INDEX 



GENERAL. 



Aberrations of Agrotis corticea, 278 

 Aberrations of Colias croceus and Agrotis 



exelarnationis, 259 

 Acherontia atropos at sea , 278 

 Acontia luctuosa at sugar, 20 

 Acrobasis tumidana, Schiff., 112 

 Additions to Glamorgan List of Lepi- 



doptera, 63 

 A fortnight in Carnarvonshire, 22 

 An entomological holiday in S. France, 



147 

 An uncommon Ant, 2S1 

 An unusual variety of Chaerocampa 



elpenor, 278 

 "A new Callimorpha from N.W. Persia 



and Armenia, 196 

 A new Genus and Species of Micro- 



lepidoptera from New Zealand, 270 

 A new Myrnarid from North AVales, 204 

 A record capture of Blues, 238 

 Argynnis lathonia at Gravesend. 88 

 Aricia medon ah. albiannulata, Harr.. 



260 

 Attractiveness of electric light for 



moths, 89, 90, 138 

 A variety of Cupido minimus, 212 



Blastobasis lignea, Wlsm. (Lep.) : A 



species new to Britain, 145 

 Blue spots in Chrysophanus phlaeas, 



36 

 Boreus hyemalis, Linn. (Neuroptera). 91 

 British Macrolepidoptera in the Hope 



Department of the Oxford University 



Museum, Notes on the, 12 

 British Neuroptera in 1921, Notes on, 



57 

 British Odonata in 1920, 4 

 British Proctotrypidae, 1, 59, 82, 89, 108, 



132, 157, 182 

 Butterflies attracted by human perspira- 

 tion, 112,212, 282 

 Butterflies of the Vienna district, 65 



Cannibalism among Cuculha verbasci, 



190, 280 

 Catocala fraxini in East Kent, 237 

 Celerio lineata livornica, Esp., in the 



Isle of Wight, 1S8 

 Chrysophanus phlaeas, var., 190 



Colias croceus ab. faillae in Lines, 277 



ab. helicina at Plymouth, 278 

 Colias croceus, Fourc. (edusa), Fab., 7, 

 211 



Colias croceus and Herse convolvuli in 

 Surrey, 255 



Colias croceus and other Lepidoptera in 

 Cumberland, 233 



Colias croceus at Delamere, 166 ; in 

 Derbyshire, 234 ; in Sussex, 210; in 

 August at Brighton, 210 ; in Bucks, 

 Cambridgeshire, Glamorgan, Lincoln- 

 shire, Shropshire, Suffolk, Worcester- 

 shire, 187 ; in Cheshire. 163 ; in 

 Devonshire, 37, 162 ; in Hunts, 234 ; 

 in Hants, 235 ; in Lancashire and 

 Westmorland, 234 ; in Northumber- 

 land, 234; in N. Wales, 255; in 

 Somerset in May, July and August, 

 210 ; (edusa) in Surrey, 162 ; in Surrey 

 and N. Cornwall, 210 ; in Sussex, 162 ; 

 in Wiltshire, 162; and Vanessa ata- 

 lanta in the Isle of Wight, 162 



Colias edusa and C. electra : Proportion 

 of pale forms, 88 



Colias edusa and some other species at 

 Eastbourne, 17 



Colias edusa in South Devon, 37; in 

 Dorset, 18 ; in Kent, 18 



Colias edusa migration in Cannes dis- 

 trict, 35 



Colias electra and C. lesbia (?), 36 



Collecting by powerful lights, 63 



Collecting in 1920 in Gloucestershire, 

 N. Wales, etc., 155 



Colour-preservation in Dragonrlu 



Co-ordinated rhythm in Insects : with a 

 record of sound production in an 

 Aphid, 173 



Correction of a generic name. 16 



Correction of nomenclature of Micro- 

 lepidoptera, 209 



Crickets and refuse dumps, 23 



Curious aberrations of Danaia clirv 

 sippus, L., 178 



Cydia citrana, Hb., near Wanstead, 188 



Danais chrysippus, I... ab. candidal a, 



Hay ward. 212 

 Daplrnis nerii off Scotland, 278 



