CONTENTS. 
PAGE 
List of Fellows... “fe Bes a a ~ ze ate ies ix 
Additions to the Library x ue ES ve ae i .. XXVili 
Errata... ees nis Bac oe cob He us “i we XLvil 
MEMOIRS 
PAGE 
I. On the Forms and Geographical Distribution of Acraea lycoa, 
Godt., and Acraea johnstoni,Godm. By Harry ELTRINGHAM, 
M.A. FB ZS .y ee tet 1 
II. Some cndeerbed Budeeritias ie Tater ve feaeew By 
Sir Grorcr H. Kenrics, F.E.S.. ate 16 
III. A Revision of the Genus ane Serv. (Dermaptera, By 
Matcorm Burr, D.Sc., F.L.S8., F.Z.8., F.E.S. 21 
IV. Descriptions of some hiner unknown, or little tan ae Wiarvad 
and Pupae of South African Rhopalocera, with notes on their 
Life-histories. By Marcaret E. Fountaine, F.E.S. . we 48 
V. Hymenoptera aculeata collected in Algeria. The Sphegidae. 
(Being Part V of the work commenced by the late EpwarpD 
SaunpeErs, F.R.S., in Trans. Ent. Soc. 1901, p. 515.) Revised 
and completed by "the Rev. F. D. Morice, M.A. , FES. 62 
VI. Experiments in 1909 and 1910 upon the ectounielution heewens 
lepidopterous larvae and pupae and their surroundings. By 
ELIzABETH BripGEs. Communicated by Prof. E. B. Pouron, 
D.Sc., M.A., F.B.S., ete. ... 136 
VII. On the eo Mapes of Latiorina iipcciend) ee an . amyr- 
mecophilous Plebeiid “ Blue” eee By T. A. ‘CHAPMAN, 
MDPHAs. 2. 148 
VIII. The ees of Orgyia aatendead (ant. By 7. A. CHAPMAN, M. D. 160 
IX. New Genera and Species of Striphnopterygidae and Lasiocampidae 
in the British Museum. Described by Cur. Aurivituius ... 161 
X. Notes on Insect Enemies in the Tropics and their influence on 
Mimicry. By HE. A. Cocxayng, F.L.S8., F.ES. ... ass 168 
XI. The Hybernation of Vanessa atalanta in Captivity. oy L. W. 
Newman, F.E.S. af 173 
XII. Further Observations on Wenapoeny Son Brenan ata 
Slavery in Ants. By Horace Sr. J. K. Donisruorps, F.Z.S. 175 
XIII. Two new species of Lycaenopsis from Borneo (Sarawak). BY 
Dr. T. A. CHAPMAN. aa 184 
XIV. Description of a new nymphaline Butterfly ou Brae Tadiae 
By Hamitron H. Druce, F.L.S., etc. ... 187 
XV. New and unrecorded species of aves Heterocera from 
Japan. By A. E. Wireman, F.E.S : 189 
XVI. Bryocorina nonnulla aethiopica aeecoe ab O. “M. Bromo 
Hon. F.E.S., et B. Poprrus, cum tabula colorata ia 408 
XVII, A factor in the production of mutual resemblance in alned 
species of Butterflies; a presumed Miillerian combination of 
Euploeas in South India and Amauris in South Africa. sh 
Linut.-Cotonet N. Manners, F.Z.8., F.E.S. ... Ley 417 
XVIII. Description de quelques espéces tiservalles de Lucanides appar- 
tenant aux collections du British Museum. Par M. Henri 
Bo1LEau, F.E.S. aa 426 
XIX. On the Hymenopterous Parasites of Gplegpiare. Tie Stele 
ment. By Ernest A. Evwiotr, F.Z.8., and CraupE Morey, 
BE ZiSe acs mia Mia nee a a. 452 
