THE EGGPLANT LACE-BUG. S 
Pronotum feebly convex, black, with three low yellowish carina?, the median one 
a little higher before the middle, tapering toward the pale apex of the triangular 
posterior portion of the pronotum; the lateral membranous part of the pronotum angu- 
larly expanded, with two to five series of irregular areoles, the edge somewhat broadly 
reflexed, some of the nervures exteriorly blackish. Head, pronotum, and the edge 
of the membranous dilation densely covered with fine, soft hairs; pronotal hood 
rather large, much longer than wide, covering the hind part of the head, leaving the 
eyes free; surface yellowish white, opaque, with fine minute areoles. Hemelytra 
extending about one-third beyond abdomen; oblong-oval, broadly rounded at the 
end, feebly sinuate toward the base; the discoidal areas pyriform, reaching to about 
the middle of the elytra, reticulated, blackish at base and at apex, a pale stripe across 
the middle, the subcostal biseriate, yellow; costal margin yellowish- white, translucent 
with four or five series of medium-sized areoles at the widest part, those toward the 
base smaller; five transverse oblique nervures black at the costal area and all nervures 
at the apex more or less blackish. Legs pale, yellow. Length, 4 mm.; width, 2 mm. 
The following descriptions of the immature stages are by the 
writer : 
THE EGG. 
Length 0.37 mm., width 0.18 mm. Color light to dark greenish at base, gradually 
assuming brownish toward the apex. Top of egg crater-like, with whitish lacelike 
border, and screwlike rim. The entire egg resembles a miniature bottle. The eggs 
are attached to the underside of the leaves by their bases and usually lean in all 
directions and at almost every angle. 
THE NYMPHAL STAGES. 
First stage. — Length 0.3 to 0.4 mm, width 0.12 mm. The newly hatched nymph 
resembles a newly born aphis, is white to light yellow, with pink eyes, long legs, and 
antennas as long as body. 
Second stage. — Length 0.8 mm., width 0.19 mm. Color yellow. Antennas as long 
as body; the last segment clublike, covered with setae; last segment of the legs 
possessing a pair of claws. There are spines on each side of the thorax and from eacls 
segment of the abdomen. 
Third stage. — Length of body same as in the previous instar; width decidedly more, 
0.30 mm. Spines on lateral margin and on dorsal surface of body. First indications 
of wing pads occur in this stage by the swelling of lateral margins of the thorax. 
Fourth stage. — Length 1.5 mm., width 0.8 mm. Body oblong-ovate, yellowish. 
Head dark yellow, hood prominent; wing pads extending to second abdominal seg- 
ment. Entire body covered with spines, the position of which is discussed in the 
following nymphal stage. Antennae as long as body, light brown. 
Fifth stage.— Length 2.2 mm., width 1.2 mm. (PI. I, fig. 2.) Body oblong- 
ovate, yellowish except at margin of abdomen, where it is light yellow with dark 
patch at the apex. On the lateral margins of each side of first three abdominal seg- 
ments a tubercle rises directly from the surface, and from the last six abdominal 
segments rise prominent spiny processes. From the middle of each of first and second 
abdominal segments there rise two hornlike spiny processes, and one from the fourth,, 
fifth, and seventh segments dorsally. One spiny process and some tubercles on the 
lateral margin of the wing pads; two large spiny processes placed near together on 
the metanotum, and tubercles at each side of thorax. On each lateral margin of the 
hood there is a spiny process and some tubercles; two prominent spines are located 
centrally, and a small pair nearer the head. The head carries three strong spines in 
front, one long and two shorter ones; two large, strongly curved, hornlike spines 
at the base near the eyes. All spiny processes except on the lateral margins of the 
sixth, seventh, and eighth abdominal segments dark brown; those on latter light 
yellowish. Head yellowish brown; eyes prominent; thorax dark yellow; wing pads 
light yellowish with dark margin at base, extending to fifth abdominal segment. 
Antennae light brown, as long as body. 
