Bob 
February 18, another snowstorm occurred and the worms were found 
again. | 
On the 2d of March, Mr. Samuel Auxer, of Lancaster, Pa., reported 
a similar occurrence of worms upon the surface of snow, and the speci- 
mens which he sent proved to be the larve of some Dipterous insect 
of the family Bibionidz. With the Bibionid larve were specimens of a 
Noctuid larva differing from any with which we are familiar. Later 
advices from Lancaster, this time from Mr. J. R. Henkel, stated that 
these insects were found upon the umbrellas of ‘‘some of our citizens,” 
indicating that they had come down with the snow. 
On February 27 Prof. 8S. F. Clark, of Williams College, Williamstown, 
Mass., sent in specimens of a larva ofa Cecidomyia which had appeared 
in the vicinity of Blackinton, Mass., on the top of the snow just after 
a heavy snowstorm. Prof. Clark wrote that the insects were present 
in great numbers and covered many acres and were on and about a path 
over which a man walked for a mile. 
Almost every winter we have received accounts similar to those which 
we have mentioned, although they have seldom been accompanied with 
specimens, and never, to our knowledge, have the reports been as gen- 
eral as during the past winter. The insects received before have been 
the larve of Chauliognathus and the Bronzy Cut-worm (Nephelodes vio- 
lans). Occurrences of the latter on snow have been recorded by Dr. 
Lintner in his Fourth Report, pp. 54 to 57, and we have mentioned them 
in our Annual Report for 1890, p. 244. 
All of these insects hibernate in the larva state. Our explanation of 
this interesting phenomenon is, in the majority of cases, that the larve, 
hibernating near the surface of the ground, have been tempted from 
their winter quarters by a warm, sunshiny day. While out a very. 
sudden freeze ensues, the ground-becomes solid, and the larve are un- 
able to return. to their former position. Then asnowstorm follows and 
the insects struggle to the surface of the snow, warmed by the sun, 
where they are plainly seen from their contrasting color. This explana- 
tion, however, will not suffice for all cases, and we believe that in some 
instances the smaller larve actually snow down. In such cases they 
have been lifted from the earth by some severe storm in milder regions 
to the south and carried in upper air currents to great distances, being 
precipitated again with the snow. 
VEDALIA IN SOUTH AFRICA. 
The Agricultural Journal, published by the Department of Agricul- 
ture of Cape Colony, of February 11, 1892, contains a formal ac- 
count of the result of Mr. Louw’s trip to this country and a definite 
Statement of the success of the importation of Vedalia into the Colony. 
Mr. Louw gives a full report of his trip, one of the objects of which was to 
obtain a supply of this beneticial insect. He took with him two boxes 
of Vedalia given to him by Mr. Coquillett, in Los Angeles, Cal., one of 
