432 



ANALYTICAL INDEX 



suggested causes of ignorance of 

 joint essay (1858), 196 ; mutational 

 views of, 195 ; belief (1859) in trans- 

 mutation rather than transition, 195, 

 200; influence of Origin on, 196, 

 200, 201 ; programme of training in 

 science (1856), 198 ; voyage of 

 Rattlesnake, 199 ; views of, on 

 evolution before Origin, 199, 200 ; 

 not essentially a naturalist, 200, 202 ; 

 approves system of W. S. Macleay, 

 200 ; on the basis of scientific con- 

 viction, 201, 202 ; opinions on Natural 

 Selection, 201, 202 ; with J. D. 

 Hooker in the Rhone valley, 202 ; 

 the champion of scientific freedom, 

 219; references to letters from C. 

 Darwin to, 78, 79, 80, 82, 91, 126, 196 ; 

 to C. Darwin from, 4, 196 ; to J. D. 

 Hooker from, 195 ; to C. Kingsley 

 from, 77, 78 ; to C. Lyell from, 195, 

 200 ; to W. S. Macleay from, 200. 



Huxley's layer of hair, 198, 199. 



Hyas coarctata, 314. 



Hybernation, of African insects, 

 209 ; colour adjustment of L. querci- 

 folia larvae determined before, 307. 



Hybernia leucophaearia, 156. 



Hybrids which do not follow Men- 

 delian principle abundant, xxxv, 

 xxxv n. 1 ; of Hieracium proved by 

 Mendel not to follow his principle, 

 xxxv n. 1 ; sterility of, 63, 64, 77, 78 ; 

 sterility of, due to Asyngamy, 80-4; of 

 Common and Chinese goose fertile, 

 83 ; of Ring Dove and domestic 

 pigeon fertile, 83, 84; 'illegitimate' 

 seedlings of heterostyled plant com- 

 pared with, 91. 



Hydrocorallina, affinity between 

 living and Palaeozoic, 28. 



Hydrozoa in classification, 25. 



Hyelosia as mimics of Ithomiinae, 

 264 ; method of attaining trans- 

 parency in, 266. 



hylas, Cephonodes, loss of scales 

 by, 363. 



Hylophila (H alias) prasinana, 149. 



Hymenoptera, the Instincts 

 ob', V. 160-6: see also 118, 119, 

 146, 147. 



Hymenoptera (see also Ants, Bees, 

 Fossores, Humble-bees, Ichneumon- 

 ids, Saw-flies, Wasps, Xylocopidae ; 

 see also classification of examples 

 of mimicry, 389-93) : late evolution 

 of, 38 ; unique interest of the, 52 ; 



di- and polymorphism in, 72 ; tran- 

 sition in mode of defence of Phyto- 

 phagous larvae of, 319, 320; best 

 examples of instinct supplied by 

 Fossorial, 118, 119, 146, 147, 160-4; 

 W. S. Macleay and Kirby and Spence 

 on resemblance of Diptera to, 220, 

 221 ; mimicry of, by diurnal forms, 

 250 ; mimicry of, in various ways, 

 250-60 ; defence of, evident, 268 ; 

 uniformity in groups of, 278, 279 ; 

 many examples of mimicry of Bate- 

 sian, 376; also Miillerian, 231, 376; 

 Dipterous mimics of, probably not 

 aggressive, 378. 



Hymenopus bicornis, 378 n. 3. 



Hyolithes in Palaeozoic, 42. 



Hypanis (Byblid) acheloia 

 (gotzius), 87, 341. 



Hyperechia, mimetic of Xylocopid 

 bee in Borneo and S. Africa, 276. 



Hypertely of Brunner von 

 Wattenwyl, X. 302, 303. 



Hypolimnas a genus mimetic of 

 Danainae, 216; ancestral pattern in 

 non-mimetic males of, 216; resem- 

 blance between non-mimetic males 

 of, 245 ; probably a distasteful genus, 

 and mimicry of Miillerian, 216, 217, 

 372 ; complex nature of mimicry of 

 Euploea by, 241 ; mimetic species of 

 at once distinguished from models, 



35°- 



Hypolimnas (Euralia) anthedon, 

 338 ; — bolina, 245, 372 ; — dexithea, 

 216; — misippus, 215-18, 245, 247, 

 347, 355, 365 n. 1, 372, 381, 382 ; 

 — (Euralia) wahlbergi, 338. 



Hypotheses proposed as sub- 

 stitutes for Natural Selection 

 as the Explanation of Mimicry, 

 &c, VIII. 224, 225 : see also 271-2. 



Hypsidae (Pericopidae) as mimics 

 of Ithomiinae, 264 ; method of at- 

 taining transparency in, 266 ; African 

 Hypsid moth seized and rejected by 

 wild drongo, 284. 



I 



Ibis, vol. i, 195. 



Ichneumonids (in the broad sense); 

 see classification of the examples of 

 mimicry, 390, 392. 



'Identical' twins, F.Galton on, 132, 

 J 34> I 35, l 3% n - i of tne same sex, 

 132; enclosed in same embryonic 

 membranes, 133 ; product of a single 



