160. 
A PREDACEOUS CAPSUS. 
An interesting note is published in the Entomologische Nachrichten, 
Jahrgang Xvi, heft 2, by C. Verhoeff, to the effect that he has ob- 
served Capsus capillaris feeding upon Aphis rosae. An individual was 
observed to insert its proboscis in the abdomen of the plant-louse be- 
tween the honey tubes. 
WATER BEETLES FOUND IN AN OLD GASOMETER. 
An interesting note is published in the Entomologist’s Monthly Maga- 
zine for March, 1590, which indicates that Dytiseus marginalis may live 
under extraordinary conditions. A number of specimens were found 
living in rusty water at the bottom of a hole left when the iron easing 
of a gasometer had been removed. both water and mud being strongly 
impregnated with gas. Mr. T. H. Hall. the writer of the note, who 
secured the specimens, states that they carried a strong odor of gas 
even aiter they had had two or three baths of fresh water. The old 
gas-holder must have been their home for a long period of beetle life, 
judging from the time of year when they were found and from the num- 
ber of both sexes seen. The water was partly inclosed and was quite 
stagnant, being unconnected with any other water. They could have 
migrated had they desired to do so. They were quite active, and seem 
undoubtedly to have remained entirely from choice. 
HICKORY HORNED DEVIL INJURING COTTON. 
Through Dr. Tate Powell. of Starke, Fla.. we learn that the larva of 
Citheronia regalis has been doing considerable damage to sea-island 
cotton in Bradford County the present season. 
A NEW FOOD-PLANT OF THE FLUTED SCALE. 
Mr. C. R. Orcutt, of San Diego, Cal., has recently sent us specimens 
of Icerya purchasi from the Mission Valley. which he found upon 
Hymenoplea salsola. This plant has not previously been mentioned as 
a food-plant of the Fluted Seale. 
TEMPERATURE OF WEEVIL-INFESTED PEAS. 
On page 59, volume I, Mr. Howard published a short note concerning 
some observations by Judge Lawrence Johnson, upon a remarkable 
increase of temperature of a mass of cow peas infested by Bruchus seu- 
tellaris. The same observation has recently been made again by Mr. 
William D. Richardson. of Fredericksburg, Va. We quote from a let- 
ter from Mr. Richardson addressed to Mr. Schwarz. dated November 1, 
1891: 
August 13 I had occasion to move a bag of peas which had been in the corner of 
my room (in our farm house) for a month or more, and from which thousands of 
Bruchus scuiellaris had been emerging. On touching the bag I was surprised at the 
temperature, and observed as follows: 
