2I 4 



I 'incinnati Society of Natural History. 



(7.) LlBELLULIN.K. 



49. Pantala flavescens Fabr. 



Columbus, September (Paul Fischer); October 6, 1894 

 (F. L. Landaere). 



50. Tramea Carolina Linne. 

 Columbus, September 6 ; Sugar Grove, September 4. 



51. Tramea lacerata Hagen. 

 Sandusky, June 26 to July 15, 1894. 



On Catawba Island, July 5, it was found in numbers about 

 a stream, the mouth of which was choked by a bar of peb- 

 bles washed up by the lake. Aquatics were abundant inside 

 the shelter, where the water was kept at a constant level by 

 currents through the bar. 



52. Libellula b as a lis Say. 



Our most abundant species of the genus. At Columbus, 

 from May 15 to September. On one occasion, at Sugar Grove, 

 it was plentiful, and a majority of those taken had the tips of 

 all the wings strongly infuscated. 



53. Libellula auripennis Burm. 



Ohio (Hagen). It must be every where rare ; I have seen 

 only one in the State. 



54. Libellula quadrimaculata Linne. 

 Columbus (Paul Fischer). Rare. 



55. Libellula semifasciata Burm. 

 Columbus, June. Not common. 



