Abdomen, 4 Acadian hair-streak, 248 Admiral, Red, 160 Aestivation, 21-22 _Agapetidae_, 214-229 _Aglais milberti_, 182 _Ajax_, 77 _Amblyscirtes vialis_, 280 American copper, 255 American tortoise-shell, 182 Anatomy of butterflies, 3-5 _Ancyloxipha numitor_, 281 Androconia, 15 Angle-wings, Synopsis of the, 190 Angle-wings, Tribe of the, 150-192 _Anoea andria_, 208 _Anosia berenice_, 235 _Anosia plexippus_, 233 Antennae, 3-4 _Anthocaris genutia_, 97 _Anthocaris olympia_, 97 Antiopa, 112-115, 171-182 Ants and caterpillar, 261 Aphids, 261 Apparatus for collectors, 51-54 _Araulis vanillae_, 115 Arctic satyr, 225 _Argynnis aphrodite_, 125 _Argynnis atlantis_, 126 _Argynnis cybele_, 122 _Argynnis diana_, 118 _Argynnis idalia_, 120 _Argynnis montinus_, 127 _Atlides halesus_, 243 Baltimore checker-spot, 135 Banded hair-streak, 246 Banded purple, 202 _Basilarchia archippus_, 195-202 _Basilarchia arthemis_, 202 _Basilarchia astyanax_, 204 _Basilarchia floridensis_, 206 Black-bordered yellow, 105 Black swallowtail, 59 Blue-eyed grayling, 215 Blue swallowtail, 65 Blues, Synopsis of the, 265 Blues, Tribe of the, 258-265 _Brenthis bellona_, 128 _Brenthis myrina_, 131 Brimstone butterfly, 98 Bronze copper, 257 Brown, Eyed, 221 Brown, Gemmed, 227 Buckeye, 188 Butterflies, Aestivation of, 21-22 Butterflies, Anatomy of, 3-5 Butterflies and Moths, Difference between, 13-14 Butterflies, Classifications of, 55 Butterflies, Collecting, 49-54 Butterflies, Coloration of, 24-35 Butterflies, feigning death, 22-23 Butterflies, General characteristics of 3-54 Butterflies, Hibernation of, 17-21 Butterflies, Migrations of, 16-17 Butterflies, Parasites of, 40-43 Butterflies, Photographing, 47-48 Butterflies, Rearing of, 43-47 Butterflies, Scents of, 15