ENTOMOLOGICAL NEWS [Oct.. 'lO 



K. Jordan : The systematics of certain Lepidoptera which re- 

 semble each other and their bearing on general questions of 

 evolution. E. B. Poulton (Oxford) : C. A. Wiggin's research- 

 es on mimicry in the forest butterflies of Uganda, 1909-1910 

 (the Danaine and Acraeine models fly in the same forest with 

 their Nymphaline, Papilionine and other mimics and their pro- 

 portions vary greatly at different times of the year). 



Thursday, August 4. 



9 A. M. General Session. President, E. B. Poulton. Vice- 

 president, E. Everts (The Hague). A. Handlirsch: Recon- 

 structions of fossil insects. H. Donisthorpe (London) : Ants 

 and their guests. Y. Sjostedt (Stockholm) : The Swedish Kil- 

 imandjaro Expedition and its results. 



2 P. M. Section of Bionomy, Physiology and Psychology. 

 President, E. Wasmann, Vice-president, P. Marchal (Paris). 

 W. Horn : Analogous phenomena of twig-inhabiting Cicindelid 

 larvae in the oriental and neotropical regions. E. L. Bouvier : 

 Harvesting ants of the vicinity of Royan. R. Garcia y Mercet 

 (Madrid) : Nidification, biology and parasites of some Sphe- 

 gidae (^clopocus destillatorius, Chalybion bcngalcnsis, Stig- 

 i/ius solskyi, Diodontus niinittits, etc.) K. Masebroek: Vanessa 

 urticae and Plusia moneta altered by Rontgen rays (demonstra- 

 tion). E. Olivier (Moulins) : Abnormal pairings among in- 

 sects. G. Horvath (Budapest) : The Polyctenidae and theii 

 adaption to parasitic life. M. Bachmetjew (Sofia) : Anabiosis 

 in insects (lifeless condition which is produced by exposure to 

 a certain temperature ) . 



Section of Systematics. President, A. von Schulthess (Zu- 

 rich), Vice-president, C. Gahan (London). E. L. Bouvier: 

 Decapod Pycnogonids. A. Schulz ( Villefranche) : Systematic 

 review of the Monomachidae (Hymenoptera). S. Schenkling: 

 The new Jung-Schenkling Catalogus Coleopterorum. M. Bach- 

 metjew: Spatial arrangement of Systematics (Spatial arrange- 

 ment of systematics is presented in space by three coordinates 

 whereby the existence of + or - - forms is determined ; its term- 

 inology is simpler). 



