INDEX. 



363 



Pleheius aecion and P. argus, Com- 

 parison of . . . . . . . . 38 



Plusia gamma and Pyrameis cardui 

 migrating together . . . . 127 



Poecilocampa populi without basal 

 marks . . . . . . . . 350 



Polygonia c-alhum in the London 



district 276 



Polyommatiiii hellargus in Bucks . . 349 

 Porthema chrysorrJwea at Chi- 

 chester, 274 ; in north Essex . . 165 

 Preservation of Psychid females . . 267 

 Primary and secondary sexual 

 characters of Lepidoptera, Con- 

 nection between . . . . . . 199 



Probable myrmeeophilous habits 

 of the genus Astilbus . . . . 385 



Protective coloration in Mastax 

 semicaeca, 3; hi Hierodulanotata, 

 3 ; of Eumastacidae, 95 ; of a 

 Tettigid, 95; Hymenojnisbicornis, 

 97 ; in larvee of Ampliidasys 

 hetularia . . . . . . . . 107 



Psychid genera, New . . . . 20 



Psychidea graecella, Note on 86, 168 

 Psychides in 1900, 145 ; a correction 217 

 Publication fund of the City of 

 London Ent. Society . . . . 84 



Pupa-digging . . . . 250, 264 



Pupation oiLozoperafrancillonana 223 

 Pyrameis atalanta in January . . 53 



Eare Coleoptera, 28, 262 ; Noetuids 

 in Guernsey, 273 ; sawfiies and 

 Diptera in Scotland . . . . 308 



'Renving Sesia 2)hilanthiformis .. 218 

 Relationship between larval and 

 imaginal legs of Lepidoptera 

 (with plate) 141, 177 ; of Philea, 

 Cyhosia and Endrosa . . . . 230 



Restoration of green colour in Lepi- 

 doptera . . . . . . . . 221 



Retarded emergence in Sinerintlm.-^ 



ocellatuii and Cerura vinula . . 247 

 Revision of the genus Derotmema . . 112 

 Rhinocypha fulgidipeuiiis captured 193 

 Eumia luteolata in September, 304, 348 



Sagacity of larva of Galleria mello- 

 nella 230 



Sale of the " Sam Stevens " collec- 

 tion 110, 111 



Scolytus rugulosus in Pnimni lauro- 

 cerasus . . . . . . . . 77 



Sesia cynipiformis and S. citlici- 

 formis near Croydon . . . . 134 



Smerlnthns ocellatus two years in 

 pupal stage . . . . . . 217 



Soniatochlora metallica. in Scotland 266 



South London Ent. Society ; Field 

 Meeting(with photo) 197 ; Officers 

 of, for 1900 27 



Sphingids, Unusual time of appear- 

 ance . . . . . . . . 348 



Spiling omorpha monteironis said to 

 damage fruit, 193 ; corrected . . 267 



Sphinx convolinili at Chichester, 

 274; at Weymouth, 302; in 

 Somerset, 53 ; and at Penarth . . 54 



Spring insects, 136 ; lepidoptera, 



188-191 



Stauropus fagi in Dormans Park 219 



Stilbia anomala, Habits of female 305 



Stridulation of Mecopoda elongata 96 



Sugaring in the Isle of Man, 244 ; 

 in Monk's Wood 343 



Swarming oiAiwsia archippus, 207 ; 

 of Oligostima araeaUs . . . . 222 



Swiss butterflies. Three seasons 

 among . . . . . . . . 4 



Synonymy of some of the Emerald 

 moths 180 



Teplirosia histortata and T. crepus- 



cularia, Notes on . . . . 9 



Tetrilus a yietiiius in nests of Formica 



riifa. Sbiid. Lasi^is fuliginosus .. 165 



Thatch-beating 250 



Thyreostheniiis hiovatus in nests of 



Formica rufa .. . . 138, 163 



Tortrix pronubana in Guernsey . . 316 

 Triphaena pronuha in April . . 166 



Triple-brooded and double-brooded 



species of Lepidoptera . . . . 296 



Trogophloeus, Notes on some unde- 



scribed species of . . .. .. 308 



Tubercle on the first dorsal segment 



of Poecilocerus sokotraniis . . 112 



Types of genera Gorf^Ha and Ocliria 241 



Vanessids in Somerset . . . . 53 



Visitors at sugar. Unusual . . 346 

 Vitality of Smerinthus ocellatus bred 



in confinement . . . . . . 108 



Winter capture of Gonoptera lihatrix 



27, 54 



Years of abundance of Colias edusa 



and C. hyale in Britain . . . , 71 



Yorkshire Naturalists' Union, 251, 353 



Pl. I. 

 Pl. II. 

 Pl. III. 

 Pl. IV. 

 Pl. V. 



LIST OF ILLUSTRATIONS, &c. 



To be placed opposite page, 

 1 



Portrait of Brunner von Wattenwyl 

 New Exotic Fleas . . 

 The guests of Ants and Termites 

 Neuration and tibial spurs of Psychids 

 Antennse of Psychides 



36 



72 



89 



122 



