= 2 “= 
COTTON INSECTS 
Among the more interesting records of insects taken on day flights 
by airplane in the upper air during the month of June, 1931, are 
the following: 

200 feet . .... . A species of Lampyridae (firefly, alive) 
200 feet .... . .A species of Bremidae (bumblebee, alive) 
200 feet... .. . Stictocephala festina Say (3) 
1,000 fect ..... . Diabroticd ¥ittata Fab, 
200 feet... .. . Ceratomegilla fuscilabris Muls. 
A specimen of Stictocephala festina flew into the cockpit of the 
plane at the altitude of 2,000 feet, and one at the altitude of 4,000 
feet. The specimens were captured and preserved. On days and nights 
when flights were made to collect insects sweepings were made to col- 
lect insects on the ground. These insects were preserved, and will be 
used later when making comparative studies of the insects in the upper 
air and on the ground. 
Observations in the Red River Valley at Shreveport, La., on June 
20, 26, and 27 revealed the fact that both Lygus pratensis L. and Psallus 
Seriatus Reut. were in the cotton in sufficient numbers to cause severe 
injury. In one locality, 12 miles south of Shreveport, 500 sweepings 
were made in five different fields of cotton. The average per 100 sweeps 
iiethese fields was: P. seriatus 102:8, L. pratensis’49.6, and A. rapidus 
0.8. The field with the heaviest damage averaged 157 Psallus and 73 
Lygus. The cotton in this field was approximately 2.5 feet high with 
no fruit on the plants. Considerable dusting with sulphur for hopper 
control is being done in this valley. 
T. C. Barber, of the Brownsville, Tex., laboratory, reports that 
in connection with the infestation of the cotton leaf perforator there 
seems to be some agency which they have not been able to isolate that 
is causing a great reduction in the miners in the cotton leaves. In 
a number of cases the miners are dead within the mines but quite fre-. 
quently the mine is empty, with no corresponding larval infestation on 
the foliage of the cotton plant to account for the missing miners. 
Dr. F. A. Fenton reports that observations made on the pink boll- 
worm in the vicinity of Presidio, Tex., indicate that the first gener-— 
ation of this insect is passed in squares and that the feeding period 
of the larvae in squares is much shorter than in bolls. 
INSECTS AFFECTING MAN AND ANIMALS 
The latest reports from the Fargo, N. Dak., field laboratory state 
that horse bots continue to be a serious pest throughout North Dakota, 
Minnesota, and Manitoba, Canada. 
