but he derives these from the Sternorhynchi, beHeving 

 that the Coccidae are the lowest, root-stock! 



(4) Sninmary. 



(1) The Fulgoroidea are enormously the most specialized, 

 highly organized and differentiated, of the Auchenorhync'hi, the 

 Cixiinae possibl}- being the inost primitive types, though in 

 some respects the Derbidae are: 



(2) The most primitive existing forms of Siphonata seem to 

 be the Cicadoidea, but 



(3) The Tetigonioidea seem to have arisen separately. 



(4) ( )f the Tetigonioidea the Pliryiioiiiorpliiis forms seem to 

 be the most generalized; Agalliinae are specialized a little in 

 the extreme declivity of the vertex and frons, and ventral posi- 

 tion of the ocelli; they also tend to spinoseness of the tibiae, 

 culminating in the Cercopifomi Eurymelini. 



(5) The Membracidae are hig*hly specialized in the prono- 

 tum, but are otherwise very low. 



(6) The Cercopidae are perhaps as a whole the culmination 

 of the Tetigoniioidea. 



