554 Pomona College Journal of Entomology 



spots, eacli of which bears one or two hairs on lateral dorsum, (these do not show 

 in fresli specimens, because the color is so dark), there are usually seven spots 

 in each row. Legs — Stout, hairy, black througliout. JVings — Dusky throughout. 

 Primary — Length 4.51 mm., greatest width 1.5 t mm.; costal vein well developed, 

 black, quite broad at base; subcostal wide, black; stigma nearly four times as long 

 as broad, oposite sides nearly equal and parallel, black, darker along lower border, 

 length 1.1 mm., width 0.3 mm.; stigmal vein arising two-thirds distance from base 

 of stigma to apex, sharply curved throughout basal third with remaining apical 

 third straight, brown; third discoidal straight, obsolete at base, arising quite 

 distant from second discoidal; second discoidal arising near base of first discoidal 

 (distant 0.19 mm.), first half straight, latter half curves inwardly as it approaches 

 wing margin; first discoidal curves slightly outwardly, both veins brown. Sec- 

 ondary — Length 3.2 mm., width 0.96 mm.; subcostal vein deeply curved at the 

 junction of the discoidals, so sharp as to make it appear that the second discoidal 

 was a continuation of it, brown ; discoidals arise from a common short or narrow 

 brown spot, bases may be close or approximate as shown in drawing (they may 

 even arise from the same point) ; first discoidal curved outwardly, second discoidal 

 nearly straiglit. Style — Obsolete, rounded, hairy. 



LARVAE OF THE WINGED VIVIPAROUS FEMALE (Figure 186 C) 



There were to be found only a very few of the apterous stem-mothers, but 

 these few were giving rise to great colonies of the winged forms. The very young 

 are reddish brown to very light yellow in color, naked. The legs are large — 

 nearly as large as in the mature forms. Rostrum reaching far beyond the end 

 of the abdomen. At the base, and in front of the antennae, are two anterior lobes 

 which are very noticeable in the mounted specimens. In the very yoimg the 

 antennas consist of four articles as follows: I very large but poorly defined and 

 scarcely annulated, short; II twice at long at I; III as long as I, II and IV 

 together; IV half as long as III. The drawing shows a more advanced stage. 



NYMPHS OF THE WINGED VIVIPAROUS FEMALE (Figure 185) 



By far the greatest numbers of individuals present are the nymphs, which 

 with their cottony coat appear to be the apterous forms. As shown in the photo- 

 graph, they are entirely, or nearly, covered with long white flocculence. This 

 flocculence is arranged in rows, each row having a large number of individual 

 patches. In the younger stages these patches show the flocculence to be arranged 

 so as to form whorls. In the advanced stages the appearance of these whorls is 

 destroyed. The color of the bodies is very varied and may be pink, rose, amber, 

 yellow, or slate. In every case the color is constant for each individual. Antennae 

 — Normally Vl-artieled, which are colored as follows: I and II color of body, 

 III and IV color of body with dusky tips, V and VI dusky throughout. Rostrum — 

 Reaching to the third coxte, apical one-half dusky. Legs — Dusky, articulations 

 and tarsi darker. Cauda — Dark. 



APTEROUS VIVIPAROUS FEMALE (Figure 186 B) 



Length of body 3.75 mm., greatest width of abdomen 3.6 mm., very globose 

 in shape. 



