SOCIETIES. 323 



same time he pointed out that the interpretation so convincingly illus- 

 trated that evening had been made out last spring by Mr. S. A. Neave, 

 who exhibited this form of the female merope together with Plnnema 

 pofli/ei as its model at both soirees of the Royal Society in May and 

 June, a time when Mr. Trimen's absence from England unfortunately 

 prevented him from seeing them. — Dr. T. A. Chapman exhibited 

 Ciemmi/mphd (EiUpm, Satyrus dryas, and Heteropterns morpheus, taken 

 last summer near Biarritz ; and Erebia evias and K. styyne from the 

 Logrono Sierra, Spain. These respectively he suggested were probably 

 examples of homffiochromatism. Little attention has been directed 

 to homoeochromatism in European butterflies, and those were certainly 

 not examples of the detailed mimetism we are now familiar with 

 in Miillerian groups from the African and neotropical regions. — Dr. 

 Chapman also exhibited living imagines of Cnnoj)teryx familiella. 

 These had just emerged at Reigate, where they and their parents, 

 descended from pupre brought from Cannes in March, 1901, had lived 

 out of doors during their active existence, being brought into the house 

 only during their pupal {estivation. This seemed noteworthy in so 

 southern (Mediterranean) a species. The experiment seemed quite 

 likely to continue successful for the next generation. — Mr. Ambrose 

 Quail read papers " On the Antennae of the Hepiahdje," and " On 

 Epalxiphora axenana, Theyr." — Mr. Gilbert J. Arrow read a paper 

 "On the Laparostict Lamelicorn Coleoptera of Grenada and St. 

 Vincent, West Indies." — Mr. Thomas Harold Taylor, M.A., commu- 

 nicated "Notes on the Habits of Chirunonnis [orthocladins) sordidellus.'" 

 Mr. F. Du Cane Godman, D.C.L., F.R.S., communicated " Descrip- 

 tions of some New Species of Erycinidfe." — Mr. W. L. Distant com- 

 municated "Additions to the Rhynchotal Fauna of Central America." 

 — Dr. D. Sharp, M.A., F.R.S.^ read a paper " On the Egg-Cases and 

 Early Stages of some Cassididae." 



October 21s«. — The President in the chair. — Mr. Montague Austin 

 Phillips, F.R.G.S., F.R.S., of 22, Petherton Road, Canonbury, N., was 

 elected a Fellow of the Society. — Mr. J. H. Keys sent for exhibition 

 a black variety of Carahus nemoralis, Miill., from Dartmoor. — Mr. G. 

 C. Champion exhibited a series of Rosalia alpina, Linn., found by him- 

 self on old beech trees at Moncayo, North Spain, in July last. — Mr. 

 A. J. Chitty exhibited the larva of Dytiscns Jiavescens, taken at East- 

 ling, Kent. — Col. J. W. Yerbury exhibited Gastrophilus nasalis, Linn., 

 taken at Torcross, Devonshire, from the 19th to the 31st of August 

 last. He said that as this rare species differed in a marked degree in 

 its mode of flight, &c., from the common horse bot-fly [Gastrophilus 

 equi), it would be as well to draw attention to these differences. 

 G. equi when flying round a horse visits, as a rule, the belly and the fore 

 legs. The female carries her ovipositor almost horizontal, and she 

 looks when on the wing like the lower two-thirds of the letter Z (/.). 

 G. nasalis, on the other hand, carries the ovipositor tucked under the 

 belly and almost parallel to the axis of the body ; this gives her when 

 on the wing a peculiar ball-like appearance ; G. nasalis, too, always 

 flies to the horse's head. As a rule, the cart-horse under observation 

 paid no attention to G. equi, but G. nasalis caused it great alarm. 

 The eggs of G. equi were in hundreds on the shoulders and fore legs; 

 but although the face and nostrils were searched carefully, no eggs or 



