14 
C. Agricultural Experiment Station 
outline (Eig. 5). Filaments of wax are secreted from all parts of the 
body, the waxy filaments soon run together and gradually melt, so that 
the downy appearance that is so characteristic at first is soon lost. The 
color of the wax is white at first, but later it turns a very dark grayish 
black. 
DESCRIPTION OF FEMALE STAGES 
After the first molt (Eig. ,5) the female scale insect is nearly circular 
in outline and measures about .375 mm. in diameter, and except for its 
small size it resembles the adult female very closely. After the second 
molt the female scale insect is about .510 mm. in diameter. 
The adult female (Eig. 7) measures about .950 mm. in diameter, but 
very slightly longer than broad. The mouth parts are nearly central in 
position. The segments of the abdomen are not very distinct. The 
general color as chitin yellow. The pygidium (Eig. 8) shows the follow¬ 
ing characters: 
“There are three pairs of well-developed lobes. The median lobes are 
rounded posteriorly, or often with a slight notch on the lateral margin, 
and taper to a point anteriorly; the second lobe of each side is somewhat 
triangular in outline, with the lateral edge serrate; the third lobe is 
larger than either the first or second lobes, triangular in outline, and 
serrate on lateral margin. 
“The posterior third of the lateral margin of the segment appears to 
be of the same structure as the lobes, and has five triangular serrate 
lobes; the posterior one of these is the largest, and is larger than either 
of the true lobes. 
