ALEURODICUS (LECANOIDEUS) GIGANTEUS. 71 
There is also a copious secretion of minute cottony wax threads, 
from a broad submarginal zone or band of small -imple pores com- 
pletely around the case. From the margin or edge of the case there 
is a secretion from the tubular wax pores (PL XXIV, fig. 6) which 
extends downward, more or less, under the pupa case in the form 
of an amorphous wax plate. The color is brownish to very dark 
brown. Some specimens, however, have a distinctly reddish color, 
though such individuals are comparatively few. The empty case is 
very light brown, without distinctive color markings. 
The dorsum and margin of case are without spines. On each 
side of the abdominal region are four compound wax pores (PL 
XXIV, fig. 5) and a pair of similar though smaller pores occurs 
on the cephalic end of case. The two pairs of small compound pores 
present on the caudal end of the case, in many members of the genus, 
are absent in this species. 
Vasiform orifice (PL XXIV, fig. 4) subcordate, considerably 
wider than long. Operculum about twice as wide as long, the basal 
corners rounded, the caudal margin somewhat concave. 
Lingula large, exserted, spatulate in shape, bearing toward distal 
end two pairs of spines. On ventral surface, legs and antennae 
very evident; basal segment of leg large, subglobose. Distal seg- 
ment of leg longer than basal, finger-like, ending in a single curved 
claw. 
Adult female. — Length from head to tip of abdomen about 2.75 
mm.; length of forewing 3.50 to 3.75 mm.; width 1.70 to 1.75 mm. 
(PL XXIV, figs. 7 and 8) ; length of hind tibia about 1.23 mm.; 
length of basal segment of tarsus 0.32 mm. ; length of distal segment 
0.16 mm. 
Color of body and head light brownish, the legs and antenna? 
paler; wings white, without markings, more or less dusted with 
powdery wax. Ventral surface of body of the insect with light 
flocculent wax apparently secreted from the abdomen. Some leaves 
show paths or trails of white wax, evidently made by the adults 
during the course of their movements (see PL XXV). Eyes of the 
usual constricted form. Antenna? about 1 mm. in length ; segments I 
and II about equal in length to segment VI; segments VI and VII 
subequal ; segment III about one-sixth shorter than segments IV to 
VII, inclusive (PL XXIV, figs. 9-12). 
Male. — Having the general appearance of the female. Genital 
valves long and slender, penis short and curved near distal end. 
Type. — No. 14767, U. S. National Museum. Described from abun- 
dant material of eggs and pupa? on leaves, and adults on card points, 
and all of these stages in balsam mounts. 
