( Ixxx ) 



Mr. J. W. TuTT sent for exhibition u long series of Ayriades 

 ihetis, captured in various parts of Europe : also a long series 

 of A. coridon (occupying some five cabinet drawers). The 

 series included Dr. Chapman's and his own material, the 

 Spanish forms of A. coridon comprising var. cdbicaus, Bsdv., 

 from Andalusia J var. arragonensis, Gerh., and its ab. coertd- 

 escens, Tutt (= albicans, H.-S.), from Aragon ; ab. 2)hwibescens, 

 from Jaca on the Spanish side of the Pyrenees, and a typical 

 c^ from Punto de Pajares (giving a hint as to the direction 

 of the habitats of the typical form in Spain). He also showed 

 a long series of the spring race of the double-brooded form of 

 the species {vieridionalis, gen. vern.) from Hyeres, Draguignan, 

 and Nimes, but chiefly from Ste. Maxime, Var, where it was 

 taken by Dr. Chapman in April — May. Witli these were 

 exhibited long series of other French, Swiss, Austrian, and 

 Bosnian examples, including most of the better-known forms 

 of tithonus, Meig. {= syng7'apha, Kef.), corydonius, Berg.str. 

 ( = ab. clnnus, Hb.), obsoleta, Tutt, parisiensis, Gerh. (often 

 erroneously called tijyJcys, Esp., which is the pai"allel form of 

 A. thetis), addenda, Tutt, costajuncta, Tutt, basijuncta, Tutt, 

 extensa, Tutt, striata, Tutt, etc. The arrangement of the 

 insects in geographical sections made comparison easy. 



Mr. Wheeler said he believed that Mr. Tutt was wrong 

 in proposing to change the name of the var. syngrapha to 

 tithonus, as although Meigen's figure is sy7igrapha he refers to 

 HUbner's tithotms, which = eros ; and Mr. Tutt's having sub- 

 divided the genera ought not to alter the fact that, as 

 tithomcs = eros, the name cannot be used to describe any form 

 of coridon. 



Mr. C. P. Pickett, Mr. A. E. Gibbs, and Mr. G. Bbthunb- 

 Baker also submitted series of coridon and tlietis with va,rietal 

 forms and aberrations, and after some remarks by Mr. Bethune- 

 Baker, the discussion was adjourned. 



Pap)ers. 



Mr. T. Bainbrigge Fletcher, E.N., communicated a paper 

 " On the genus Deuterocopus, Zeller." 



Mr. H. St. J. DoNiSTHORPB, F.Z.S., communicated a paper 

 ou " Some Experiments with Ants' Nests." 



