268 



~ INDEX. 



B. 



PAGE 



Beckia .... 39, 148 



— albinos . . 21, 24, 149 



— argentea .... 149 

 Bourlet, species described by 



^ 15,16 



— " sur les Podures " . 14, 32 



— " sur les Podurelles" . 16 

 Bouriet's genera . . 14, 17 

 Brauer on the original insect 



stock ..... 45 

 Burmeister on tlie Thysanura 



13, 32 



C. 



Campodea, 22, 26, 39, 202, 203, 212 

 — , probable resemblance of, 

 to tlie j)arent stock . 47, 52 



— fragilis .... 213 



— staphylinus . . 7, 212 

 Campodeadfe . . 39, 211 

 Campodese, Meinert's memoir 



on tbe . . . . 29 

 " CatcV the ... 69 

 Change from mandibulate to 



non-mandibulate condition 51 

 Changes, developmental and 



adaptive .... 43 

 Choreutes cingulatus . . 129 



— villosus .... 131 



— plumbeus .... 138 



— lignorum .... 152 



— nivalis .... 158 

 Classification of the Collem- 



bola and Thysannra 31 — 39 



— , table of the, adopted in 



the present work . . 39 

 Cassification of the Thysa- 

 nnra, Latreille's . . 11 



COLLEMBOLA . 1, 29, 40, 100 



— , classification of the . 31 



— , Dana's view of the . . 34 



— , general description of the 55 



— , head of the ... 56 



— , internal anatomy of . 73 



— , signification of the name 36 



— , table of classification of . 39 

 — , two principal characters 



of the order ... 49 

 Cuvier's view of the Thysa- 



nura ..... 32 



Oyphodeirus .... 20 



— asneus . . .21, 154 



Cyphodeirus agilis 



— albinos 



— capucinus 



— flaveus 



— gibbulus 



— giganteus 



— lignorum 



— parvulus 



— pulex 



— pusillus 



— violaceus 

 Cyphoderus 



PAGE 



21, 155 

 21, 149 

 21, 150 



. 157 

 21, 153 



. 157 

 21, 152 

 21, 157 



. 153 

 21, 156 



. 154 



. 27 



D. 



Dana's view of the Thysanura 

 and Collembola . . 34 



Darwin on the progenitor of 

 all insects .... 45 



Darwinian theory ... 40 



Degeer, memoirs of, on the 

 group .... 3 



— , species described by . 9, 10 



Degeeria 



— albocincta 



— annul ata . 



— atra . 



— corticalis . 



— crassicornis 



— decora 



— disjuncta . 



— domestica 



— elongata . 



— erudita 



— fasciata 



— fenestrarum 



— fusiformis 



— incerta 



— lanuginosa 



— margaritacea 



— membranea 



— muscoruni 



— Nicoletii . 



— nigromaculata 



— nivalis 



6, 7, 8, 15, 16, 22, 24, 25, 158 



— pi 28 



22, 24, 145 

 22, 24, 147 



20, 27, 39, 158 

 . 13, 160 

 10, 13, 16, 28, 159 



. 166 

 22, 24, 164 



. 148 



. 166 

 22, 24, 163 

 22, 24, 144 

 22, 24, 147 

 22, 24, 147 



. 166 

 15, 25, 165 



. 159 



. 166 

 22, 24, 161 

 22, 24, 143 



. 165 

 22, 24, 164 



. 161 

 . 3,15,25 



— platani 



— priini 



— variegata 

 Degeeriadfe 



Description, Latreille's, of the 

 Thysanura 



24, 165 

 39, 129 



