Fig. <.H\. The wings of Aphididae: 1, Front wing of Lachnus longlstigma. 2, Schizo- 

 neura lanigeru. :(, Pemphigus vagabundus. 4, Oolopha ulniicola. 5, Cliernie.s pini- 

 folil. <;, Phylloxera punctata. 7, Phylloxera quereus. s, Phylloxera depressa. 9, 

 Hind wing of Melano.xanthu.s sallcti. 10, Ohaitophorus popullcola. 11. Hanianiel- 

 Istis papyracease. 12, Tetraneura granilnis, i;5, Phylloxera vastatrix: c, Costa; 

 sc, Subeosta; R. Radius; Rs Radial sector; M tl-2), media; 1x2; M {;^-4) media ^-4; 

 Cu, Cubitus; 1st A, First Anal; 2nd A, Second Anal. 



