THE BEET LEAF-BEETLE. 3 
Female. Claws [ fig. 1, 2] absolutely simple; last ventral obtuse, with a small 
notch at middle, from which proceeds a slight impression_or a smooth line. 
(Horn). 
SYNONYMY. 
The following forms are considered synonyms: 
Galeruca morosa Lec., Rept. Pac. R. R. Expl., p. 70. 
Galeruca maritima Lec., Proc. Acad. Nat. Sci. Phila., 1865, p. 218, 219. 
Galeruca erosa Lec., Trans. Amer. Ent. Soc., v. 12, 1885, p. 25. 
THE EGG. 
The egg (fig. 1, 0) is variable rounded oval in shape, light orange 
yellow when first laid, changing to dull brownish gray; strongly 
convex above and moderately flattened on the underside where at- 
tached to a leaf. The surface is minutely and deeply reticulated or 
pitted, a septagonal arrangement predominating, although hexagons 
also occur. The length is 0.8—-0.9 mm. and the width 0.6—-0.7 mm. 
The eggs are deposited side by 
side, usually on end, and closely to- 
gether in irregular clusters—not in- 
frequently in two layers, some laid 
on top of others—varying in number 
from 2 or 3 to 50, with an average of 
about 20 eggs in each cluster. They 
are laid on either the upper or lower 
side of the leaves of beets and more 
often on other larval food plants. 
(See Pi. IT.) 
THE YOUNG LARVA. 
aN 
> 
The young larva when hatched 
measures about 1.5 mm. and differs Fic. Dee leaf-beetle : Dorsal view 
from the mature form in having a of larva at left; profile view at 
more prominent head, a dark brown "22" Highly magnified. 
thoracic plate on shield, and in being of a dull gray color, the tuber- 
culate areas being less conspicuous, showing as darker brown. The 
legs are relatively more prominent and the hairs or spines with 
which the tubercles are armed are longer. 
THE MATURE LARVA. 
The mature larva (fig. 2) resembles in general contour, both as 
seen from above and from the side, that of Galerucella. It is nearly 
uniform dark olive brown in color, spotted with piliferous tubercles, 
which are more or less rounded, rather pale yellow and strongly 
marked. They are arranged in somewhat irregular rows, as shown 
in the illustration, those on the dorsal surface of the abdominal 
segments coalescing near their centers, forming transverse bands. 
The head is moderately shining black and portions of the legs are 
