PLATE 10 



Fig. 187. Aphis euonomi Fabr., wing. 



Fig. 188. Aphis salicicola Thomas, wing. 



Fig. 189. Aphis medicaginis Koch, third and fourth antennal segments. 



Fig. 190. Aphis euonomi Fabr. (I), third and fourth antennal segments. 



Fig. 191. Aphis avenae Fabr., wing. 



Fig. 192. Aphis gossypii Glover, cornicle. 



Fig. 193. Aphis gossypii Glover, cauda. 



Fig. 194. Aphis sambucifoliae Fitch, cauda. 



Fig. 195. Aphis sambucifoliae Fitch, cornicle. 



Fig. 196. Myzaphis abietina (Walker), third and fourth antennal segments. 



Fig. 197. Myzaphis abietina (Walker), cornicle. 



Fig. 198. Aphis albipes Oest., cornicle. 



Fig. 199. Aphis albipes Oest., cauda. 



Fig. 200. Aphis albipes Oest., third and fourth antennal segments. 



Fig. 201. Aphis avenae Fabr., cornicle. 



Fig. 202. Aphis avenae Fabr., third and fourth antennal segments. 



Fig. 203. Aphis brassicae Linn., cornicle. 



Fig. 204. Aphis brassicae Linn., third and fourth antennal segments. 



Fig. 205. Aphis euonomi Fabr., cornicle. 



Fig. 206. Aphis euonomi Fabr., cornicle. 



Fig. 207. Aphis euonomi Fabr., third and fourth antennal segments. 



Fig. 208. Aphis cardui Linn., third and fourth antennal segments. 



Fig. 209. Aphis cardui Linn., cornicle. 



Fig. 210. Aphis ceanothi Clarke, cornicle. 



Fig. 211. Aphis ceanothi Clarke, third and fourth antennal segments. 



Fig. 212. Aphis coolcii Essig, third and fourth antennal segments. 



Fig. 213. Aphis coolcii Essig, cauda and anal plate. 



Fig. 214. Aphis coolcii Essig, cornicle. 



Fig. 215. Aphis gossypii Glover, third and fourth antennal segments. 



Fig. 216. Aphis maidis Fitch, cauda. 



Fig. 217. Aphis maidis Fitch, antenna. 



Fig. 218. Aphis maidis Fitch, cornicle. 



Fig. 219. Aphis middletonii Thomas, cornicle. 



Fig. 220. Aphis middletonii Thomas, third and fourth antennal segments. 



Fig. 221. Aphis nerii Fonsc., cornicle. 



Fig. 222. Aphis nerii Fonsc., third and fourth antennal segments. 



Fig. 223. Aphis persicae-niger Smith, cornicle. 



Fig. 224. Aphis persicae-niger Smith, third and fourth antennal segments. 



[198] 



