ALEURODICUS DUGESII. 57 
Dorsum but little convex, body segments quite distinct in the dried 
specimens (PL XIII, fig. 1). There is a very copious secretion of 
white wax covering the lower surface of the infested leaves and 
completely hiding the insects beneath (PL XIII, fig. 2). The wax 
rods, from the compound wax pores, are unusually long, attaining 
in more perfect specimens a length of from 12 to 15 mm. Generally, 
however, these rods are more or less broken and are intermingled 
with bands or plates of wax from the marginal wax tubes. There 
is a short vertical fringe of white wax often persisting on the leaf 
after the pupa case has disappeared. 
The color is yellowish to brownish, some specimens, as seen under 
hand lens, being dark brown. The empty case is colorless. There 
is a narrow marginal rim composed of the short, squarish wax tubes, 
the incisions being shallow and acute (PL XIII, fig. 4). On the 
dorsum there are seven pairs of very conspicuous compound wax 
pores, six pairs on the abdomen about equally developed, and a pair 
on the cephalic region of about half the size of the former. From 
the marginal area all around arise a series of spines, 10 to 12 on a 
side, and there is a pair cephalad of the vasif orm orifice. 
Vasiform orifice subcordate, about as wide as long. Operculum 
subrectangular, about twice as wide as long. Lingula spatulate, 
rather short and broad, bearing a pair of spines (PL XIII, fig. 2). 
The rudimentary legs and antennas are quite evident on the ventral 
surface, and exhibit the usual structures for the typical forms of this 
genus. 
Adult. — A single imperfect male was found among the pupae on 
the leaves. The wings are without markings (PL XIII, fig. 5). 
This species, from the structure of the pupa case, suggests neg- 
lectus, common on Anona spp., guava, Ficus, etc., in the West In- 
dies, but differs in that the wings are not spotted or banded, in the 
large size of the two caudal pairs of compound wax pores, and there 
are differences in the lingula. From cocois it differs in numerous 
particulars, as will be noted on comparison. This is the third species 
of this genus recorded from outside of tropical America, though it 
may have been introduced in the Philippines along with its food 
plant. 
Type.— No. 14766, U. S. National Museum. Described from nu- 
merous eggs, pupae in balsam mounts, and infested leaves. 
Aleurodicus dugesii Cockerell. 
(PI. XV, figs. 1-13; PI. XVII, fig. 1.) 
Aleurodicus dugesii Cockerell, Can. Ent., vol. 28, p. 302 (1896). 
Specimens of this species are in the Bureau of Entomology collec- 
tion from several localities in Mexico, and on several different food 
plants, as follows: Oaxaca, on Hibiscus; Guanajuato, on Anona and 
