ALBERT F. SW'AIX 5 



Alate viviparous female. — Prevailing color light to apple green. Head, 

 thorax, and abdomen light green. Eyes red. Prothorax apple green. Abdo- 

 men light green with margins and a small area about the base of each cornicle 

 apple green. Beak light brown with tip dusky. Femora pale with apices 

 dusky, tibiae dusky, tarsi and tips of tibiae black. Cornicles and cauda light 

 green. Antennal joints I and II concolorous with head, HI light brown with 

 apical third darker, IV light brown with apical half darker, V and VI dark 

 brown to black. Fore wings with costal and subcostal veins greenish gray, 

 other veins light brown; costal cell hyaline; first discoidal vein broadlj' shaded 

 with dark brown; second discoidal with base and tip shaded; tips of all other 

 veins shaded, stigma hyaline with three borders (i. e., all except the outer) 

 shaded with brown. Hind wings normal. 



Antennal tubercles are small, slightly toothed on the inner side (fig. 2). 

 Fii-st antennal segment slightly gibbous on inner side (fig. 2). Antennae con- 

 siderably longer than the body. III Ijeing the longest segment, followed by 

 1\, which is about thi-ee-fourths as long, which in tui-n is followed by V, being 

 slightly more than one-half as long as III. The spur of VI is considerably 

 longer than the base, the two being about as long as IV. On V and VI are 

 the usual primary sensoria, and on VI the usual accessory sensoria. On III 

 (fig. 17) there are from four to seven secondary sensoria (usually four), which 

 are fairly large, cu'cular and an-anged in a single line along the basal one-third 

 to one-half of the segment. The beak is short, scarcely reaching to the second 

 coxae. Prothorax without lateral tubercles. The abdomen has about three 

 fairly large lateral tubercles located usually on segments two, three, and four. 

 In some specimens these are not discernible, while in others they are quite 

 prominent. Cornicles (fig. 29) short, scarcely longer than broad at the base, 

 and constricted in the middle. Cauda (fig. 33) slightly longer than cornicles, 

 placed on a more or less narrow base, and with a knobbed tip. Anal plate 

 (fig. 37) slightly more than half the length of the cauda, bilobed, the emargina- 

 tion being U-shaped. 



Measurements: Body length, 1.445-2.125 mm. (ave. 1.955 mm.): width of 

 thorax, .714r-.85 mm. (ave. .765 mm.): antennae total, 2.363-2.703 mm. (ave. 

 2.473 mm.); Ill, .824-.969 mm. (ave. .862 mm.); IV, .459-.578 mm. (ave. .522 

 mm.); V, .374-.493 mm. (ave. .466 mm.); VI base, .17-.221 mm. (ave. .185 mm.) ; 

 VI spur, .2o5-.34 mm. (.299 mm.): cornicles, .111-17 mm. (ave. .129 mm.): 

 cauda, .17 mm. : hind tarsus, .102-136 nmi. (ave. .119 mm.) : wing length, 2.533- 

 2.975 mm. (ave. 2.693 mm.); wing width, .799-1.105 mm. (ave. .977 mm.); 

 wing expansion, 5.814-6.426 mm. (ave. 6.12 mm,). 



TRANS. AM. ENT. SOC, XLIV. 



