ALEURODICUS (mBTALBUBODIOUS) ALTJSSIM US. 73 
folded under the case and ends in a series of closely set, superimposed 
wax tubes (PL XXVI, fig. 5). Vasiform orifice (PL XXVI, fig. 3) 
broadly cordate, considerably wider than long. Operculum short and 
broad. Lingula large, protruded, arrow-shaped, with two pairs of 
spines, distally. On ventral surface, legs and antenna? very evident. 
Basal segment of legs large, subglobose; distal segment longer than 
basal, finger-like, ending in a single strongly curved claw; antenna 
long, numerously ringed as usual. 
Adult. — The adult we have not seen. It differs from giganteus in 
being smaller, and in the wing markings as described by Cockerell. 
Subgenus METALEURODICUS n. subgenus. 
Forewing with the venation of Aleurodicus, but with radius x much 
longer; antenna? and feet similar to Aleurodicus; vertex rounded; 
claspers of male short and thick; penis rather long; pupa case with 
compound wax pores, but these are different from those of Aleurodi- 
cus, being of the type illustrated in Plate XXVI, figure 3 ; lingula of 
vasiform orifice of pupa setose, short, included, and armed with four 
spines; that of adult broad, large, and exserted. Size small. 
Type, minimus Quaintance. 
Species of Subgenus Metaleurodicus. 
A. Abdomen of pupa case with five pairs of equal sized compound pores and 
on cephalo-median portion of abdomen a stellate structure surrounded 
by simple pores altissimus. 
B. Abdomen of pupa case with five pairs of compound pores of which the caudal 
are the largest; forewing with a dark macula within the radial 
fork minimus. 
C. Abdomen of pupa case with four pairs of compound pores; forewing with 
a dark macula below the radial sector cardirvi. 
Aleurodicus (Metaleurodicus) altissimus (Quaintance). 
(PL XXVI, figs. 6-11; PL XXIX, fig. 2.) 
Aleurodes altissima Quaintance, Tech. Ser. 8, Div. Ent., U. S. Dept. Agr., 
p. 20, (1900). 
ORIGINAL DESCRIPTION. 
Larva. — Size about 0.89 by 0.52 mm. ; yellowish white. A series all around 
of about 30 seta?. On dorsum are 5 pairs of moderately developed setae, a pair 
on cephalic segment, a pair on each of the thoracic segments, and a pair at 
vasiform orifice. Margin of case slightly crenulated. On the dorsum a few 
pores may occur somewhat promiscuously, and there are a few groups of pores 
around the margin. This stage in many respects approaches quite close in 
structure to the pupa-case. 
Pupa-case. — Size about 1.79 by 1.26 mm. ; subovate, narrowed cephalad. Color 
of young pupae, yellowish to white, and usually without other coloration. In 
