hE) be 
(81), 3,000 feet (66), 5,000 feet (8), 6,000 feet (1), 9,000 fectaiiie 
11,000 feet (3), 12,000 feet (4,) and 13,000 feet (1). * * * Thestaae 
collection of insects for the month * * * showed an average of 4.31 in- 
sects taken in a period of ten minutes (exclusive of altitude flights) as 
compared with 4.12 insects taken in the previous month." 
Mr. Ewing, Tallulah, La., states: "During the month of October @ 
total of 8,100 sweeps with a hand net were made to determine the popula- 
tion of Lygus pratensis (L.), Psallus seriatus Reut., and Adelphocoris 
rapidus Say on eight weed host plants and cotton. The average number of 
Psallus seriatus collected per 100 sweeps from croton during the first, 
second, third, fourth, and fifth weeks was 805.5, 263.5, 69.0, 30.0, and 
3.0 respectively. 

Table 1,-Average per 100 sweeps of Lygus pratensis (L.) collected from 3 
main host plants. Average of from 200 to 300 sweeps for each plant per 
week 
30. yp aa ieee lst week 2nd week 3d week 4th week Sth week 
september October October October October 
Host plant 28-Oct. 3 5-10 12-17 19-24 26-31 
Aster ericoides L............ se, 169.4 ROAnG 354.3 ROA 
Erigeron canadensis L.... 194.0 12620 are 217.4 238 
Golden rode tie Paina, be 196.5 264.7 734.6 1500070 518.5 
i nn a a nn i a a a a a nr ne ce i ee en eee ee ee ee ee ae 
"The above table shows that these three plants were important hosts 
of Lygus pratensis during October. All three plants were found quite 
abundantly in this vicinity throughout the month. Chamaecrista robusta 
died out during the first week in October, thereby eliminating it as a 
further host for Adelphocoris rapidus. In fact there was no plant on which 
A. rapidus was found in any great numbers during October. There were 
very few mirids found in cotton at any time of the month." 
W. L. Owen, jr., who with S. L. Calhoun, L. C. Fife, anda 
Noble has been conducting life-history studies of the pink bollworm 
(Pectinophora gossypiella Saund.) at El Paso, Tex., summarizes the ovi- 
position records of 23 moths of the fourth generation as follows: 
Number of females) ig oon ee ee 25 
i Of fertile, Fomal ess. uis ac chee nye eee ae ee 20 
Percent fertile). ieee, ere: ee eee Sooo 
Average number eggs per fertile female... Lola 
Maximum i ¥ i y Dye shoes oas Gee ieee ae 434.0 
Average number eggs for 23 females\e. 5 5 lone 
Average longevity. for females (days)... 60.11.50 eee 14.2 
Maximum ¥ 1: 4H Mo Otay nk lo Rt a a eiLe 

