784 Pomona College JotmN.Uj op P]ntomology 



NYMPH of winged FEMALE (Fi^ire 247, B) 



General color and size of the adult winged female, with dark brown wing 

 pads and iiiorf doi'sal black spots and liairs, wbicli are arranged in regular 

 transverse rows. Pygidium dusky. 



apterous viviparous female (Figure 247, C) 



Length of body 2.4 iniu., width of alidoiuen 0.(15 mm. Hody long and 

 narrow, and in not a few tlie lioad and thorax are as wide as tlu' abdomen, the 

 body sides being nearly parallel. The drawing shows the typical shape. 

 Prevailing color — Liglit yellowi.sh-green with small red spots on the entire 

 dorsum. Head — Rounded, wider than long but not as short as in the winged 

 individuals, hair between the antenna? often capitate, yellow or light green 

 with several small red spots bearing hairs on tlie dorsum. Eyes — Nearly 

 globular, red. Antennae— {V\(^\re 248, 2). Reaching nearly to the middle 

 of the mesothorax, imbricated, slightly hairy, coloration same as in winged 

 forms, five-articles; length of articles: I, 0.06 mm.; II, 0.7 mm.; Ill, 0.2 mm.; 

 IV, 0.1 mm. ; V, 0.12 mm. : total 0.55 mm. ; their comparative lengths about the 

 same as the articles of the winged female. Large oval sensorium on article 

 IV and the usual sensoria in the process of V. Rostrum — Reaching beyond 

 the third coxae, light green with dark tip. Prothorax — Narrow, nearly as long 

 as broad, apex narrow^er than head, widening slightly towards the base, with 

 many small red spots, each bearing a single fine tulierculate hair, light yellow. 

 Mesothorax — Long and narrow, nearly as long as the width across the pos- 

 terior end, green with red spots and hairs on the dorsum. Metathora.r — 

 Extremely short, not one-third as long a.s the mesothorax and a little wider, 

 with a distinct transverse row of red spots on dorsum and several spots near 

 the anterior margin, green. Abdomen — Green, nearly cylindrical, dorsum 

 covered with transverse rows of small red spots, each bearing a fine tuber- 

 culate hair. Some of these spots are very irregular and differ greatly in size, 

 while all may be very poorly arranged in rows and appear scattered. La.st 

 abdominal segment and pygidium dusky, hairy. Ventral surface pale green 

 with two rows of five red spots each (Figure 248, 6) near the margins at the 

 union of the segments. Anal and genital plates dusky. Cornicles — (Figure 

 248, 7, 8). Practically the same as those of the winged females. Legs— 

 Lengths the same as in the winged individuals, hairy, amber yellow to amber 

 brown throughout ; coxa^ and bases of femora pale green ; tarsi amber brown. 

 Style — Obsolete. Pygidium — Dark, hairy. 



Hosts — First taken by the writer from cultivated Pine trees (Pinus 

 radiata Gord) Monterey Pines, which are growing on tlie Pomona College 

 Campus. The insects are not in colonies liut are scattered separately over the 

 entire trees. They are usually to be found most plentiful on the terminals of 

 the lu-anehes and feed upon the needles, along which tliey are a))le to move 

 very rapidly. In moving they clasp around tlu^ needle with all feet, but 

 particularly with the sliort front and the long hind legs. It is impossible to 



