58 
Result.—June 21, being ripened in perfect condition, so far as form 
and freshness are concerned. Was a very little smaller than No. 20. 
Insects all dead, except one, which was in last larval stage. 
NotE.—During June, 1885, three larve, to all appearances of the 
same species aS the preceding, took up their abode on a full-grown 
Crescent and remained there, voluntarily, until the latter was fully 
ripe, the young bugs being observed to feed upon the juices. No in- 
jury to the berry was in any way apparent. 
EXPERIMENT 22. 
Calocoris rapidus Say. 
June 8, confined four adults on as many heads of Fall Wheat, piacing 
two insects together upon each two heads of grain, and covering as with 
the berries. 
Result—June 24, kernels as plump as those ripening freely in the 
fields. The insects died some time between the 16th and 24th. 
EXPERIMENT 23. 
Huschistus fissilis Uhl. 
June 8, placed same number of adults upon same number of heads of 
wheat and in same manner as in Experiment 22. 
Result.—June 24, a few kernels badly shrunken, but these do not 
amount to over 6 per cent. Bugs now dead, but were alive up to the 
20th. 
EXPERIMENT 24. 
Tygus pratensis L. 
June 8, placed four adults as in the preceding experiment. 
Result.—June 24, kernels do not differ from those grown elsewhere in 
the field. One set of insects died on or about the 12th, the others 
between 16th and 20th. 
EXPERIMENT 25. ° 
Siphonophora avene Fab. 
June 8, placed a number of adult females on heads of wheat as in the 
preceding. $ 
Result—June 24, kernels shriveled, discolored, and nearly worthless, 
