tNTERNATtOKAL ZOOLOGICAL CONGRESS. 243 



He exhibited also the tcguuiina of the J" s of AntJimrrra Imirerae 

 and A. /ilijicndulai', and of the liybrids raised by Mv. W. H. B. Fletcher, 

 These showed a great dilYerencc between the two species, whilst in 

 the hybrid the form is intermediate. 



Prepakations of EiiuRYo (xRYLLOTALPA. — Another most interest- 

 ing exhibit was that of Dr. Ileymons, who showed the preparations of 

 the omhvyo oi. C}ri/U()talpa, mixde in 1891, and figured in his paper. 

 They are most beautiful, and indicate every detail that his figures exhibit 

 most completely. Similar preparations of the embryo of Myriapods of 

 which he has yet only published a preliminary account, are equally 

 beautiful and interesting, and show that the Myriapods are nearer the 

 insect stem than has usually been the accepted opinion. 



Collection' of Termites. — An exhibit of importance was a selection 

 from the Haviland collection of Termites, made in Malaya and Borneo 

 (Singapore, Malacca, Celebes, Sarawak, etc.), containing an enormous 

 number of specimens of many species, obtained apparently in each 

 instance from the nests, and containing in each case the queen and 

 usually the king, and numbers of the other forms making a community, 

 and all kept together, so that no doubt could arise as to which workers, 

 soldiers, winged forms, kings and queens belonged to each other, and 

 eliminating all the uncertainties due to having to piece together 

 examples taken outside the nest. 



An AQUATIC grasshopper. — A curious specimen from Fiji, not 

 shown so as to be easily examined, however, was a grasshopper about 

 f of an inch long, of aquatic habits. It frequents the running water 

 of rapid streams, hopping on the surface of the water, and has a modi- 

 fication of the hind-legs to suit its environment. On either side at the 

 extremity are a row of five or six long spines or filaments, making a 

 gridiron-like structure, which must give the insect a good hold of the 

 surface of the water, especially if, as is no doubt the case, these 

 appendages are lubricated so as to repel the water, as in other insects 

 inhabiting water surfaces. We could not see clearly what these 

 filaments really were, but they seemed to be expansions of the double 

 row of tibial spines. 



Reproduction of lost parts in Blattid.e. — Mr. Brindley showed 

 specimens illustrating reproduction of lost parts in the legs of lUattidae. 



Larv.e of Lamellicorn 15EETLES. — Mr. Warburton exhibited larvas 

 and drawings of preparations of the mandibles of sundry Lamellicorn 

 beetles, showing that these larvic, which are large whitish, llcshy grubs, 

 all very much alike, may be readily distinguished from each other by 

 the peculiarities of the stridulating surface on the inner aspect of the 

 mandibles. Melulontha, Lucanm, (Jeotrupes, Phyllopertha, Cetonia, 

 Iihi::otroffii.s, and others, were illustrated. 



Marine Dipterous larv.e. — Mr. Geo. Swainson had a very inter- 

 esting exhibition of preparations, with drawings of several marine 

 Dipterous larva>, for a description of which our space is inadequate. 



Evolution of colour in Lepidoptera. — In the sections, Mr. Piepers 

 read a paper on the " Evolution of Colour in Lepidoptera." He 

 merely stated his theory that the original colour in the oldest forms is 

 red, and that this passes in a certain order to white, but gave no illustra- 

 tion, nor did he state by what other criteria he recognised the oldest 

 forms. These are probably given in papers published abroad in media 

 not familiar to English students, and there is probably a better basis 

 for Mr. Piepers' views than we gathered from this paper. 



