27 



From the Annals and Magazine of Natural History, 

 Ser. 8, Vol. x., August 1912. 



Some Considerations in regard to the Classification of the 

 Order Thysanoptera, By RlCHAKD S. BAGNALL, F.L.S., 

 F.E.S., Hope Department of Zoology, University Museum, 

 Oxford. 



Since my papers on the Urothripidse were published *, I 

 have come to the conclusion that in retaining that family as 

 a family of the suborder Tubulifera unnecessary difficulties 

 will be created. I have already shown that whereas Uro- 

 thrips superficially resembles the Tubulifera very closely, it 

 really differs from true Tubulifera more strongly in its 

 structure than do the members of the suborder Terebrantia ; 

 or, in other words, the two suborders Tubulifera and Tere- 

 brantia are more closely related to each other than Urothrips 

 to either. I am now convinced that the only course one can 

 reasonably take is to erect a new suborder for the reception 

 of the family Urothripidse, for which I propose the name 



POLYSTIGMATA, 



suggested by the character that appears to me to be of the 

 greatest taxonomic value. 



It will be well to briefly diagnose the three suborders. 



* Annales Musei Nationalis Hungarici, 1909, vii. pp. 125-13(5, pi. iii., 

 & Mem. l er Cong-res International d'Entomologie, 1910, pp. 283-288. 



