64 CLASSIFICATION OP THE ALEYRODID^. 
The senior author in studying the forms of Aleyrodidae in the 
bureau collection 21 accepted these determinations without critical 
examination of the material, and thus fell into the error of using the 
pupa? of neglectus and the adults of giganteus in characterizing 
anonce in the table of species (1. c, p. 43), and these two species were 
confused in stating the geographical distribution and food plants of 
anonce (p. 44). A. neglectus differs from anonce in that the wings of 
the adult are spotted with dusky. In anonce the wings are stated to 
be snowy white. A. anona> differs from giganteus in its smaller size 
and in the shape and structure of the pupa case, notably the presence 
on the caudal region of the two pairs of reduced compound pores, 
quite absent in giganteus. 
Aleurodicus neglectus was also received from H. Caracciola, Port 
of Spain, Trinidad, September 28, 1896, on Anona reticulata; and 
again, from Trinidad, June 7, 1907, on coconut, from Mr. O. W. Bar- 
rett. March 11, 1911, a further lot of material of this species was 
forwarded by Dr. F. W. Urich, Port of Spain, Trinidad, on Anona 
squamosa. The species is therefore known from Para, Brazil, and 
Trinidad, and from the following host plants: Anona reticulata. A. 
squamosa, Anona sp. (Brazil), and the coconut, Cocos nucifera. 
This insect and A. destructor on coconut from the Philippines are 
noteworthy on account of the large size of the compound wax pores 
of the pupa case and the rather elongate and distally narrowed 
lingula. 
DESCRIPTION. 
Egg. — Length 0.3 mm., light yellow, unmarked; stalk very short; 
egg lying prostrate on leaf (PL XX, fig. 1). 
Pupa case. — Size about 1.3 by 0.92 mm., broadly elliptical in out- 
line. Dorsum little convex, the body segments distinct (PI. XX, 
fig. 2). There is a copious secretion in the form of more or less 
fluted bands or masses of white wax from the simple dorsal and sub- 
marginal wax pores, extending out on leaf all around, several times 
the width of the case. From the compound wax pores are produced 
the long glassy wax rods usual in the genus, but their length in this 
species is remarkable and very similar to A. destructor. The pupa? 
on the leaf are quite hidden under the large mass of wax, which ren- 
ders them quite conspicuous. In the copious wax on the lower sur- 
face of the case the adults occur in numbers. There is evidenced a 
tendency to congregate along the midrib of the leaf, though individ- 
uals are also scattered over the general leaf surface (PI. XXI, fig. 2). 
The color of the case, denuded of wax, is yellowish to darker, some 
specimens varying to plumbeous. Margin of case apparently entire; 
just within margin all around is a closely set row of simple wax 
pores (PL XX, fig. G) and similar pores are scattered generally over 
