alternate expansion and contraction of the segments. This mode of 
locomotion seemed strange at first, but upon reflecting that the 
•probable natural position of the larva m the earth is upon its bacjj 
with its legs grasping the grass roots, it seemed not so unnatural 
after all. The strong transverse corrugations and rows ot bristles 
upon the dorsum, taken in connection with the extremely business, 
like and natural air with which the larvae took this position, and 
the rapid progress which they made while in it, would seem to indi¬ 
cate that the back is used for locomotion with these insects more 
than has perhaps been suspected. 
This beetle may be readily distinguished from the other large leaf 
beetles by the fact that the scutellum is invisible, being conceal*! 
by a backward projecting process of the prothorax. ihe head is 
quadrate, with an obovate extension in front; upper surface with a trail* 
verse ridge on each margin and one in the middle. Elytra with roundejl 
shoulders, and slightly narrowing posteriorly with two slight, longi¬ 
tudinal ridges on each. General color, a beautiful velvety green, 
with a broad margin of orange yellow around the elytra. Length, 
three-quarters of an inch; width of elytra across the shoulders, 
about one-half the length. The antennae have a club at the end 
similar to that of the previous genera; all the claws of the feet are 
simple and equal, neither split nor unequal m size; the anterior 
coxae conical and prominent. 
From the common white grub, the larva may be distinguished, 
when living, by the fact that when placed upon a smooth surface 
it turns upon its back and progresses in that position, whereas the 
common white grub crawls awkwardly upon its legs. Ihe larva ot 
Allorhina is further distinguished by the fact that all the segments 
are densely hairy, while in that of Lachnosterna the three thoracic 
segments, and the three abdominal segments preceding the last, are 
destitute of pubescence, and furnished with only a few long, slender 
hai rs. 
The life history of this species and its habits in general are so 
strictly similar, as far as known, to. those of the white grub, that 
the remarks concerning remedies against that species will apply also 
to this. 
8 . Small white grubs. 
The Strawberry Koot-Worms. 
Colaspis brunnea, Fab. 
Paria aterrima, Oliv. 
Scclodonta pubescens, Mels. 
Order Coleoptera. Family Ckrysomelidje. 
[Plate VII, Fig. 7. and Plates VIII and IX.l 
In nearly every strawberry field visited during the past two year: 
in Southern Illinois, except those recently established, varying ruin 
bers of small, thick, white grubs could be found infesting the root; 
