SYNOPSIS OF CONTENTS. Vll. 



Remarks by Moore, Elwes, Leech, Pryer, etc., 67 ; var. decolor; var. 

 amurensis ; var. hellotia, 68; var. 2 )rax ^ te ^ es > var - dipdrides, 69; 

 Nearctic forms, 70; var. (an spec, dist.) comyntas ; description; sexual 

 peculiarities; egg, 72; caterpillar; food-plants; distribution, 73; 

 measurements; var. (cm spec, dist.) amyntula, 74; var. herrii; var. (an 

 spec, dist.) monica ; var. (an spec, dist.) tijua, 75 ; Underside markings 

 of E. argiades and allied species ; Chapman's tabulation ; Egg-laying, 

 76 ; Ovum, 77; Habits of larva, 78; Ontogeny of larva, 80; Larva, 81; 

 Food-plants; Pupation; Pupa, 84; Variation of pupa, 88; Time of 

 appearance, 89 ; Habits, 93 ; Habitats, 91 ; Reputed British examples of 

 E. argiades, 97 ; Distribution . . . . . . . . . . . . 98 



Genus Cupido, 101. Synonymy, 101 ; Schrank's diagnosis of genus Cupid o ; 



The genus as considered by various authors since Hiibner . . . . 102 



Cupido minimus, 104. Synonymy, 104 ; Original description ; Imago; Sexual 

 dimorphism; Variation, 105 ; ab. minutus, 108 ; ab. pallida; nb.obsoleta, 

 109; ab. semiobsoleta ; ab .' striata ; ah.pseudolm; var. alsoides, 110 ; var. 

 montana, 111 ; var. magna ; v&r.hoivkotci ; var. (an spec, dist.) lorquinii, 

 112; var. moreana ; Egg-laying, 114 ; Ovum, 116; Habits of larva, 117 ; 

 Larva, 120; Variation of larva, 125; Food-plants, 126; Parasites; 

 Puparium ; Pupa, 127 ; Time of appearance, 129 ; Habits, 137 ; Habitats, 

 141; British localities, 145 ; Distribution .. .. .. .. .. 147 



Tribe Plebeiidi, 150. Linne's and Fabricius' tribe, 150 ; Kluk's tribe, 151 ; 

 Scudder's diagnosis ; Imago, 152 ; Egg; Caterpillar at birth, 153 ; Mature 

 caterpillar; Chrysalis ; Grouping of the Palsearctic species, 154 ; General 

 characters of Plebeius ; Diagnosis of Plebeius, 155 ; of Aricia ; of 

 Vacciniina ; of Cyaniris, 156; olAlbulina; of Latiorina; of Agriad.es; 

 of Polyommatus ; of Hirsutina ; Plebeiid larval habits, 157; Pupal 

 characters ; Imaginal habits, 158 ; Distribution . . . . . . . . 159 



Genus Plebeius, 159. Synonymy, 159 ; Use of the term Plebeius by Linne, 

 Miiller, Kluk, etc., 160 ; Rusticus of Hiibner; Lycaeides of Scudder ; The 

 Plebeiid egg; Larva, 162; Pupa; Dimorphism; Gynandromorphism, 

 163; Provisional range of species in Plebeius; Group distribution: 

 Assembling habit . . . . . . . . . . . . . . . . 164 



Plebeius argus, 164. Synonymy, 164; The true argus, 166; Original descrip- 

 tion, 167; Other Linnean descriptions, 168 ; Imago; Sexual dimorphism, 

 169; Gynandromorphs, 170; Variation, 171. Underside aberrations — 

 ab. vulgaris ; ab. valesiana ; ab. unipuncta ; ab. caeca; ab. maritimus, 

 184; ab. radiata; 'dub.jancta, 185; ab. approximate/ -jun eta ; ab. obsoleta- 

 juncta; ab. cuneata ; ab. leodorus, 186; Upperside aberrations — ab. alcippe, 

 186; ab. obscura; ab. bella; ab. rufolunulata, 187; ab. duplex; aib.falloui; 

 ab. caeruleo- cuneata; ab. argyrotoxus, 188; ab. argyra; ab. argyrophalara, 

 189; Localraces — var. philouomus, 190; v&v.aegidion ; var. killia si, 191; var. 

 aegon; var. aegiades ; var. orientalis, 192 ; var. iberica ; var. hypochiona, 

 194 ; var. hypochiona- graeca ; var. bejarensis, 196 ; var. casaicus, 197 ; 

 var. branuelasensis ; var. vigensis ; var. pyrenaica, 198 ; var. hypochiono- 

 ides ; var . sifanica ; var. ongodai, 199 ; var. micrargus ; var. pseudaegon, 

 200; var. coreana ; var. Corsica, 201.; var. masseyi, 202; var. cretaceus, 

 203 ; Pathological examples, 204 ; Teratological examples ; Gen italic 

 variation; Comparison of ?s of P. argus and P. argyrognomon, 205; 

 Egg-laying, 208 ; Ovum, 209 ; Habits of larva, 210 ; Symbiosis between 

 larvse of P. argus and ants, 211 ; Ontogeny of larva, 212 ; Larva, 213 ; 

 Variation of larva, 221; Foodplants; Puparium; Pupa, 222 ; Time of 

 appearance, 227; Habits, 235 ; Habitats, 238; British localities, 243; 

 Distribution . . . . . . . . . . . . . . . . . . 244 



Genus Cyaniris, 248. Synonymy, 248; Dalman's, Billberg's, and Guenee's 

 diagnoses, 249 ; Cyaniris semiargus and Cupido minimus, 250 ; Cyanirid 

 egg ; Larval habits and characters, 251 ; Pupa ; Meyrick's treatment, 252 ; 

 Provisional range of species in Cyaniris . . . . . . . . . . 253 



Cyaniris semiabgus, 253. Synonymy, 253 ; Original description, 254 ; Imago; 

 Sexual dimorphism ; Gynandromorph ; Variation, 255 ; ab. byzas, 263 ; 

 ab. byze ; ab. argopoeus ; ab. argopoei, 264; ab. damoetds ; ab. byzenus, 

 265; ab. byzene, 266; Underside aberrations — ab. aetnaea ; ab. caeca, 

 266; ab. spadae ; ab. striata, 267 ; afo.lineata, 268; Local races — var. 

 cimon; var. coelestina, 268; var. montana, 269; Asiatic races — var. 

 uralensis ; var. altaiana, 270; var. amurensis; var. f erg ana, 271 ; Races 



