THE CANADIAN ENTOMOLOGIST 75 



before freezing weather is likely to set in, and his trees are rarely 

 troubled by the psyllid. This, however, may be only a coincidence. 

 This pest was evidently introduced into New Jersey on bay 

 trees imported from Belgium, as practically all of such trees come 

 from that country, and psyllid injured leaves are frequently noted 

 when the stock arrives. Inasmuch as many of the trees are later 

 shipped out of the State, it would not be strange if specimens of 

 Trioza aacris were turned up in other places, especially the Southern 

 States. Van Duzee in his " Check List of the Hemiptera of America, 

 North of Mexico," records it from California with lauri Targ., as a 

 synonym. 



ADDITIONS TO THE LIST OF MISSOURI CICADELLID^ 



(JASSOIDEA). 



EDMUND H. GIBSON, U. S. BUREAU OF ENTOMOLOGY. 



The following list of 25 species is offered as an addition to the 

 " Preliminary List of Jassoidea of Missouri with Notes on Species," 

 which was published by the writer in joint authorship with E. S. 

 Cogan in the Ohio Journal of Science for December, 1915, vol. 

 XVI, No. 2, pp. 71-78. H. L. Horsfall published an addition of 

 29 species in the same journal for May, 1916, vol. XVI, No. 8, 

 p. 53. The present paper brings the total number of species re- 

 ported from Missouri up to 152: 



Macro psis occidentalis Van D. Adults were swept from willows 

 at Charleston during May. 



Macropsis gleditschicE O. & B. Quite numerous during Ma\' 

 and June in southeastern counties. Captured principally from 

 locust trees. 



Macropsis tristis Van D. A specimen from central Missouri 

 is in the collection of the U. S. National Museum. 



Idiocerus ramentosus Uhl. Rather abundant on willows dur- 

 ing late spring and early summer months in Southeast Missouri. 



Idiocerus pallidus Fh. A few adults captured from an alfalfa 

 held at Branson, in the heart of the Ozark Mts. 



Idiocerus lachrymalis Fh. Occurs throughout the State, but 

 not abundant. 



February, 1917 



