378 ENTOMOLOGICAL NKWS [Oct., 'lO 



idea of genera one of the greatest deeds of Linnaeus; earlier 

 genera often arbitrarily erected ; necessity of testing them in 

 respect to their phylogenetic relations ; even to-day many gen- 

 era are artificial, not natural). 



Section of Nomenclature and Bibliography. President, S. 

 Schenkling (Berlin). Vice-president, K. Kertesz. A. Janet 

 (Paris) : A plea on the mode of entering species in indexes 

 (alphabetic order by species not by genera). H. H. Lyman 

 (Montreal): The importance of the uniform use of technical 

 names referring to types, cotype, etc., and on the right of 

 authors to change the names given by other authors (Blakci to 

 Blacei, Walkeri to Valkeri etc.). W. Horn (Berlin) : Com- 

 munication of the paper sent by A. de Semenow-Tjan Shansky 

 to the Congress: The taxonomic limits of the species and its 

 subdivisions (Mem. Acad., St. Petersb., VIII Ser., v. 25, N. i.) 



Tuesday, August 2. 



9 A. M. General Session. President, E. L. Bouvier (Paris). 

 Vice-president, W. Rothschild (Tring). R. Blanchard : Con- 

 ference on Medical Entomology. E. Wasmann (Luxemburg) : 

 Ants and their guests. The paper announced for the meeting 

 by A. Forel, on the geography and phylogeny of the ants, was 

 not given owing to the author's absence due to a death in his 

 family. 



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

 President, H. von Buttel-Reepen (Oldenburg). Vice-presi- 

 dent, H. Osborn (Columbus). H. von Buttel-Reepen: Atavis- 

 tic phenomena in the bee state ; are there two or three germ 

 fundaments in the bee egg? (various hitherto unconsidered 

 morphological and biological phenomena in the bee state, Apis 

 mellifica-mellifica L., A. mcllifica-fasciata Latr., A. mellifica- 

 remipes Pall., etc., show very old agreement with earlier devel- 

 opmental stages). K. Hasebroek (Hamburg) : Cymatophora 

 or aber. albingensis Warn, and its significance for melanism 

 around Hamburg. E. W. Carlier and C. L. Evans : Note on 

 the chemical constitution of the red colored secretion of 7V- 

 marcha tenebricosa. H. Osborn : Remarks on the Jassid fauna 



