IHO THE KNTOMOUXilSX's RKCORH. 



formed the food of s\ lemoUa, H. H. Druce. They had been sent in 

 spirits by Mr. \V. A. Lamborn and, althoutrh unfortunately badly 

 attacked by fungus, had been placed without hesitation in the genus 

 Dactj/lnpiiis by Professor Newstead. Eurypkla drtope, Cramer, 



SHOWN TO BK DISTINCT FROM E. HIARBAS, DrUKY, BY \V. A. LaMBORN.^ 



Professor Ponlton exhibited examples of the above-named species, 

 bred by Mr. W. A. Lamborn in the Lagos district. Mr. Lamborn 

 had bred considerable families of ({ri/o/ir three times, and hiarbnn once 

 from known female parents. The dri/ope parents produced nothing 

 but dtyiipe, the hiarhax nothing but liiarlxis. It was therefore almost 

 certain that the two forms were distinct species, at any rate in the 

 Lagos district. Further Captures of Pseudacr.eas, etc., on Damba 

 Island, near Entebbe, by Dr. G. D. A. Carpenter. — Professor 

 Poulton exhibited specimens captured on December 8rd, 10th and 

 17th, 1911, by Dr. Carpenter, in the primitive forest which still exists 

 in the centre of Damba Island. Baronia brevicornis. — Mr. A. E. 

 Gibbs exhibited two specimens of this scarce butterfly from Mexico. 

 Aberrations of Central European Rhopalocera. — Mr. Douglas 

 Pearson exhibited aberrations of the genera Melitaea and Erebia, 

 amongst which were some striking forms of K. ittt/gnr, K. ceto and 

 3/. raria, and a remarkably variegated $ of M. aiirdia, generally the 

 most constant of the group. A new suborder of Dermaptera. — Dr. 

 Jordan exhibited on behalf of Dr. Malcolm Burr a pair of Arixenia, 

 n. sp., found in vast numbers in Java, for which it has been necessary 

 to erect a new suborder. Difference of Food and Habit in closely 

 related 8awflies. — The Rev. F, D. Morice drew attention to a note 

 in the Zeitxchrift fur wisseuschaftliche Insekten-biolniiie, by Dr. E, 

 Enslin, on closely related species of sawflies, one of which was 

 parthenogenetic and the other not. He said that i:rnesus varus and 

 tttti/x'n have very similar yet distinguishable imagines, but quite 

 different larvae, and live on difi'erent plants ; the larva of cari(s is 

 green and lives on alder, that of lap'pex is black and lives on birch. 

 Von Rossum reared varus imagines (all $ s) from alder, which 

 produced a parthenogenetic next brood of larva\ These were fed on 

 birch and became brown, and the resulting imagines showed a 

 tendency to the coloration of latipes. The J of varus is almost if not 

 quite unknown, that of latipes is not rare. Von Rossum suggests 

 that varus and latipes may be races of one species varying in characters 

 according to their diet in the larval stage. It is curious that very 

 many sawfly larvae feeding on alder are almost exclusivel)^ known in 

 the ? sex, while closely similar species living on birch (when bred 

 artificially) always produce numerous males. A discussion on the 

 effects of food arose, in which Messrs. Waterhouse, Cockayne and 

 l*"'enn took part. Dr. Chapman observed that among the Psychids 

 there are seveial cases of closely related forms, perhaps of the same 

 species, of which one is pai'theiiogenetic and the other (generally the 

 more southern) is not so. 



The City of London Entomolouioal Society. — Ifercmber 19^/t, 

 1911. — The breeding of M. atropos from the eoo, — Rev. C. R. N. 

 Burrows exhibited a Manduca atropos $ taken at Mucking, Essex, 

 June 19th, 1911, with some of the unlaid ova, of which he had 

 abstracted 218. Only one ovum was laid, and this was reared. 

 Aberration of E. caudamines. — Mr, H. B. Williams exhibited a 



