522 



BRITISH LEPIDOPTERA. 



PAGE, 

 olivaceo-fasciata . . 86 



abs. olivacea, fenestrates .. 87 



Eutrichidae . . . . . . . . 1 1 1 



Suggested subdivisions, in. 

 Phytogeny, 112. Egg.-Egglay- 

 ing habits. — Embryo of Eu- 

 tricha quercifolia, 114. Larva? of 

 Dendrolimus pini and Cosmo- 

 triche potatoria compared, 114. 

 Larval scales, 115. ? genera- 

 tive organs of D. pini, 116. 

 Cocoons, 116. Temperature 

 experiments on O. pruni and 

 D. pini, etc., 117. Seasonal 

 dimorphism. — Sexual dimor- 

 phism, 118. Numerical pro- 

 portion between sexes. — An- 

 tennas. — Protective resem- 

 blances, 119. Gynandromor- 

 phism . — Hybridism . — Parthen- 

 ogenesis . . . . . . . . 120 



Metanastriinae .. .. 120 



Tribal divisions, 120. Phylo- 

 genetic inferences, 121. Com- 

 parison of Macrothylacia rubi 

 and M. pisidii, 122. Remark- 

 able species from Transvaal. 

 — Parthenogenesis . . . . 123 



Macrothylacia .. .. ..123 



M. rubi . . . . . . ..125 



Names of colour- vars. <? ..127 

 ditto ? . . . . . . . . 128 



var. pygmaea . . . . . . 130 



Cosmotrichinae .. .. . . 153 



Generic differences of Cos- 

 motriche and Routledgia, 153. 

 Distribution, 154. Alliance 

 with Eutrichids, 155. Gynan- 

 dromorphs . . . . . . 155 



Cosmotriche .. .. .. .. 155 



The genus Selenephera, 156. 

 Egg. — Larva, 157. Urtication. 

 — Pupa. — Cocoon .. .. 158 



C. potatoria .. .. .. .. 158 



Names of colour-vars. .. 162 



abs. inveisa, berolinensis .. 163 

 (var. askoldensis) .. ..164 



Eutrichinae .. .. .. ..183 



Tribal divisions, 183. Pupal 

 characters .. .. ..184 



Eutrichidi 184 



Gastropacha .. .. .. .. 185 



G. ilicifolia . . . . . . . 186 



Names of colour-vars. . . 189 



vars. sinina, japonica .. ..189 



Eutricha 199 



E. quercifolia . . . . . . 201 



Names of colour- vars. . . 204 



(var. salicifolia), ab. ulmifolia, 

 var. meridionalis . . . . 205 



dalmatina, (liocgii, ab. alnifolia 206 

 var. cerridifolia) . . . . 207 



Addendum : Poccilocampa populi, 



vars. albescens . . . . 224 



alboinarginata . . . . . . 225 



PAGE. 



Catalogue of Palaearctic Lachneides 225 



Dimorphides . . . . . . 229 



Previous groupings, 229. 

 The genus Chelepteryx, 230. 

 Affinities suggested by differ- 

 ent stages, 233. Cross-pairing. 

 — Temperature experiments . . 234 



Dimorpha . . . . . . . . 235 



Characters, 23b. Gynandromor- 

 phism. — Proportion of sexes. — 

 Extended duration • of pupal 

 stage. — Correction of Packard's 

 description of pupa . . 236 



D. versicolora . . . . . . 236 



Names of colour-vars. . . 239 



(var. lapponica) . . . . . . 240 



Attacides . . . . . . . . 205 



Larval specialisations, 265. 

 Hiibner's grouping, 266. Criti- 

 cism of Packard's views, 267. 

 Dyar's table of Attacid and 

 Sphingid distinctions. — Pack- 

 ard on the Citheroniidae, 268, 

 Hemileucidae and Saturniidae, 

 269. Bodine's grouping of 

 families ; Dyar's, 270 ; Grote's, 

 271. Dyar's criticisms. — Con- 

 vergence. — Packard's studies 

 of Attacid larvae, 273, and ova, 

 275. Attacid larvae ; specialisa- 

 tion ; development of tubercles, 

 276; protective characters; 

 remarkable armatures, 277 ; 

 change of colour when fullfed ; 

 exuviation. — Cocoons, 279 ; vari- 

 ation ; cocoon - cutter. — Pupal 

 characters, 280; anal armature ; 

 earlike tubercles, 281. Relation 

 to Dimorpha. — Sexual differ- 

 ences; antennae, 282. Sexual 

 organs. — Imagines, 283. — Sex- 

 ual dimorphism. — Colour-pat- 

 terns and resting-position .. 284 



Attacidae . . 285 



Subfamilies, 285 ; Packard on 

 origin of family, 287. External 

 sexual markings. — Antennal 

 hairs, 288. Bodine's grouping of 

 the genera, 289. Repeated pair- 

 ings. — G-ynandromorphism. — 

 Hybridisation, 290 ; hybrids — 

 (griihthsi, watsoni, americana, 

 mortoni, 292 ; heyeri, kirbyi, 

 293 ; moorei) . . . . . . 294 



Saturnia . . . . . . 294 



Generalised and specialised 

 species, 290. Hybridisation — 

 (hybrids - bornemanui . . . . 296 



hybrida, emiliae, hybrida-major, 

 hybrida-media . . . . . . 297 



schaufussi, standfussi, risii . . 298 

 schlumbcrgeri, dixeyi, complexa) 299 

 Degree of fertility, 299. General 

 conclusions. — Relative age 

 of European species, 300. Con- 



