588 Pomona College Journal of Entomology 



circular seiisoria scattered over tiie surface; IV (Fig. 191, 1, 2, 3, I) with from 

 one to three large circular sensoria, which nia_y be scattered at the base or near 

 the apex of the article, but they are usually on the basal half; V with from two 

 to three large circular sensoria (Fig. 191, 5, 6) and in some instances one small 

 one as shown in drawing. There is usually but one sensorium. Tiie small group in 

 the nail-like jirocess of article VI is shown in Fig. 1<)1, 7. Rostrum — Reaching to 

 second co.xa;, witli dark base and tip. Prothorax — More tiian twice as wide as 

 long; dark, with very small lateral tubercles. Meso- and Metathorax — Wide, black, 

 with prominent muscle lobes. Abdomen — Well rounded, dull green or brownish- 

 green, bearing a transverse row of quite long white flocculence on each segment 

 (not shown in the cut), which may nearly cover the entire body. Anal plate 

 (Fig. 191, H) dark, hairy, three small marginal tubercles on each side. Cornicles 

 — (Fig. 191, F). Short, somewhat cylindrical, with wide mouth, base little wider 

 than apex, narrowest just before the mouth, imbricated, black, longer than the 

 style, length 0.1 6 mm. Legs — Moderately long and hairy, black or dark brown 

 throughout. Wings — Large, hyaline. Primary — Length 3.3 mm., width 1.25 mm. 

 Costal vein stout, dark brown ; subcostal wide, brown ; stigma long and narrow, 

 widest at the base of the stigmal vein, from whence it narrows to a point at the 

 wing margin, the opposite sides are nearly parallel, length 0.95 mm., width 0.16 

 mm., amber brown ; stigmal vein arising three-fifths the distance from the base 

 of the stigma, strongly curved throughout first half and slightly curved throughout 

 the apical half, rather long, brown or amber ; first and second diseoidals straight ; 

 third discoidal twice branched, first branch arising one-third the distance from the 

 base to the tip, short, parallel with the apical one-third of the stigmal vein, brown 

 arising very near to the tip of the first branch (three-fourths the distance from the 

 base to the tip), short, parallel with the apical one-third of the stigmal vein, brown 

 or amber. Secondary — Length 1 .8 mm., width 0.65 mm. ; subcostal vein curved 

 downwardly just bej'ond the base of the second discoidal and then curves down- 

 wardly to original level to tip of the wing; first discoidal arising just beyond 

 one-fourth the distance from the base to the tip of the subcostal, slightly curved 

 outwardly, does not touch the subcostal vein or the wing margin ; second discoidal 

 arising from the middle of the subcostal and nearly straight, does not touch sub- 

 costal vein, but extends to wing margin; all veins brown. Style — (Fig. H and I). 

 Bluntly ensiform, or conical, beset with stiff hairs, rough, dark, curving upward, 

 length 0.12 mm. 



APTEROUS VIVIPAROUS FEMALE (Figure 191 B) 

 Length of body not including style 2.2 mm., width of abdomen 1.3 mm. 

 A larger and more robust form than the winged female. 



Prevailing color — Very dark green or brown, covered with transverse rows 

 of rather long white flocculence on the body, giving it a grayish appearance. Body 

 gradually widening from head to the middle of the abdomen and then rounds off 

 to the style, robust. Head — With slight frontal tubercles, much wider than long, 

 dull green or brown. Eyes — Bed. Antennae (Fig , E) — On very slight 



