60 CLASSIFICATION OF THE ALEYRODID.*;. 
dominal region, and two pairs of smaller pores on anal segments; 
on caudal end of case there are two pairs of scalelike markings on 
the thorax, and a pair of simple pores near cephalic margin. Ab- 
dominal segments distinct. 
From within the margin of case all around arises a series of slender 
spines, or seta?, about 12 on each side. There is a pair of minute 
seta? just cephalad of the vasiform orifice, and two pairs of seta? are 
present on the thoracic region. 
Vasiform orifice (PL XVI, fig. 3) subcordate to subcircular, little 
longer than wide. Operculum subrectangular. concave on distal 
margin, almost twice as wide as long. Lingula as usual, spatulate, 
with two pairs of spines on distal end. Operculum and lingula 
minutely spinose. On ventral surface of case the legs are quite 
evident, terminating in a single, hooked claw. Antenna? as usual, 
two- jointed, the distal joint numerously ringed. 
Adult female. — Length 1.9 to 2 mm. Fore-wing, length 2.60 mm., 
width 1.23 mm. Body and wings dusted with white wax, and there 
is a copious waxy secretion from ventral surface of abdomen of both 
sexes. General color of head and thorax dark brown to blackish, 
abdomen bright red; legs, margins of wings, wing veins, and an- 
tenna? reddish. 
Eyes plumbeous, constricted, the smaller division below. Fore- 
wing (PL XVI, fig. 6) marked across the middle with a conspicuous, 
broad brownish band. This arises from the cephalic margin of the 
wing and extends caudad usually beyond the media well toward the 
caudal margin of wing. Hind wing without markings. 
Antenna? as usual (PL XVI, fig. 8). Tibia of hind leg 0.8 mm. 
long; first tarsal joint 0.26 mm., second tarsal joint 0.13 mm. in 
length. 
Adult male. — Length 1.3 mm. ; valves of anal forceps 0.7 mm. long, 
curved, inserted in the cylindrical anal segment (PL XVI, figs. 10, 
11). Forewing 2.1 mm. long by 0.95 mm. wide, marked as described 
for female. Hind wing unmarked. General color dusky to blackish, 
more or less covered with white waxy powder. 
Type. — No. 14768, U. S. National Museum. Described from numer- 
ous eggs, pupae, and adults of both sexes. Dedicated to Mr. P. L. 
Guppy. 
Aleurodicus jamaicensis Cockerell. 
(PI. XIX, figs. 1^5.) 
Aleurodicus jamaicensis Cockerell, Proc. Acad. Nat. Scl , Phlla., vol. 54, 
p. 280 (1902). 
The type of this species consists of a single parasitized pupa case 
in a balsam slide mount. From this scant material and the imperfect 
original description we are quite unable to obtain an adequate con- 
