88 Journal New York Entomological Society. [Voi. v. 



ness of Dr. D. S. Kellicott, and Mr. P. P. Calvert has kindly under- 

 taken to revise the list and publish it in connection with his additions to 

 the list of Dragonflies of New York State : 



Calopteryx maculata Beauv. This pretty insect makes its home 

 in deep woods and in gullies among the hills where a rift in the foliage 

 admits the sunlight to the little pools that form along the hill-side 

 streamlets. Here they often congregate in great numbers on the bushes 

 overhanging the water. On the level country about Buffalo this species 

 is rarely seen and then only near water in the heaviest woods. 



Lestes uncata Kir by. June to August. I have taken this species 

 only in boggy woods where the water rarely if ever dries away during 

 the summer. In such situations it flies about the swampy openings 

 where the hot rays of the sun make the mosquitos lively and the collec- 

 tor miserable. 



Lestes rectangularis Say. Not common. Taken near deep 

 stagnant streams in August and September. 



Argia putrida Hageti. Through July and August this species is 

 common along some of our smaller creeks where a rapid current is bro- 

 ken by projecting stones. I have never seen it near still water as re- 

 corded by Dr. Kellicott. 



Argia violacea Hagen. Rare. Taken in company with the pre- 

 ceding species in August. 



Erythromma conditum Hagen. Taken flying over a ditch of 

 running water at Hamburgh, N. Y., in June. 



Amphiagrion saucium Biirjn. Common about swampy places 

 through July and August. 



Enallagma carunculatum Morse. Very abundant from late 

 June to September on Squaw Island in Niagara River and along the 

 shores of Lake Erie where the shallow water is overgrown with reeds. 



Enallagma hageni Walsh. Squaw Island, June nth, two ex- 

 amples. 



Enallagma exsulans Hagoi. Taken immature at Black Rock 

 Harbor about June ist, and mature, in July in a bog swamp at Clarence. 



Enallagma signatum Hagen. Numbers taken along a sluggish 

 creek north of Williamsville in September. 



Ischnura verticalis Say. This is the most abundant Agrion 

 about Buffalo. It occurs in immense numbers on Squaw Island and 

 along Niagara River and the shores of Lake Erie where fields of rushes 



