232 maine agricui.tur.-\l experiment station. i912. 



Literature. 



1909 Sulc, Dr. Karel. Casopisu (Ceske) Spolecosti Entomologicke, 



p. 102. Triosa cockerelli. 

 191 1 Crawford, D. L. American Psyllidae III, p. 448. Paratriosa 



cockerelli. 

 19x1 Johnson, S. Arthur. News Notes. The Tomato Psyllid. 



