87 
*Date. 
Young. 
Adult wingless 
females. 
Pupae. 
Winged 
females. 
June 26 
Smartweed in corn 
field. 
Smartweed in corn 
field. 
June 29 
Panicum. 
June 30 
Timothy in corn 
field. 
Timothy in corn 
field. 
July 3 
Timothy. 
July 13 
Setaria, Panicum, 
and corn. 
Setaria, Panicum, 
and corn. 
Setaria, Panicum, 
and corn. 
July 15 
Setaria in corn 
field. 
Setaria in corn 
field. 
Setaria in corn 
field. 
Setaria in corn 
field. 
July 25 
Sorghum. 
July 28 
Corn roots. 
Corn roots. 
July 31 
Sorghum and Pani-' 
cum. 
Sorghum and Pani¬ 
cum. 
Aug. 4 
Panicum and corn. 
Panicum in sor¬ 
ghum field. 
Panicum in sor¬ 
ghum field. 
Aug. 11 
Gras*. 
Grass and sor¬ 
ghum. 
Oct. 2 
Sorghum. 
Oct. 1C 
Grass. 
Oct. 12 
On sorghum roots. 
• 
Oct. ’ 2C 
Corn in breeding 
cage. 
Nov. 2 
Lasius burrows ix 
corn field. 
From the above table we learn that this grass root louse has 
been found by us on corn ten times, as follows: May 23, June 
13 (twice), 17, 23, 25, July 13, 28, August 4, and October 20 
(in breeding cage). Other plants from the roots of which it has 
been taken are as follows: sorghum (five times) July 2.), 31, 
August 11, and October 2 and 12; timothy (twice) June 30 and 
July 3; blue-grass (once) June 25; grass (seven times) May 24, 
