THE CICADELLID^ (JASSOIDEA-FAM. HOMOPTERA) 

 OF WISCONSIN, WITH DESCRIPTION OF NEW 



SPECIES. 



(With Two Plates). 



By J. G. Sanders, Harrisburg, Pa. 



and 



D. M. DeLong, O. S. U., Columbus, Ohio. 



Interesting facts are always brought forth, when com- 

 parisons are made of faunal groups of several states. The 

 insect fauna of Wisconsin has received but little attention in 

 the past, because of a lack of entomological work of any con- 

 siderable range in that state. For this reason it was not sur- 

 prising that thirteen distinct species new to science were found 

 in the limited group formerly known as the superfamily 

 Jassoidea, but lately changed by Mr. E. P. Van Duzee in his 

 list* to Cicadellidce. 



The Cicadellid faunas of four states east of the Mississippi 

 river have been fairly well determined, viz. : Maine, New York, 

 Tennessee and Wisconsin, and the following table shows at a 

 glance the relative abundance of species of several genera in 

 these regions. 



Cicadellinae, , . 

 Bythoscopinas 

 Deltocephalus 



Euscelis 



Phelpsius 



Thamnotettix. 

 Chlorotettix. . 



27 

 13 

 25 

 7 

 19 

 11 

 15 



The collection of material in this group has been carried 

 on since 1910 by the senior author, but the larger part of the 

 material was collected during the summer of 1916 by both 

 authors, while traveling over the state in nursery inspection 



*Check List of Hemiptera of Amer. N. of Mexico, New York Ent. Soc., 1916. 



79 



