Vol. XXXl] ENTOMOLOGICAL NEWS 45 



In July, 1911, while collecting in the valley of the St. Croix 

 River in Chisago County, Minnesota, a small area embracing 

 only a few square yards w r as encountered in which specimens 

 of Otiocerus degeeri Kirby, 0. abbotti Kirby, 0. coquebertii 

 Kirby and Amaloptera uhleri VanD. were taken. No derbids 

 were taken at any other place during the trip and this parti- 

 cular spot differed in no essential particular from much of the 

 ground covered. 



The next and most striking example was seen at De Witt, 

 Mitchell County, Georgia. The banks of the Flint River in 

 this region are lined by timber for a distance varying from a 

 hundred feet to several hundred yards from the margin. At 

 one point a partial clearing had been made from the timber 

 edge to about one-half way to the river, a distance of perhaps 

 fifty feet. This clearing covered an area of from fifteen to 

 twenty square yards. It had become overgrown with vari- 

 ous weeds, shrubs and some rather young second growth tim- 

 ber. 



In this clearing, on two consecutive days, July 23-24, 1912, 

 the following Delphacinae were taken : Phyllodinus flabellatus 

 Ball, Liburniella ornata Stal, Amaloptera fitchii VanD., Cen- 

 chrea uhleri Ball, Oecleus sp., Dictyophora florens Stal, Thionia 

 bullata Say, Acanalonia conica Say, A. bivittata Say, Ormenis 

 pruinosa Say, 0. septentrionalis Spin., Pissonotus brunneus 

 Vand. var (?). 



A visit was paid to this same spot the following year when 

 most of the species were again taken. The most conspicuous 

 difference noted was the total lack of specimens of Phyllodi- 

 nus flabellatus Ball which were very abundant the previous 

 year. 



Other clearings, apparently similar to this one and only 



short distances from it, lacked all or most of these species. 



In my notes I designated this spot "Fulgorid Haven" and 



many subsequent trips were made to it. The majority of the 



pecies were again collected on these later trips. 



Again at Thomasville, Georgia, a small locality rich in 

 species of Delphacinae was found. Here a small stream 

 widened into a pond with swampy banks, the banks rising 



