PLATE 11 



Aphis pomi De Geer, canda. 



Aphis pomi De Geer, antennae. 



Aphis pomi De Geer, cornicle. 



Aphis prunorum Dobr., cauda. 



Aphis prunorum Dobr., third and fourth antennal segments. 



Aphis prunorum Dobr., cornicle. 



Aphis pscudobrassicac Davis, third and fourth antennal segments. 



Aphis ramona Swain, antenna. 



Aphis ramona Swain, front of head. 



Aphis ramona Swain, cauda and anal plate. 



Aphis ramona Swain, cornicle. 



Aphis euonomi Fabr., cornicle. 



Aphis euonomi Fabr., third and fourth antennal segments. 



Aphis salicicola Thomas, cornicle. 



Aphis salicicola Thomas, third and fourth antennal segments. 



Aphis sambucifoliae Fitch, third and fourth antennal segments. 



Aphis senecio Swain, cauda. 



Aphis senecio Swain, cornicle. 



Aphis senecio Swain, front of head. 



Aphi-s senecio Swain, third and fourth antennal segments. 



Aphis senecio Swain, fifth, sixth antennal segments, and spur. 



Aphis setarae Thomas, cornicle. 



Aphis setarae Thomas, third and fourth antennal segments. 



Aphis malifoliae Fitch, cornicle. 



Aphis malifoliae Fitch, fourth antennal segment. 



Liosomaphis berberidis (Kalt.), front of head. 



Liosomaphis berberidis (Kalt.), third and fourth antennal seg- 



Siphocoryne capreae (Fabr.), third and fourth antennal segments. 

 Siphocoryne capreae (Fabr.), fifth and sixth antennal segments 



Siphocoryne capreae (Fabr.), cauda and supra-caudal spine of alate 



Fig. 225. 



Fig. 226. 



Fig. 227. 



Fig. 228. 



Fig. 229. 



Fig. 230. 



Fig. 231. 



Fig. ( 232. 



Fig. '233. 



Fig. 234. 



Fig. 235. 



Fig. 236. 



Fig. 237. 



Fig. 238. 



Fig. 239. 



Fig. 240. 



Fig. 241. 



Fig. 242. 



Fig. 243. 



Fig. 244. 



Fig. 245. 



Fig. 246. 



Fig. 247. 



Fig. 248. 



Fig. 250. 



Fig. 251. 



Fig. 252. 

 ments. 



Fig. 253. 



Fig. 254. 

 and spur. 



Fig. 255. 

 females. 



Fig. 256. Siphocoryne capreae (Fabr.), cauda and supra-caudal spine of 

 apterous females. 



Fig. 257. Siphocoryne pastinacae (Linn.), third and fourth antennal seg- 

 ments. 



Fig. 258. Siphocoryne pastinacae (Linn.), fifth and sixth antennal segments 

 and spur. 



Fig. 259. Siphocoryne pastinacae (Linn.), cauda of apterous female. 



Fig. 260. Siphocoryne pastinacae (Linn.), cauda of alate female. 



Fig. 261. Siphocoryne pastinacae (Linn.), cornicle. 



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