IOWA ACADEMY OP SCIENCES. 
159 
depositing the little white glistening eggs around the edges of 
the buds, and their life cycle is complete. 
The egg when first deposited, during October, is of a glist- 
ening white color, largest at posterior end, i. e. the end having 
the stem or handle, which is roundish, and blends by a gentle 
curve with the side opposite the stem. This side is strongly 
convex in the posterior half, but the curve becomes more grad- 
ual as we approach the apex or cephalic end, which lies just 
across an ideal line extending longitudinally through the center 
of the egg. At the origin of the stem the egg is slightly 
bulged. Following the stem the egg is slightly concave, bend- 
ing toward the opposite convex side of the egg. Then toward 
the anterior end it again becomes convex and blends with the 
opposite side to form the tip, which is acutely rounded and has^ 
a slight transparent appendage which, in some cases, is indis- 
tinct. 
After the egg has been deposited for some time it turns yel- 
low, probably due to the gradual development of the larva. As 
a whole it is not as transparent as with certain other species, 
but still the segmentation can be seen to some extent. Although 
they are deposited in the fall they do not hatch till in the spring 
w^hen the buds begin to open. 
The young larvae present the usual appearance, but are 
marked with black while the older ones are light green. 
PSYLLA AMORPH^. Sp. IIOV. 
Found on Amorpha fruticosa. 
Description . — General color light green, marked with yellow- 
ish bands, especially on the mesothorax. On the dorsulum we 
find two bands usually united in front but divergingposteriorly; 
on the mesonotum are four long yellow bands separated by 
smaller bluish-green ones. Head, including the eyes, much 
broader than long; posterior margin concave; dorsal cavities 
large, round, comparatively deep, well defined. Sometimes 
slightly tinged with yellowish, and surrounding surface of a 
lighter green color. Lobes of vertex distinct, rounded, slightly 
diverging. Frontal cones very short, broadly rounded, distant, 
and furnished with a large bristle and numerous small ones. 
Antennae reach to base of first pair of wings; first joint larger 
than second, third the longest of all, succeeding ones of equal 
length; the tenth somewhat enlarged; first three light colored, 
fhe tips of the rest darker, being most intense on the fourth, 
