Pomona College Jouhnal of Entomoloov 739 



pointed and rounded tulxreles, tliose near llie middle arc rounded (Figure 236, 7) 

 while those near tlie base and the ]>yju;idiuni or posterior end are more or less 

 pointed as in many of tlie s|)ecies of genus Aphis. In no other cose hove I ever 

 seen these semi-globular tubercles on either the thorax or the obdouien ; there is 

 also a row of lateral marginal dark spots on each side near the bose, i>r slightly 

 behind the base, of each tubercle. Anal plate is rounded, hairy and dork. 

 Ventral surface of the abdomen is same as the dorsal. Corniclet — Wanting. 

 Leg! — Rather long and very hairy, hind legs much longer than the rest; coxw 

 amber, covered with powder. Femora, bases yellow with remainder amber brown, 

 tibia' dark amber brown, tarsi (Figure •■236, 3) dark amlwr brown, first article 

 very short, ventral surface as long as the width. /rin^M-llather shorter and 

 wider than common, hyaline or dusky sub-hyaline. Primary — Length * mm., 

 width 1.7 nun. Costal wide to the stigma, brown; subcostal wider than costal 

 with vein area in middle distinct, brown; stigma short, oblong, nearlv four times 

 as long as wide, widest at base of stigma which is near the middle, rounds off to 

 a blunt point near the apex, wing margin contracted at the apex of the stigma, 

 dusky brown, length 0.85 mm., width 0.25 mm.; venation normal and fairly con- 

 stant considering that this is a subterranean form; stignial vein arising from the 

 middle of the stigma sharply curved, downward and upward bend throughout 

 the first half and nearly straight througiiout the apical half, although there is a 

 slight curve upwardly, brown, reaches the wing margin beyond half the distance 

 from the stigma to the apex of the wing. First discoidal arises inside the middle 

 half of the subcostal and is nearly straight, ba.se connected to the sulxrostal by a 

 dark or dusky area or an extension of the subcostal area, brown, sometimes curved 

 slightly outwardly with the convex surface towards the body. Second discoidal 

 obsolete at the base, straight, ajjcx meets the wing margin midway between the 

 apices of the first and third di.scoidals, brown, seldom even slightly curved. Third 

 discoidal sometimes slightly variable, base obsolete, the third vein ])roj)er con- 

 tinuing to the wing margin in a direction nearly j)arallel to the second discoidal, 

 though the aj>ex gradually tapers towards the tip of the wing, in one instance this 

 tip was forked thus making three forks in all (this is the only instance where 

 this vein has been found forked), normally twice-forked, the first branch arising 

 about one-third the distance from the base to the apex, this branch extends in 

 almost a straight line towards the apex and docs not branch until near the tip 

 — about two-thirds its distance from the first fork, brown. A'<Ton</<irv -Length 

 i.C) mm., width 0." nun., subcost;il vein distinct and with two downward curves, 

 one at the base of er.eii of the two discoidals. and with two upward curves, one 

 Ix-tween the discoidals, and one under the booklets, basal half is bordered by a 

 rather wide brow i area not un'ike tlmt of the suln'ostal in the primary wings; 

 discoidals are obsolete at the has-' and run parallel; first discoidal arises just 

 within the basal half of the subcostal, and the second discoidal just outside the 

 basal half of the subcostal vein; all veins brown. Style — Short rounded, con- 

 eolorous with the bodv, hairv. 



