35 
grandiflora, M. glauca, Tlex opaca; Viburnum nudum and Vaccinium 
spp. Adults have been bred out by the writer. Pupa-case described 
from numerous examples; adult 9 from two specimens. Types in Div. 
Ent. collection. 
32. Aleurodes pyrole Gillette and Baker. 
Prelim. Rep. Hemip. Colo., p. 125 (Colo. Agrl. Exp. Sta., Bul. 31, Tech. Ser.). 
On Pyrola rotundifolia, Four Mile Hill, 8 miles south of Steamboat Springs, 
Colo. 
33. Aleurodes quercus-aquatice n. sp. (Plate IV, figures 41-44.) 
Pupa-case.—Size about 0.95 by 0.81 mm.; shape very broadly sub- 
ovate, broadest about the middle. On the margin of case, on each 
side, in the cephalo-lateral region, there is an indenture, and a thick- 
ened and darker colored area on the marginal wax tubes. Cephalad 
from this rounded indenture the case is considerably narrower. Color 
under hand lens, shining black; under microscope by transmitted light, 
the color is brown, with the sutures dark brown. Pupa-case very 
flat, scarcely at all convex. There is a lateral continuous fringe 
all around somewhat longer than one-half the width of case. This 
fringe is applied closely to leaf, and is semi-gelatinous in appearance, 
the rods more or less indistinct basally, and frequently appearing as a 
structureless semi-transparent rim. From the indentures on the 
cephalo-lateral margin, on each side, and from the caudal end of case, 
pencils of white wax are exuded out into the semi-gelatinous fringe, 
and by contrast are somewhat conspicuous. On the dorsum, there 
may be a light and fragmentary exudation of wax along the body seg- 
ments, but this is trequently absent. Margin of case, distinctly cren- 
ulated, and there are two series of wax tubes all around on the 
margin; these are quite close together, the dorsal series being almost 
superimposed. The somewhat transparent lines between the dorsal 
series of wax tubes, extend mesad with varying distinctness to a very 
faint line all around, morphologically equal to the inner margin of 
rim. Light-colored lines may extend mesad from this line, laterally, 
to the body segments, but hardly continuous with the lines between 
wax tubes. Dorsum with very small black dots, occurring in a broad 
and loose band on each side of dorsum, the bands of each side termi- 
nating cephalad at the transparent eye spots, and coalescing caudad at 
the vasiform orifice. Along the sutures of body segments narrow 
lines of these dots occur, usually on both sides of the suture. 
Centrally, the body segments are quite distinct; the third thoracic 
seement bends cephalad on each side to near the thickened areas on 
the marginal indentures of case. On the dorsum, near the outer limit 
of the abdominal segments, is a row on each side of very small trans- 
parent spots. There is a pair of small sete just cephalad of vasi- 
form orifice, and a pair just within caudal margin of case, a seta on 
each side of the thickened marginal patch of tubes, from which orig- 
