293 
with their apical margin somewhat scalloped (see Fig. 14); second pair of plates with 
inner margin nearly straight, outer margin with two rounded incisions making 
three rounded sub-lobes; third and fourth lobes acutely dentate, third with one 
tooth and fourth with three; spines small, rather stout; four lateral spines on 
eighth segment, five or six on seventh, five or six on sixth, and two each on five 
and four; in anal plate, on each side exterior to lateral groups of pores (or spin- 
nerets) is a longitudinal row of five narrow, oval, obliquely placed, transparent 
spots, resembling minute spiracles. Whole surface of body finely, microscopically 
shagreened. 
Fic. 15.—Diaspis lanatus; Adult male—greatly enlarged; a, tarsus; b, poiser or balancer—still more 
enlarged (original). 
Scale of Male (Fig. 12, c, d).—Color pure white. Larval exuvia pale yellow, much 
lighter in color than that of female. Median carina rather feeble, but extending 
the whole length of scale. Sides subparallel, slightly diverging in a few specimens. 
Length rather more than a millimeter; width one-third length. 
Male Pupa.—Pale orange in color; eyes purplish black; all limbs white. 
Adult Male (Fig. 15).—Length of body, exclusive of style, 0.4™™; style 0.2 ™™; 
expanse 1.2™™, General color bright red, sides of abdomen whitish, anal segment 
yellowish, all legs and antenne yellowish; eyes dark purple; wings colorless. 
Antenne ten-jointed, joints 3 to 10 long, elliptical, subequal in length, scape large, 
joint 2 very small; legs short, tibiz a little longer than femora, tarsi about half as 
long as tibie; tarsal claw slender with three digitules. 
Halteres very slender at base, broadening rapidly to tip 
of first joint, and somewhat constricted at middle of this 
joint. Apical or hook joint nearly as long as basal joint. 
Two ocellar spots on lateral margins of head, immediately 
behind compound eyes. Thoracic details as shown in 
figure 15. 
Newly-hatched Larva (Fig. 16).—Color dark orange. Eyes 
purple, legs and antenne pale. Antenne six-jointed. © 
Joints 1 to5 subequal in length and decreasing in width. 
Joint 6 long, acuminate, ending in a delicate stylus. Each 
segment of the abdomen bears on each side a rather strong 
lateral spine increasing in length towards anal end of body. 
Two long bristles at tip. 
Female Larva, Second Stage (Fig. 17).—Color light orange 
yellow. Shape very broadly oval. Abdominal segments Fig. 16.—Diaspis lana- 
not incised and difficult to detect. Antenne not increased ‘* Young larva—greatly 
in size and appearing almost rudimentary. Lateral bris- aie re(origina): 
tles very short, scarcely distinguished; anal bristles also short. Surface of dorsum 
covered with dense, curly, glistening, white waxy threads. The pores from which 
