EASTERN UNITED STATES. 57 



186. Nis-o-ni'a-des Ju-ve-na'lis, Fabricius. 



187. Nis-o-ni'a-des Pe-tro'ni-us, Lintner. 



188. Nis-o-ni'a-des Nas'vi-us, Lintner. 



189. Phol-i-so'ra Ca-tul'lus, Fabricius. 



190. Phol-i-s</ra Hay-hurst'i-i, Edwards. 



191. Eu-da'mus Pyl'a-des, Scudder. 



192. Eu-da'mus Ba-thyl'lus, Smith and Abbott. 



193. Eu-da'mus Lyc'i-das, Smith and Abbott. 



194. Eu-da'mus Cel'lus, Boisduval and Leconte. 



195. Eu-da'mus Zes'tos, Hiibner. 



196. Eu-da'mus Tit'y-rus, Fabricius. 



197. Eu-da'mus Pro'te-us, Linnaeus. 



198. E-ryc/i-des Bat-a-ba-no', Lefebvre. 



199. E-ry9'i-des A-myn'tas, Fabricius. 



200. Meg-a-thy'mus Yuc'cse, Boisduval and Leconte. 



201. Meg-a-thy'mus Cof-a-qui', Strecker. 



ANALYTICAL KEY FOR THE DETERMINATION OF 

 THE BUTTERFLIES OF THE EASTERN UNITED 

 STATES. 



1. 



Antennas filiform, terminating in a knob or club, 



BUTTERFLIES, 2 

 Antennas not knobbed, MOTHS. 



2. 

 Having six feet adapted for walking, 3 



Having four feet adapted for walking, the front pair aborted, 35 



3. 

 Body rather slender, width of thorax from one-eighth to one- 



sixtb the length of hind margin of fore wings, 4 



Body robust, width of thorax from one-fourth to one-half the 



length of hind margin of fore wings, Hesperidae, 120 



4. 



General or ground colors black, white, or yellow ; size generally 



from medium to large, Papilionidae, 5 



Colors blue, coppery, or blackish ; size generally small, 



Lycaenidae, 89 



