Pomona College Journal op Entomology 



535 



femora light; tibiae liglit with duslty tips; coxa? of tliird pair sliglitly dusky; femora 

 light with apical one-third dark; tibiae light with tips dark; tarsi dark. Wings—' 

 Hyaline. Primary — Length 3.2 mm., width 1.2 mm., venation normal, insertions 

 and veins greenish-yellow; stigma dusky, long and narrow (length 0.85 mm., 

 width 0.18 mm.) Secondary — Normal. Style — (Figure 17-lA, B, C). Triangular 

 or conical from dorsal view, sickle-shaped from lateral view, not half as long as 

 the cornicles, dark. 



APTEROUS VIVIPAROUS FEMALE (Figure 175) 



Length of body 2.3 mm., greatest width of abdomen 1.2 mm., body well 

 rounded posteriorly. 



Prevailing coloi — Shiny light green, may or may not have red spots on 

 dorsum. Head — Yellowish. Aniennae — (Figure 175 B). Half as long as the body, 

 articles I, H and HI yellowisli green, IV with dark apex only, V and VI with 

 bases and apices dark, middle yellow, lengths of articles: I, 0.09 mm.; II, 0.05 

 mm.; Ill, 0.33 mm.; IV, 0.12 mm.; V, 0.1 mm.; VI, 0.4 mm. (spur 0.3 mm.), 

 total 1.09 mm. Rostrum — Reaching to third coxae, light green with dusky base 

 and tip. Abdomen — Rather bluntly rounded posteriorly, dorsal posterior tubercle 

 on penultimate segment large and prominent with two apical spines (Figure 175 D, 

 E, F.) Cornicles (Figure 175 A). Clavate, yellowish-green with only the extreme 



Figure 174. Hyadaphis pastinacae 

 A, ventral view of pygidium; B. dorsal view of pygidium; C, lateral view of 

 pygidium; d, antenna; E and F, tips of tibiae andithe tarsi; G and H, cornicles. 



