259 
from Yates Co., N. Y., where it was doing much damage by feeding 
upon the clover plant. In 1882 it was algo reported in quantity in 
Wayne Co., some forty miles north of the locality in Yates Co.* Bya 
letter from Prof. Lintner I learn that. its range is now greatly 
extended, being abundant in the vicinity of Buffalo, N. Y., and re- 
ported from Indiana and elsewhere. It has so far proved in general 
a very injurious insect,+ although upon the grounds of the Station 
(this being the first year of its observance), it was not especially so, 
which may be accounted for by the advent of an epidemic disease 
that carried off the larve in great numbers. 
The sick larve of all ages crawl up the herbage during the night, 
and instead of again concealing themselves near the ground on the 
approach of light, as the healthy ones do, ascend as high as possible, 
and if on grass, coil themselves in a horizontal position about the apex 
of the blade (fig. 7), or if on other objects, take a position as nearly 
2 similar as the shape of the object permits. If dis- 
turbed before the middle of the forenoon, the major- 
ity are still able to crawl, although sluggishly; by 
noon most of them are quite dead, but unchanged in 
appearance. It will be found that they cling to the 
leaf with greater tenacity than during life. Exam- 
ining the underside of the body will disclose the fact 
Fic. 7. that delicate, colorless holdfast¥have grown out from 
Fig. 7.Sick lar- ‘he median line, which attachifig themselves to the 
ve of Phytono- leaf, hold the insect firmly in place. Late in the 
ey heer as afternoon, the body has changed from the normal 
tip of a blade of yellowish or pea green and smooth appearance to 
F diatiatene Oo velvety gray. The next morning there is only a 
mel. small, blackened and shriveled mass remaining, 

while the surrounding foliage is powdered with a whitish, clinging 
dust, composed of the spores of the fungus. If some of the 
dead insects had been placed on a pane of glass, and a tumbler 
inverted over them during the night, they would have shrunken less, 
and been covered with a white fleecy growth, while on the glass, 
surrounding each body, would have been a white halo of spores two-' 
thirds of an inch in diameter, such as everyone has observed about 
dead flies on the window in autumn. This is the general course of 
this rapid and fatal disease. 
Dissecting a sick larva before death has occurred, a close net 
work of fungous threads will be found among the muscles which line 
the wall of the body. They are profusely branched, colorless, with- 
out partition walls, the contents finely granular and with or without 
vacuoles, or clear spots, of variable’ size (fig. 8). This mycelium 
grows rapidly and soon encroaches upon the body cavity of the in- 
*Lintner, First An. Rep. Insects of N. Yu, op. 262, 
tCf. Riley, Rep. U. S. Dept. Agric., 1881-2, p. 172. 
