224 THE entomologist's record. 



The Fourth International Congress of Zoology. 



By HORACE St J. K. DONISTHORPE, F.Z.S., F.E.S. 



The fourth International Congress of Zoology, held at Cambridge, 

 under the presidency of the Rt. Hon. Sir John Lubbock, Bart., M.P,, 

 LL.D., F.R.S., proved a distinct success, and in response to a request 

 from the Editor of Tlic Kntoni. Record, who unfortunately could not be 

 present, I ofi'er the following notes as to matters stnictly entomological 

 that came under the notice of the members present. 



Among the entomological specialists present were many well- 

 known faces. One noticed among others : Professers T. H. Bearo, 

 E. L. Bouvier, Drs. Chapman, Dixey, Jordan, Sharp, Messrs. Adkin, 

 Bateson, Bouskell, Burr, Carpenter, Champion, Crowley, Durrant, 

 Fauvel, Janet, Kirby, McLachlan, Merrifield, Nevinson, Newstead, 

 Olivier, Pearson, Piepers, Rowley, Trimen, Verrall, Vice, J. J. Walker, 

 the Revs. 0. Pickard-Cambridge and H. S. Gorham, the Hon. 

 Charles and Hon. Walter Rothschild, and the Rt. Hon. Lord Walsing- 

 ham. There were, of course, many other well-known entomologists, 

 both British and foreign, that one cannot call to mind at a moment's 

 notice. 



Various objects of great interest to zoologists were on view in the 

 Zoological Laboratory. Among the entomological exhibits may be 

 mentioned: (1) Specimens illustrating the means of identifying certain 

 coleopterous larvje (Mr. C. Warburton). (2) Specimens illustrating 

 the reproduction of lost parts in the legs of Blattidae (Mr. H. H. 

 Brindley). (3) New Nematodes from Fiji — a cricket with spines on 

 the hind tibia?, that jumps on the surface of water (Professor G. 

 Gilson). 



On August 23rd, three papers relating to entomology were read : 

 (1) " Evolution of Colour in Lepidoptera," Mr. M. C. Piepers. (2) 

 " Experiences sur la relation qui existe entre la couleur du milieu et 

 la couleur des chrysalides de certains Lepidopteres," M. Bordage. (3) 

 " Some points in the Classification of Lisects," Dr. D. Sharp. The 

 latter would arrange insects in three or four groups in accordance 

 with the presence or absence of wings, and subdivide those with wings 

 into divisions dependent on whether the wings undergo their growth 

 inside or outside the body. He pointed out that the insects in which 

 wings are developed outside the body are the only ones known with 

 certainty to possess what may be ancestral forms in the Palaeozoic 

 epoch. 



On August 24th, three other entomological papers were read : (1) 

 " Sur la constitution morphologique de la tete do I'insecte arrive a 

 I'etat d'imago," M. Charles Janet. (2) " Sur les Lampyrides des 

 Antilles," M. E. Olivier. The author, in his paper, gave a general 

 account of the Lampyridae of the Antilles, where six genera and 34 

 species are represented. (3) " Sur les caracteres externes des Peri- 

 pates," Prof. E. L. Bouvier. 



Mr. Verrall entertained some of the entomologists at Newmarket 

 during their stay : Messrs. Champion, Walker, Burr, the Rev. H. 

 S. Gorham and myself, among others. At Dr. Harmer's "at home," 

 on the evenings of August 24th-2.5th, for those members of Congress 

 staying at King's College, Messrs. Beare, Bouskell, Burr, Rowley, 

 Vice and myself represented the entomological section, 



