1833. ] Entomology. 1287 
insects as the different species of locust; points which will be of 
special interest in case of another invasion of the Rocky Moun- 
tain locust, though certain species of our native locusts are prob- 
ably no less important economically if their abundance and con- 
stant work be taken into consideration. 
The odspores could easily be distributed in localities where the 
disease occurs, and thus the disease could doubtless be introduced 
in localities not previously infected, and once introduced it would, 
like other epidemic diseases, under roper conditions propagate 
itself. Further study is necessary to establish these points and 
to determine what methods, if any, are to be adopted for the cul- 
tivation of the disease.-— Herbert Osborn, Agricultural College, 
Ames, Towa. 
locust the body of this last contains chiefly the decomposing 
“blackish fluid” alluded to, and this doubtless offers an inviting 
nidus to the spores of the Entomophthora. The general appear- 
ance of the pulverulent mass of spores is very similar to that of 
assospora cicadina Peck, affecting Cicada when debilitated (31st 
Rep. N. Y. St, Mus. Nat. Hist., p. 44, 1879)—C. V. R. 
Occurrence or A STRATIOMYS LARVA IN SEA-WATER.—I send 
herewith rough sketches of a salt-water grub found by me on the 
28th of July, beneath a bundle of sea-wrack or Zostera—popu- 
arly known as eel-grass—on the sea-beach at the north end of 
Plum island, near the mouth of the Merrimac river. I never saw , 
4 grub that could stand the washings of the sea before, and I om 
Surprised by its habitat as well as its size. I picked up er - 
stass and the grub, and kept it in a box alive for three ide 
when a child got the box and I lost the prize. I believe it = 
attained its growth, and I regretted that its transtorna da 
not be witnessed, Fortunately, fearing, lest the grub ro iS- 
 îppoint me, I measured and sketched the maggot, heir ce 
black and white. The head was not larger than the end ot a 
cambric needle. —A. W. Pearson, idepe gs 
€ sketch is evidently that of the larva of a 
anys, a fly typical of the diperas family Stratiomy idee. bone cd 
the first time the larva has occurred in sea-water, SO tar 
oe aware. Similar larve have occurred in a hot aTe we 
Mdo (American NATURALIST, XVI, p. 599), also in DO , 
