Dec, '06] ENTOMOLOGICAL NEWS. 359 



species which had taken shelter in the grass from the wind and 

 which I bagged by walking against the wind, dragging my 

 net through the grass. Ischnura vertiealis, Nehalennia ire?ie 

 and Enallagma hageni were abundant here. 



Many of my specimens are tenerals, which were very abund- 

 ant around the sloughs. The rapidity with which three or 

 four warm days were bringing out the dragonflies would indi- 

 cate that these sloughs would be teeming with dragonfly life 

 in a week or so of warm weather. 



The following is a list of the species of my collection as 

 determined by Mr. K. B. Williamson : 



Calopteryx maculata Beauvois. Nine males, seven females, 

 open woods along Elk Run ; quite abundant. 



Calopteryx czquabilis Say. Twenty-five males, 23 females ; 

 open woods along Elk Run in shady places. These 48 speci- 

 mens were taken in less than two hours. 



Hetcerina americana Fabricius. One male from the slough 

 near the mouth of Elk Run. 



Lestes unguiculatus Hagen. Ten males, nineteen females ; 

 abundant about slough near mouth of Elk Run. 



Lestes forcipatus Rambur. Two males. 



Lestes rectangularis Say. Five males, 1 female ; scarce, just 

 emerging ; slough north of Waterloo. 



Lestes uncatus Kirby. Thirteen males ; 14 females ; abund- 

 ant about slough near mouth of Elk Run. 



Nehalemiia irene Hagen. Twenty-one males; 15 females; 

 very abundant about slough near Elk Run. This species was 

 found near the ground or water in the grass where it had 

 probably taken shelter from the wind. 



Amphiagrion saucium Burmeister. Two males from the 

 slough at north edge of Waterloo. 



Enallagma hageni Walsh. Ninety-five males ; 15 females ; 

 individuals of this species more numerous than any of the 

 other 27 species ; most abundant about slough near mouth of 

 Elk Run. 



Enallagma ebrium Hagen. Six males from the slough north 

 of Waterloo. 



Itnallagma antennatum Say. Thirteen males ; seven fe- 



