223 



55 



79 



163 

 76 



137 



21 



87 

 199 



39 ; G. ligniperda, 39 ; B. con 

 sortaria, 39 ; P. pedaria, 56 

 Nolidae, 135; Af. tiliae, 164 

 if. abruptaria 

 Mental attitude towards Insects 

 Migration night and morning 40, 

 Mimetic Association between, 

 Euploeine and Danaine, 135 ; 

 Heliconine species 

 Mongrels of C. 11-punctata 

 Mosquito, Investigation Committee, 



118, 200 ; new to Science 

 Myrmecophilous, Hymenoptera, 

 New Species of, L. A. Box, 15 ; 

 Notes for 1920, H. Donisthorpe 

 New Palasaaetic species, of Lycae- 

 ninae, G. T. Bethune-Baker, 63 ; 

 of Coleoptera, 64 ; races of Z. 

 filipendulae, 81, etc. ; races of Z . 

 stoechadis, 81, etc. ; ab. of C. 

 7 -punctata, 130 ; ab. of S. plum- 

 aria, 138 ; British Cecidomyiidse, 

 151, 166 ; races of European 

 butterflies, 172, 190 ; Society for 

 Hampshire, 179 ; British Tortrix 180 

 Nomenclature, P. icarus, 54, 76 ; 

 Geographical races of Z. filipen- 

 dulae 

 Notes on Collecting 17, 34, 178, 

 Notes, from Kent, Middlesex and 

 Surrey, A. Sich, 17; West Sussex, 

 J. F. Bird, 48; on Collecting 

 Butterflies at Hong Kong, G. C. 

 Woodward, 67 ; from Putney, H. 

 Donisthorpe, 116 : from La S. 

 Baume, G. H. Gurney, 133 ; 

 from Mucking, Bev. C. B. N. 

 Burrows, 178 ; C. argiolus, Bev. 

 G. H. Baynor 

 Obituary 



Observations on the Fam. Goleo- 

 phoridae — Descent and Ovum, 



A. Sich ... 

 Occurrence of, so-called type P. 



napi in Alpine regions, B. S. 

 Warren, 91 ; P. c- album in Bir- 

 mingham, E. Grose Hodge 



Officers and Council of, Entomo- 

 logical Soc. of Lond., 20; S. 

 London Ent. Soc. 



Oriental races of Z. filipendulae . . 



Oviposition in Alpine butterflies, 



B. S. Warren 



Ovum and case of G. ibipennella, 



32 ; of Coleophorids, 132 ; of G. 

 ornatipennella 



Pairing habit of C. argiolus 



P. moneta in Somerset 



Polymorphism and Baces of Euro- 

 pean Butterflies, B. Verity 170, 



190, 209 



"-Progress," Prof. W. M. Wheeler, 96 



Protective coloration and adjust- 

 ment in P. rapae pupa . . . . 137 



Pseudophoresy . . . . . . 57 



201 

 164 



131 



178 



20 



88 



188 



201 



35 



PAGE 



Pupation of, P. dimidiata . . . . 59 



Pyrenees in 1920, The, D. H. 

 Pearson . . . . . . . . 7 



Baces of, Z. filipendulae, 81, 105, 

 122 ; Z. stoechadis . . . . 150 



Rare, var. confluens of C. 10-punc- 

 tata, 35 ; C. 7 -punctata, 36 ; A. 

 britannus, 36 ; L. extranea, 39 ; 

 M. unionalis, 98, 137 ; Diptera 120 



Bay Society 78 



Rearing C. quadripunctaria (hera), 



J. F. Bird 214 



Records, of G. 11-punctata, 75 ; 

 New, for the Constantinople 

 District, P. P. Graves . . . . 165 



Reviews, Forel's " le Monde Social 

 des Fourmis," 59; Holland's 

 " Lepidoptera of the Congo," 99 ; 

 Rebel's '-Lepidoptera of the 

 Amanus," 141; Lucas' "Brit. 

 Orthoptera," 143, Proceedings 

 of the S. London Entomological 

 Soc, 183 ; Bull, of the Hill 

 Museum, 203 ; Insect Trans- 

 formations, 219 ; Applied Ento- 

 mology . . . . . . . . 220 



Russian entomologists, Notes on, 



Malcolm Burr 19 



Scale defectiveness in E. antiopa. . 205 

 Scarcity of, Rhopalocera in Italy, 

 26 ; Species at Mont Dore, 63 ; 

 Butterflies in the past summer, 

 200 ; Species near London .'. 202 

 Scientific Notes . . ■ • .■• 32, 76 

 Season in Italy, 1920, 75 ; Notes 

 on the . . . . . . . . 202 



Seasonal Polymorphism in Butter- 

 flies, R. Verity . . 170, 190, 209 

 Second brood of, G. dispar var. 

 rutilus, 179; P. plantaginis, 199; 

 A. caja, 200; O. sambucaria, 

 201 ; C. culmellus . . . . 218 



Shelkovikav, Alexander Borisovitch 19 

 Six-spotted Z. trifolii . . . . 139 



Snow, Summer Alpine . . . . 4 



Societies 38, 57, 78. 98, 118, 134, 



163, 179, 203 

 South London Entomological Soc. 



38, 98, 138, 164, 180, 203 

 Spiders ants . . . . . . . . 24 



Stridulation in Saturniids, etc. 136, 138 

 Table of, British Species of Gionus, 

 65 ; individual variation in Z. 

 stoechadis, 148 ; European species 

 of Aeolopus (Orth.) ' . . . . 157 



Teratological Form of, F. auricu- 

 laria, 79 ; • B. exilis, 199 ; S. 

 cecropia . . . . . . . . 199 



Terms for gradation of Marking . . 147 

 Third brood of P. chloridice . . 199 



Three weeks at S. Martin Vesubie, 

 G. T. Bethune-Baker . . . . 185 



Tropical Medicine, A Visit to the 

 Liverpool, School of . . . . 182 



Types of Coleophorid ova . . . . 132 



