38 BULLETIN NO. 1, DIVISION OF ENTOMOLOGY. 
ADDENDA. 
The "murvite*' costs $1 per quart at Gainesville. This makes a 5 
per cent, solution cost 40 cents per gallon ; 2 J per cent, solution cost 20 
cents per gallon ; 1.25 solution cost 10 cents per gallon. 
The small yellow ant is a terrible pest to housekeepers, invading 
houses and destroying all meats, sugar, lard, &c, that it can get into. 
It renders entomological research often futile. I have many times 
obtained a fine laiva, and after feeding it a day or so, have found it 
nearly eaten by these pests ; it is necessary to put the vivaria on legs, 
and then in kerosene, to keep out the ants. 
Fleas. — These appear in February, March, and to June, then disap- 
pear until the next February — rather singular. 
Mosquitoes and gnats found here only during the rainy season. 
Blind mosquitoes occur in such numbers in July as often to fairly fill 
the air and cover the walls of houses. 
Ticks very common in summer on cattle. 
Chigoes, red bugs, common in hammocks around rocky points, rotten 
logs. 
OBSERVATIONS AND EXPERIMENTS UPON THE COTTON-WORM. 
The theory that the Aletia, as a perfect insect, survived the mild 
winters of Florida, was, I think, demonstrated as correct by finding the 
hibernating moth in wire-grass fields early in this year, and later by 
finding its eggs upon leaves of rattoon cotton in this neighborhood, and 
the moth in April upon sirup-painted fences. 
The frost of December 7, 1881, destroyed the Aletia, larvae, eggs, and 
pupa?, in pine-land fields, but in sheltered hammock locations I found 
larva* as late as January 3, 1882. That morning a temperature of 30° 
F. destroyed all larva? in this section. 
January 15 and January 21 I saw the Aletia moth in fields that were 
being burned off, but not again till in April. 
During November and December, 1881, and September of this year, I 
repeatedly buried pupae in both dry and moist earth ; but from several 
hundred thus treated no moths escaped. 
One inch of even loose sand prevented them from gaining the surface^ 
and of dozens brought me by planters during February, that had been 
plowed up, none proved to be Aletia, but were different species of Koc- 
tuids. 
During the months of May, June, and the first weeks of July I made 
strenuous exertions to obtain larvae or perfect Aletia, but with no avail.. 
I visited field after field, especially points that had first shown the cot- 
ton-worm last year, and hammock fields that were usually forward in 
