96 
Winged specimen. —Antennae not on a tubercle, scarcely as long as 
the body, reaching about to the base of the honey-tubes; third and 
seventh joints about the same length: fourth a little shorter than the 
third and very slightly longer than the fifth; sixth about or slightly 
more than half the length length of the fifth; more or less 
corrugated throughout. Wings transparent, veins distinct; first 
and second discoidal veins nearly straight; third obsolete at the base; sec¬ 
ond fork not quite half the distance from the apex of the wing that it is 
from the third vein; fourth vein somewhat sharply curved near its base, 
but curving more gradually as it approaches the apex of the wing; 
stigma semi-opaque, long narrow and very acutely pointed at each end; 
the posterior angle, where the fourth vein arises, very obtuse. Honey- 
tubes of moderate length, reaching about to the tip of the abdomen, 
cylindrical. Tail distinct but very short, not more than one-fourth or 
one-third the length of the honey-tubes. Head and thorax dark; ab¬ 
domen pale brownish, posterior extremity black or blackish; wings 
clear, veins dark, the subcostal vein, which is very robust is brownish 
and rather paler than the others; tail black. The color of the honey- 
tubes was omitted at the time notes were taken from the fresh specimens 
but judging from mounted and alcoholic specimens before me, I presume 
they are dark, as they are in the wingless. Length of body .06 inch, to 
tip of the wings .12 inch. 
Pupa. —At the time the species was discovered quite a large pro¬ 
portion of those observed were pupae. These are oblong-oval in form, 
and otherwise similar in color, and appearance to the wingless specimens. 
Wingless specimens. —Ovoid in form, flattened above, with a depress¬ 
ed line near the sides forming a flattened somewhat alate margin; 
transversely wrinkled; more or less covered with a cottony substance; 
general color purplish brown. 
They impart a reddish stain to the alcohol in which they are im¬ 
mersed. 
Found on the leaves of the persimmon ( Diospyros virginiana)\ chiefly 
on the underside. Carbondale, Illinois, in June. 
Aphis viburni. Scop. (Fab.) The Snowball Aphis. 
This species is found according to Dr. Fitch on the fruit stems of 
the high cranberry ( Viburnum opulus var Americanum.) I find it 
on the twigs, especially the new growth and along the mid-rib and 
petiole of the leaves of the snow-ball ( V. opulus var rosum)\ Koch 
also speaks of its infesting the leaves. 
Winged female. —Anteniue reaching nearly to the honey-tubes, dusky; 
entire body, including head and thorax, black or very dark-brown; with 
sometimes times paler transverse lines on the abdomen; legs yellow 
except the posterior and middle thighs and ends of the tibias. 
Honey-tubes reaching nearly to the tip of the abdomen ; tail short but 
distinct. Length of body about .09 of an inch. 
Wingless female. —Antennae not more than half the length of the 
body, pale at base, dusky towards the tips. The form of the body is 
broadly oval, very convex sometimes appearing almost spherical. The 
general color is a lilac-brown, sometimes almost black, varying in 
depth of color in different parts of the body and also in different in- 
