Pomona College Journal of Entomology 



593 



mm.; V, 0.67 iniu.; VI, 1.0 mm. (spur 0.7() iiiiii.); total .!..■;.'! inni. Tlit-rf arc- from 

 fourteen to fifteen large circular .sensoria in a row on article III and usual number 

 on V and VI. Rostrum — Reaches nearly to the second coxa;, dark at tip only; 

 remainder, color of body. Prothorax — Much wider than long, light green in color, 

 without lateral tubercles. Meso- and Mctathorax — Dorsum light green with the 

 muscle lobes pinkish or amber, ventral side darker on middle. Abdomen — Long 

 and regularly rounded, light shiny green with a darker green longitudinal band 



B / 



) 



Figure 193. Macrosiphum citrifolii 

 on the middle of the dorsum, all green ventrally, may, or may not, have red spots 

 on dorsum. Cornicles — (Figure 191 g). Cylindrical, long, restricted before apex, 

 with mosaic markings in the restricted area, nearly twice as long as style, color of 

 body with the apical two-thirds dusky, length 0.7 mm. Legs — Long and slender, 

 normally haired, coxae color of body, femora green with apical half dusky, tibia? 

 dusky throughout, tarsi dark. Wings — Hyaline. Primary — Length 1.2 mm., 

 width 1.45 mm.; veins ending in dusky spot at wing margin; costal well defined, 

 but narrow, light yellowish green; subcostal wide, light yellowisni green; 



