1894.] Entomology. 195 
flying like thistle down before the great pampero wind, not one soli- 
tary traveller ever returns. ” 
These flights occur during the summer and autumn. Mr. Hudson 
thinks the cause “is probably dynamical, affecting the insects with a 
sudden panic, and compelling them to rush away before the approach- 
ing tempest. The mystery is that they should fly from the wind before 
it reaches them, and yet travel in the same direction with it. 
* * * On arriving at a wood or large plantation they swarm into it, 
as if seeking shelter from some swift pursuing enemy, and on such 
occasions they sometimes remain clinging to the trees while the wind 
spends its force.” 
Mr. Hudson calls attention to Weissenborn’s observation of a dragon- 
fly migration in Germany in 1839,° and his mention of similar flights 
in 1816. These occurred in May and the insects flew south, 
An autumn flight of dragon-flies among the Alps has been described 
by W. Warde Fowler’ whose attention was called to the flight by a 
waiter inan Alpine hotel. The latter had “observed a constant 
stream of dragon-flies making their way up the valley; and during 
my walks that day I was able fully to verify hisstatement. All the way 
from Haspenthal to Andermatl these creatures were to be seen coming 
up against the wind, which was now blowing from the west. There 
was no mistake about it; countless numbers were steadily passing up 
the valley, but whither they were going it was hopeless to ascertain ; 
they did not seem to turn up the St. Gotthard Road, for I remarked 
them the whole way up the valley to the foot of the Furka Pass West- 
wards. ” 
A Carnivorous Tipulid.—Professor L. C. Miall describes’ the 
early stages of a crane-fly of the genus Dicranota with aberrant habits 
for Tipulide, the larve of which are mostly vegetable-feeders. This 
larva lives in the bottom of brooks or other water streams aud feeds 
upon the red worms of the genus Tubifex. The head of the larva is 
small, the alimentary canal straight and the body is provided with 
spiracles and tracheal gills, so that the animal can breathe in or out of 
water. Pupation take place in moist soil. 
Notes.—Mr. Albert P. Morse begins in the current issue of Psyche 
an important paper on the Wing-lengths of New England Acridiidæ, 
Mag. Nat. Hist. n.s,, v. III. 
"A Year with the Birds, 202. 
“Trans. Ent. Soc., London, 1893, 235. 
