Pomona College Jocrnai. ok F.ntomoi.oov 



5''1 



Prevailing color — Black or dark olive grcj-n. //cm/- -Well rounded in the 

 front, nearly as long as wide, lilaek. Eyes — Dark red or brown. Antrnnar (Fig. 

 • 92, f) — Not arising from frontal tubercles, hut direct frinn the head, much 

 shortt'r than the body- — not reaching to the bases of the cornicles; articles I and 

 IF dark. FII and I\' ligiit i.nioii yellow. \' light 1. iiioii y.llcw with a dark lip. \'I 



«szscE^g^ 



Figure 192. Aphis gossypii 



dusky throughout; lengths of the .-irlieles: I. (l.o.s mm., 1 1, (l.i)(i nnn. ; 1 1 F. ii.;<'i mm. ; 

 IV, O.irt mm.; V, 0.21 mm.; VI, 0..<.') mm. (spur O.'i.T mm.); total 1 .',27 mm.; all 

 articles sparsely haired; sensoria on articles X and VI normal, lioitrum — Reach- 

 ing just beyond the third coxa-, lemon yellow with dark base and tip. Prolhora-z — 

 V'ery short, with distinct lateral tubercle. Meto-and niplalhornx—Snrrovr trans- 

 versely. Ahdomcn — ,*^mooth. dark green with irregular lighter markings on tlic 

 dorsum and with small marginal tubercles on the sides, ventral surface dull green. 

 Anal plate (Fig. , d .dorsal, and e, ventral) — Dusky, hairy. Cornicles (Fig. 

 192, i) — Cylindricjil. widest at base and gradually tapering to tip, imbricated, 

 black, length 0.'27 mm. I'l'g^ — Normal, eoxie dark, femora light yellow, tibia- 



