782 Pomona College Journ.\l of Entomology 



these measurements it will he seen that I and II are uearlj' equal, III is twieo 

 as long as IV and nearly twice as long as V, IV and V are nearly equal, 

 though the apieal article is a little the hmger of the two. The sensoria are 

 large and oval to ohlong in shape. There are from three to four on article 

 III, one on article IV, one large one and several smaller ones on article V in 

 the process. The unguis or spur occui)ies about one-fifth of the last article 

 and is tipped with several (usually four) rather stout hairs. Roafnnn — 

 Reaches nearly to the base of the third eoxa>, light green or yellow with two 

 marginid l)lack spots nearly at the tip and a ])lack tip. Prothora.c — ilueh 

 longer than the head, but not as long as wide, widens gradually from the head 

 to the base though the sides are nearly parallel, amber green with lighter 

 green base and apex dusky; ventral surface dusky green, but lighter than the 

 dorsum, covered with few rather long fine tubereulate hairs. Mcsothora.r — 

 Wider than the prothorax, dark brown or nearly black, muscle lobes slightly 

 pruinose, sides dull green ; ventral surface brown excepting the eox;v, which 

 are green. Metathorax — Narrower than the mesathorax, very short, muscle 

 lobes black, pruinose, remainder dull green; ventral surface dull green. 

 Abdomen — Oblong and evenly rounded, smooth, deep rich green (emerald), 

 covered with small dark-red or dusky spots which are arranged in somewhat 

 irregular transverse rows ; from each of these spots arises a small tubereulate 

 hair. Cleared specimens do not show these spots very well. Ventral surface 

 of the al)domen dull green, distinctly segmented, may be slightly pruinose; 

 anal and genital plates dusky ; rather large tubereulate hairs on each margin 

 near the posterior end and many long hairs on the anal plate. Cornicles — 

 (Figure 248, 3, 4). Short, truncate, slightly wider at the bases and extending 

 but a short distance above the body surface. When looking down upon the 

 cornicle there appears a dark semi-circle in the center which suggests that 

 one side of the cornicle is cut down nearly even with the body, but a lateral 

 view of it does not show this to he the case. They are usually eoncolorous 

 with the abdomen, but may be slightly amber or jiinkish, or even slightly 

 dusky. Legs — Hairy, lengths very uneven, first pair short and stout, second 

 pair of medium length and stoutness, third pair very long and slender. These 

 are used to clasp around the pine needles. The coxa- are green, femora amber 

 with front margin darker, tabise amber with dusky tips, tarsi (Figure 248, 5) 

 dark. Article I nearly half as long as the second; lengths, I, 1 mm.; II, 1.5 

 mm. Wings — Long and narrow, hyaline, subhyaline or dusky. Primary — 

 Length 3 mm., width 0.95 mm. ; costal vein well defined and wide to the 

 stigma, though it is less than half as wide as the subcostal, basal half green, 

 remainder dusky, subcostal wide, basal half green, remainder dusky, the 

 color emerging from a light green at the base to the dark brown or dusky 

 color of the stigma; stigma long and narrow, strongly angulate, opposite 

 sides nearly parallel, sharp angle at the base of the stigmal vein, and at 

 the apical end, dusky, almost black, length 1 mm., width 0.15 mm.; 

 stigmal vein well defined and dark, arises from near the apical end of 

 the stigma, slightly curved upwards, but oft-times straiglit, nearly parallel 



