1922 ] 
Notes on Livia maculipennis 
227 
EGG. Length, 0.3 mm. Greatest width 0.9 mm. Lemon yellow- 
ish; elliptical, somewhat flattened on one side, bluntly pointed at 
distal end, basal end terminating in a short projecting stipe. 
First Nymphal Stage Length 0.4-0.45 mm. Width of head across 
eyes, 0.12 mm. Color, pale yellowish or whitish tinged with 
brown. General shape, subrectangular, somewhat flattened. 
Hoad truncate, slightly narrower than thorax; eyes red, lateral; 
antennae erect, cone-shaped, tip truncate and bearing two hairs. 
Thorax with sides subparallel, slightly converging posteriorly, 
length about one-third greater than length of abdomen, seg- 
mentation indistinct. Abdomen subcircular to oval except where 
it joins the thorax, segmentation indistinct, fringed with a row 
of equidistant hairs. Sheath of rostrum extending almost to 
between second pair of legs. Legs short, chunky, gradually tap- 
ering toward tip which bears a sucker disk and two hairs. 
Second Nymphal Stage. Length about 0.73 mm. Width of head 
across eyes 0.22 mm. similar to preceding stage in color, shape 
and general proportions. 
Third Nymphal Stage. Length about 1.1 mm. Width of head 
across eyes, 0.3 mm. Color, shape and general proportions some- 
what similar to those of preceding stage. Dorsal surface of 
thorax bears brownish spots. Upper surface of last few ab- 
dominal segments brownish. Tips of legs and tips of antennae 
brownish. Sides of mesothorax produced laterally into pro- 
nounced pads. Sides of metathorax produced laterally into pads 
less pronounced than those of mesothorax. Abdomen about as 
long as thorax, more oval in shape than formerly and with a 
more decided yellowish tinge, tip clothed with many fine hairs. 
Fourth Nymphal Stage. Length about 1.7 mm. Width of head 
across eyes 0.5 mm. Yellowish white. Head as wide as thorax 
broadly rounded anteriorly. Eyes, red, prom’nent, lateral. 
Antennae conical, erect, as long as width of head between antennae. 
Thorax subrectangular, about as long as abdomen, sides parallel, 
dorsal surface bearing several brownish spots. Wing pads large, 
pronounced extending obliquely, posteriorly. Wing pads bear- 
ing few short hairs. Abdomen oval, constricted somewhat 
anteriorly, strongly convex, segmentation indistinct, apical 
