Pomona College Journal of Entomology 737 



Legs — I,;irgcr, tin' first two pairs iirarly of tlic same size, the liiiul ])air 

 niucli larger, hairy. Tibia slightly H.ared at the extreme base. First .-irtiele of 

 the tarsi very small and scarcely longer on the under side tiian the widtii. 



.S7 )//(■- -Bro.-idly roundc<i, nearly senii-eireiil.-ir, hairy. 



Anal Plate — Rather large and well developed, nearly semi-circular in form. 



Wingn — Short and bro.id, with venation fairly constant. Hyaline or dusky 

 sub-li\;iline. Stigma short and bluntly pointed at a|)ex. Stigmal vein .arising 

 ne.ar the middle of tile stigma and deejjly curved throughout the first half. First 

 diseoid.il str.iight .and normal. Second discoid.al obsolete at base, straight. Third 

 diseoid.al normally twice-forked, obsolete at base, first fork near the base and 

 second fork near the apex of the wing. Secondary with two jjarallel discoidals. 



This genus is widely sejiarated from all other genera by its uni(iue com- 

 bination of distinct characters. It has the rostrum and legs of the genus Lachnus, 

 the wing venation of Chaitophorus and the body resembles somewh.at that of the 

 genus .Ipltis, though there are no cornicles. In considering the antennae alone 

 the insect might be jilaced in the tribe Chaifophoriiii, but a study of the indi- 

 vidual articles excludes it from Arctnphis which has the spur of the sixth seg- 

 ment above five times ,is long as the segment. In Chaitophonis the spur of the 

 sixth segment is about six times as long as the sixth segment and also longer 

 than article III. In Si/mdobiiifi the spur of the sixth segment is shorter than the 

 segment. In Thomasia the sjjur of the sixth segment is shorter th.in the segment. 

 From the description as given above it seems hardly worth while to make further 

 comi)arisons with the genera which it most resembles. FuIIawai/a ha.s not the 

 antenn* segmentation, stigma, or stigmal vein of Lachiius, nor the specific char- 

 acters of Aphis. Though a subterranean form it has neither the antennae nor the 

 win"; venation of any yet described. In consideration of these facts I have not 

 hesiiated to call it a new genus. With others this species was sent to W. !M. 

 Davidson of San Jose who writes as follows: "\o. 20 is certainly a peculiar 

 insect. I am very glad to have specimens of it. Very likely it is a new genus." 

 The genus is named in honor of Mr. Fullaway, who has worked extensively on the 

 Aphididae of Hawaii. 



FuUawaya saliciradicis n. sp. 

 (Willow-Root I.ouse) 



WINGED VIVIP.VROl'S FE.MALK ( FigUrC '2;?;) A) 



Length of body 3.2 mm., width of mesothorax l.I nun., width of the abdo- 

 men ].,'J.j mm., wing exjjansion 9 mm. A large and robust sjiecies. Bod if — 

 Smooth, covered with fine hair and pur\elent throughout. Prei'a'diug color — 

 Black and silvery gray which is due to .1 heavy coating of fine powdery white wax. 

 Some specimens are almost entirely destitute of any of this ))owder. Head — 

 Nearly twice .as wide as long, dull black, with very indistinct or no front.al 

 .mtenii.il tubercles, fine hair on the front. Ei/es — Dark red with distinct marginal 

 tub( rele. .lutentiae — (Figure 2.'i6, 8 and <)). On indistinct frontal tubercles, 

 half or a little longir than half as long as the body, reaching to the base of the 

 third abdominal segment; covered with long li.iir; color of segments: I and II 



