54 
mud wasp in the deserted paper nests of Vespa maculata. One that he opened 
recently contained no less than nine mud- wasp cells, ahout one iuch in length, in 
the interior. 
Root Web-worm in Pennsylvania. — We have received from Mr. George C. Maule, 
of Gum Tree, Pa., larvae hearing the characteristic markings of the root web- worm, 
Crambus zeellus, with the statement that it is injurious to cornfields in his vicinity. 
On his own farm it occurred in a field which had lain two years in clover and 
timothy. In a neighbor's field of the same age in rotation of crops four acres of 
corn were entirely destroyed. Our correspondent states that the worst affected 
fields are old timothy sod. 
The Horn Fly attacking Horses. — It will bo remembered that on page 344 of the 
last volume of Insect Life, we mentioned an instance of the horn fly attacking a 
horse at Cheyenne, Colo., and inquired if other correspondents had observed similar 
cases. Eecently Mr. W. C. Brass, of Carlisle, Ark., has sent a large number of the 
true Hcematobia serrata which he himself took from horses. Prof. R. H. Price, of 
the Texas Agricultural College, also writes that he has seen the flies on horses in 
both Virginia and Texas, but never in any great abundance. 
Flies in Seaweed. — Mr. Arthur H. Norton, of West Brook, Me., has sent us 
specimens of Coelopa frigida Fall., a small fly of the family Phycodromidse with the 
information that it occurs abundantly in windrows of seaweed left by high tides on 
island shores. During the warmest part of the da}' they may be seen flying play- 
fully over their habitat. On being approached they crawl into the seaweed and are 
quick to hide " even when quite numb." Our correspondent was on an island during 
February, and the temperature averaged freezing during that time, the seaweed 
which the insects inhabited being frozen except at the surface exposed to the sun. 
o 
