70 CLASSIFICATION OF THE ALEYKODIM1. 
Subgenus LECANOIDEUS n. subgen. 
Insects with the characters of the subgenus Aleurodicus, excepting 
that the vertex of the adult is bilobed and the lateral margin of the 
pupa case is deflexed, curving under the ventral surface. The pupse 
are devoid of the reduced compound pores near the vasiform orifice. 
Lingula of pupa usually exserted; that of adult narrow and included. 
Type, giganteus n. sp. 
Species of Subgenus Lecanoideus. 
A. Pupa case large and broad, with the anterior pair of compound pores near 
cephalic extremity mirabUis. 
B. Pupa case elongate, with the anterior pair of compound pores a considerable 
distance from the cephalic extremity giganteus. 
Aleurodicus (Lecanoideus) giganteus n. sp. 
(PI. XXIV, figs. 1-12: PI. XXV.) 
This aleyrodid was collected by Mr. Albert Koebele at Pernam- 
buco, Brazil, December 28, 1882. The host was not stated by Mr. 
Koebele, but appears to have been a species of Ficus. As stated 
with reference to A. neglectus, the present species was also carried 
in the Bureau of Entomology collection as anonce Douglas, and this 
latter was thus erroneously listed from Pernambuco, Brazil. This 
is the largest species of the genus thus far recorded, although a much 
larger member of the family, Udamoselis pigmentarla (p 25) from 
South America, has been described by Enderlein, 18 with a wing 
length of 5.5 mm. and a body length of 7 mm. 
DESCRIPTION. 
Egg.— Elongate, about 0.4 mm. long. Stalk short; eggs lying 
prostrate on leaf, on which they are scattered promiscuously; brown- 
ish in color and without markings (PL XXIV, fig. 1). 
Pupa case.— Length, from 1.5 to 1.85 mm. Width 0.9 to 1 mm.; 
elongate, somewhat narrowed at each end. Convex, the sides de- 
flexed in mature specimens, resembling a lecanium scale (PI. XXIV, 
figs. 2, 3). Pupa 4 are covered by a very abundant secretion of white 
wax, of a generally flocculent appearance (PI. XXV). Examined 
more particularly, there will be observed a group of vertical columns 
Considerably higher than the case is wide, from the abdominal region 
of the dorsum, very compact at the base, but separating more or less 
into separate bundles distally. This secretion appears to arise from 
the abdominal segments, extending completely across the dorsum, 
from the compound wax pores on each side. Also in this columnar 
type of secretion are found the glassy wax rods from the compound 
wax pore- which in this species are comparatively slender and short. 
