INDEX. 



(Illustrations are indicated by heavy-faced type.) 



Aberrant coloring, 191. 



Accessory glands, 82. 



Accessory sexual characteris- 

 tics, 192. 



Adaptations to surroundings, 

 20,27,33,44,48,88,121, 133. 



Admiral, Red, see Vanessa Ata- 

 lanta. 



Adolescentes (Blues), 19, 23, 26, 

 30, 48, 184, 188, 189, 200, 202, 

 204, 250, 254, 265, 302. 



Aegerians, 215. 



Aestival series in Brenthis, 144. 



Affinities of butterflies, 246. 



Agassiz, L., 52, 238. 



Aglais Milberti (Nettle Tortoise- 

 shell), 99, 137, 138, 152, 299, 

 307. 



Aglais urticae (Small Tortoise- 

 shell), 152, 299. 



Air reservoir, see Reservoir. 



Air-tabes, 81. 



Albinism, 180, 183. 



Allen, J. A., 210. 



Alpine butterflies, 269 ; of im- 

 pure tints, 161. 



Alternate dimorphism, 164. 



Alternation of habits, 133. 



Amblyscirtes vialis (Roadside 

 Skipper), 255, 305, 310. 



American Copper, see Heodes 

 Hypophlaeas. 



American and European butter- 

 flies compared, 151, 261. 



Anaea Andria (Goat-weed but- 



terfly), 14, 23, 103, 111, 185, 

 186, 298, 307. 



Ancient type of butterfly, 238. 



Ancyloxypha Numitor (Wee 

 Skipper), 190, 305, 310. 



Androconia, 199. 



Angle- wings, see Praefecti. 



Antennae, 38, 55, 82. 



Anthomaster Leonard us (Leon- 

 ard's Hesperid), 124, 306, 

 310. 



Antigeny, 180, 236 ; partial, 

 180 ; melanic, 180 ; atbinic, 

 183 ; complete colorational, 

 184 ; structural, 192. 



Aortal chamber, 82, 92. 



Apatura, 298. 



Apaturidae, 298. 



Appendages of tibiae, 65, 252 ; 

 of tarsi, 66 ; of abdomen, 74 ; 

 of tongue, 255. 



Archaic butterfly ; its transfor- 

 mations, 232. 



Architectural forms in eggs, 6. 



Archontes (Sovereigns), 298. 



Argonautae, 298. 



Argynnis Aphrodite (Silver- 

 spot Fritillary), 125. 300, 308. 



Aro-ynnis Atlantis (Mountain 

 Silver-spot), 150, 204. 300, 308. 



Argynnis Cybele (Great Span- 

 gled Fritillary), 195, 300, 308. 



Argynnites, 300. 



Astyci (Smaller Skippers), 189, 

 195, 246, 264, 305. 



