1920] Barber— A 1919 Collection of Cicadellida 147 



It is interesting, therefore, to notice that the effect on sucking 

 insects is evidently not so marked for the accompanying list of 

 fifty-five species and varieties, representing twenty-six genera, 

 taken so unsystematically during but half of one season, cannot 

 nearly represent the total fauna, in this group, that are present. 



Two European species, Deltccephalus striatus Linn., and Allygus 

 mixtus Fabr., are herein reported both taken in the Town of Med- 

 ford. 



I am indebted to Mr. E. H. Gibson, U. S. National Museum, and 

 especially to Mr. D. M. DeLong of Harrisburg, Pa., for kind as- 

 sistance in determination of species unknown to me. 



Cicadellida. 

 Bythoscopina. 



1767 — Agallia sanguinolenta (Prov.). 



Medford, September 18; Everett, September 30. 

 1793 — Idiocerus scurra (Germ) . 



Cambridge, September 13. 



ClCADELLIN.«. 



1854 — Cicadella hieroglyphica (Say). 



Medford, August 26; Woburn, September 26. 

 1855 — Cicadella goihica (Sign). 



Woburn, September 25. 

 1859—Kolla bifida (Say). 



Medford, August 21-26. 

 1863 — Helochara communis Fitch. 



Medford, September 24; Woburn, September 26; Mel- 

 rose, November 11. 

 1864 — Graphocephala coccinea (Forst.). 



Woburn, August 20; Medford, August 26; Cambridge, 

 September 22. 

 1874 — Drcecidacephala mollipes (Say). 



Medford, August 20, 21, 26, September 18, October 15. 

 1879 — Droeculacephala noveboracensis Fitch. 



Medford, August 2l. 



