42 
42. Aleurodes vittata n.sp. (Plate V, figures 56-58.) 
ligg.—size 0.25 by 0.09 mm.; slightly curved; color, pale yellow, 
unmarked. Stalk very short. a 
Larva.—Size 0.52 by 0.33 mm.; shape subelliptical, somewhat 
narrowed caudad. Color whitish, very flat, and closely applied to 
leaf. No lateral fringe; margin finely crenulated, but without distinct 
marginal rim. Dorsum void of waxy exudation. From caudal end 
projects a pair of moderately stout tubercled sete. Vasiform orifice 
practically as in pupa-case. 
Pupa-case.—Size about 0.75 by 0.52 mm.; shape elliptical. Color 
dark brown, with the margin of dorsum all around, and a broad stripe 
down dorsi-meson, whitish. The coloration is usually deepest just 
laterad of the central dorsal stripe, and gradually fading toward the 
margin. 
Body segments quite distinct, the thoracic more so than abdominal, 
appearing as white lines extending across the dorsum. 
There is no marginal fringe, although the lateral wax tubes are well 
developed. Just within the margin, all around on the dorsum, is a 
closely set series of short papille, or pores, from which is produced a 
fringe of rather short, slightly curved, glassy waxen rods. These are 
longest on cephalic and caudal margins. Along lateral margin, at 
more or less regular intervals, longer and stouter wax rods are pro- 
duced. Just within this submarginal series of papille is an irregular 
row all around of small transparent spots, and these may also occur 
somewhat promiscuously over the dorsum, but are most numerous 
over the central dorsal portion. Around the sub-dorsal area the case 
ismarked with more or less reticulated lines, which extend out plainly 
to the sub-marginal series of pores. Pupa-case applied quite closely 
to leaf, and there seems to be no vertical fringe. On the margin, at 
caudal end of case, there is, on each side of the furrow from the vasi- 
form orifice, a moderately stout seta, and the usual caudo-lateral pair 
is present on margin’ of case. Vasiform orifice subovate, about four- 
fifths as wide as long; the inner lateral margin much corrugated. 
Operculum subelliptical, scarcely one-half the length of orifice. Lin- 
eula about three-fourths length of orifice, subspatulate, the distal part 
with three pairs of lateral lobes and a terminal lobe. Two setz arise 
from caudal end of lingula, and project caudad to margin of orifice. 
Both operculum and lingula minutely setose distally. 
Adults.—Unknown. 
This species occurs on leaves of chaparral, and has been received 
by the Division of Entomology at Washington, D. C., from W. KE. 
Collins, Ontario, Cal.) July, 1894; A. J. Cook, Claremont, Cal., August 
14, 1894; and from S. A. Pease, Pomona, Cal., August 30, 1894. Div. 
Ent. No. 6311. Described from three eggs, three larvae, and numerous 
pupa-cases. 
