162 



The University Science Bulletin. 



FOURTH PAIR. 



In a large stender containing sandy loam, and labeled No. 7, was 

 placed a mating pair of bugs, June 28. Eggs were discovered in the 

 soil on July 8. July 13 nymphs hatched and the adults were re- 

 moved. July 20, 7 more nymphs were out. These 12 nymphs were 

 isolated in stenders and a tabular report of these follows. The in- 

 cubation period was somewhere between 7 and 15 days. 



