162 [July, 



larger than those captured in Surrey. The Essex specimens were light in colour, 

 while the Surrey specimens were not only much smaller in size, but very dark, 

 probably because their larva; had fed upon Erica or Call una. Colonel C. Swinhoe 

 announced the emergence of Cossus ligniperda in the Zoological Society's Gardens 

 from a pupa received in a piece of wood from South Africa, and said it was 

 remarkable that the species should have been introduced there, and then brought 

 back to Great Britain. Professor E. B. Poulton, two Euploeince captured in Fiji 

 by Professor Gilson, and presented by him to the Hope Department. The species, 

 which belonged to the different genera Nipara and Deragena, bore the closest 

 superficial resemblance to each other, affording an interesting example of Miillerian 

 or Synaposematic likeness ; also several specimens of Smerinthus populi which had 

 been exposed during the pupal stage to the intense heat of July, 1900. In con- 

 sequence of this " forcing " the moths emerged towards the end of that month, and 

 were markedly different in colour from the normal, being much paler in tint with 

 less distinct markings, and the red of the hind-wings of a very different shade. 

 They were also smaller, but this effect may have followed from the larvae having 

 been brought up under artificial conditions in the Oxford Museum. The Rev. A. E. 

 Eaton, drawings illustrating the wing of Pampterinus latipennis, Etn. MS., a 

 remarkable Dipterous fly of the Family Psychodida, from New Guinea, in the 

 collection of the Hungarian National Museum, Budapest. This wing is oblong- 

 ovate in form and of extraordinary breadth, being considerably dilated in the areas 

 posterior to the postical vein, and still more so in the marginal area, which is the 

 broadest of all. The submarginal area at the costa is slightly wider than the full 

 span of the radial fork, and each of them is wider than any of the remaining areas 

 that have not been mentioned above. The short mediastinal vein near its ending in 

 the subcosta is joined by a perpendicular cross-vein to the sub-costa, where the wing 

 (deeply concave thereabouts) is crossed by a crease. The axils of the radial and 

 pobrachial forks are nearer to the cross-veins than in Pericoma fusca (sketches ex- 

 hibited), the type of species to which the New Guinea fly has most affinity. 

 Both surfaces of the wing arc clothed with minute truncate obovate-cuneate 

 imbricated scales inserted in the membrane, as well as in the veins. 



Professor Louis Compton Miall, F.R.S., communicated a paper " On a new 

 cricket of aquatic habits found in Fiji by Professor Gustave Gilson. Mr. R. 

 McLachlan said that this was not the first time an Orthopteron of aquatic habits 

 had been noticed. Mr. Pascoe had brought back one such insect from the Amazons> 

 which leaped on the leaves of aquatic plants, and there was a recent record of 

 another species with kindred habits being found in Java. 



Professor E. B. Poulton remarked that Professor Miall was interested in insects 

 which skate upon the water, but there were also some Orthoptera which were 

 aquatic in another sense. Mr. Annandale had brought back from the Malay region 

 an aquatic insect of this Order (a Blatia), which was far too heavy to skim upon 

 the surface. The President added that there was some Coleoptera which, although 

 non-aquatic, were so specialized as to be able to use their limbs in a similar manner 

 to water-beetles. Dr. T. A. Chapman, M.D., F.Z S., communicated a paper on 

 "Asymmetry in the Males of Hemarine and other Sphinges." Mr. E. Meyrick, 

 B.A., F.Z.S., communicated a paper on " Lepidoptera from the Chatham Islands." 

 — H. Rowland-Beown, Hon. Sec. 



