242 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 12 



by pieces of shingle driven into the ground and nailed to the boards. 

 Common tin cans were buried with the tops level with the surface of the 

 ground and against the boards, both inside and outside the barrier. 

 On the inside a can was placed at each corner and twelve cans were 

 placed at intervals along each side. The same number of cans were 

 put on the outside in the corresponding locations. Fifty-six cans were 

 used altogether. 



A record of the collections follows. Counts were made from June 

 4 until June 22, making a total of 371 beetles from the inside and 1,414 

 from the outside. 



Table Showing Number of L.farda Caught in Barrier No. 6 



Total 371 1,043 1,414 



Lachnosterna cribrosa 



The first report of damage by this species was received on April 25, 

 1918, from Mr. Albert Gembler who has a farm about ten miles south- 

 east of San Antonio on the Gohad road. The writers visited this farm 

 and found these beetles there in very large numbers. The field where 

 damage occurred comprises about seventy acres. The soil is loose, 

 sandy loam upland and slopes toward the west and south. There is a 

 strip of brush on the north side and cultivated fields on all the other 

 sides of this field. Cotton was planted in this field and there was a 

 good stand of young plants with from two to four leaves when the 

 outbreak started. The beetles had started work in the highest part of 

 the field and had destroyed the cotton plants in a sohd patch of about 

 fifteen acres. The devastated area was roughly circular in shape and 

 it appeared that the beetles had matured in this part of the field. 



