aye Fay 
"During the month (August) evidence of a definite (leaf perfora- 
tor) moth migration has been secured," writes Mr. Barber. "Following a 
very light infestation in the experimental field of cotton during July, 
soon after the beginning of August the moths on a number of occasions 
showed up in larger numbers than any other stage, which is decidedly un- 
usual since under normal cenditions the larvae outnumber both the pupae 
and moths. * * * These moths were too numerous to have developed from 
the light perforator infestation existing in the field before they ap- 
peared, and evidently they must have flown in from more heavily infested 
locations, probably from some of the cotton fields in Mexico some 15 or 
20 miles to the south. Additional corroborative evidence was obtained by 
the collection of a number of moths near lights in the city of Calexico, 
several miles from the nearest growing cotton. Evidently the species is 
much stronger in flight than it has been given credit for." 
G. L. Smith and assistants, who are making studies of field migra-— 
tion of the boll weevil (Anthonomus grandis Boh.) at Tallulah, La., re- 
port that "the movement of insects was much greater (during August) than 
in any previous month. Especially was the increase of boll weevils no- 
ticeable. No doubt more boll weevils were collected during August this 
year than in any other season since screen collections have been con—- 
ducted." They also state: "Daily readings were made in the three series 
of screen studies located on the laboratory grounds. Tanglefoot was ap- 
plied August 4, 18, and 31. As in the field studies, there was an in- 
crease in number of insects over previous months. During the latter 
part of the month weevils were taken from the top screen on the tower 
which is 57 feet above the ground." 
Life-history studies with the tarnished plant bug (Lygus pratensis 
L.) are reported from Tallulah, La., by K. P. Ewing and assistants, who 
state: "Four nymphs were reared to maturity during August. The average 
number of days in the nymphal stage was 17. Egg incubation records 
were secured on 608 eggs during August. The average incubation period was 
9.5 days, the maximum being 12 and the minimum 7. The host plants of 
these eggs were Erigeron annuus (L.) Pers. and E. canadensis (L.)" The 
Same workers report: "Fourteen attempts were made to rear nymphs to 
maturity, cotton being used as the host plant. Two were successfully 
reared, the average life being 19.5 days. A total of 17 egg incubation 
records were secured during the month. The average incubation period was 
12.8 days, the maximum being 14 and the minimum 12." 
Emergence of the cotton flea hopper (Psallus seriatus Reut.) has 
been observed at Tallulah, La., by K. P. Ewing and assistants, who re- 
port: "A total of 142,908 cotton flea hopper nymphs emerged (from the 
cages) during 1931. This emergence occurred as follows: March, 1,989, 
Or 1.59 per cent; April, 93,946, or 65.75 per cent; May, 45,703, or 
51.98 per cent; June, 936, or 0.58 per cent; July, 433, or 0.30 per cent; 
August, 1, or 0.0007 per cent of total." 

