BULLETIN 



OF THE 



BROOKLYN ENTOMOLOGICAL SOCIETY 



Vol. XVI April, 192 i No. 2 



ANOTHER EUROPEAN LEAFHOPPER IN NORTH AMERICA. 



By Chris E. Olsen, West Nyack, N. Y. 



In the early part of September, to be precise, on the second day 

 of the month, when Dr. E. D. Ball called at the American Mu- 

 seum of Natural History, he was very much elated over having 

 collected on a few Tamarisk plants in the Museum's backyard, 

 so to speak, a number of Eutettix oshorni, which species he had 

 described some years ago from specimens taken in Texas. He 

 informed me that thus far it was only known to occur in Texas 

 and California, also on Tamar'ix. Within a few days after that, 

 I had also secured a nice series for my own collection, from the 

 same trees. 



In trying to get the Tamarix sp. determined, I found that this 

 food-plant was a European introduction (it proved to be Tama.rix 

 gallica) . It then occurred to me that this leaf hopper might also 

 be imported from Europe, probably with the food-plant. In this 

 belief I was supported by Dr. Bequaert, who suggested that we 

 might communicate on this matter with some European workers 

 in this group, with whom we were now in touch and receiving 

 exchanges. Accordingly, a few specimens were sent to Mr. E. 

 de Bergevin, of Algiers, with a request to have them compared 

 with European leaf hoppers. 



About that time I received a box in exchange from Mr. V. 

 Lallem-and, of Brussels, Belgium, containing the same little leaf- 

 hopper but with quite a different name, not only specifically, but 

 also generically, namely Athysanus stactogalus Fieb. In due time 

 also I received a reply from Mr. E. de Bergevin, to whom I had 

 sent specimens of our supposed Eutettix oshorni. He also found 



