21 J: [September, 



^ocictn. 



Entomological Society of London : June 6th, 1900. — Mr. Geokge Uenky 

 Veeeall, President, in the Chair. 



Mr. Hedworth Foulkes, B.Se., of The College, Reading ; and the Rev. H. C. 

 Lang, M.D., of All Saints' Vicarage, Southend-on-Sea ; were elected Fellows of the 

 Society. 



Mr. G. 11. Verrall exhibited a species of the genus Ceratitis, Macleay, ap- 

 parently identical with Bigot's Cfrenivillatus from the Gold Coast (W. Africa). 

 Mr. Claude Fuller, State Entoniologist for the Department of Agriculture, Natal 

 writes of this as " one of our greatest local pests which is responsible for the 

 destruction of tons of fruit ; the larva3 infest apples, apricots, peaches, plums, 

 oranges, mangos, guavas, and I have reared them from the berries of Solanuni 

 giganteum." Mr. Verrall also exhibited a very handsome Trypetid reared from the 

 fruit of Alimusops caffra by Mr. Fuller, at Durban. Mr. C. Waterhouse, specimens 

 of a Hemipteron, Aspongopus nepalensis, from Capt. Gorman, I. M.S., who states 

 that they are found under stones in the dry river-beds of Assam ; they are much 

 sought after by the natives, who use them for food pounded up and mixed witii rice. 

 Mr. Merrifield exhibited a number of pupae of Aporia cratcegi, and called attention 

 to the want of correspondence between the markings on the pupal and those on the 

 imaginal wing. On the latter, as is well known, tliere are no spots, only darkened 

 nervures, the darkness spreading out a little on the outer margin, but on the former 

 there are black spots, some of them forming an oblique black row across the wing, a 

 series of black marginal spots and no darkened nervure. As might be expected of 

 an insect whose larva pupates by preference on stems screened by foliage, its colour 

 is not very greatly affected by its surroundings. Mr. Merrifield, some enlarged 

 coloured photographs of the green and dark forms of Papilio Machaon, obtained 

 by causing the larva3 to pupate on green, yellow, or orange surfaces, and on dark 

 ones respectively. Whether the pupa was to be green or dark was to be determined 

 by the surroundings to which it had been exposed before it had cast off the larval 

 skin, and if it was going to be a dark one, the dark colouring came on exactly the 

 same in complete darkness as in light, t^ir G. F. Hampson exhibited specimens of 

 a moth belonging to the sub-family HydrocampincB of the Pyralidce, Oligostigma 

 arcBab's, Hampson, from Ceylon, where his correspondent, Mr. J. Pole, had met with 

 a swarm on an island in a river, which he estimated at 20,000. When disturbed 

 the buzz made by their wings was quite audible, and after three waves of the net 236 

 specimens were bottled from round its edges, the net still appearing quite full ; as in 

 the some thirty specimens sent the sexes were in almost even proportions, this was 

 not a case of male assemblage. Also cleared wings, showing the neuration of 

 Diacrisia russula, Tyria jacobace, Callimorpha Hera, and C. dominula ; he con- 

 tended that the genus Callimorpha should be removed from the Arctiadce and 

 placed in the Hypsidce, where it is closely allied to Nyctemera callarctia and other 

 genera, and that the fully developed proboscis, the non-pectinate antennae, the 1 

 smoother scaling, the more diurnal habit, and the larvaj being scantily clothed with i 

 hair, all bore out the correctness of this association. Dr. Chajnnan, a portion of a 

 stem of Ferula communis from He St. Marguerite, near Cannes, showing pupa cases ,' 



