Occasional Papers of the Museum of Zoology 3 



I wish to acknowledge my indebtedness to Dr. E. H. Walk- 

 er and to Mr. C. H. Kennedy for the determination of the 

 Somatochloras, and to Mr. E. B. Williamson for assistance 

 with several other forms. 



LIST OP SPECIES. 



Suborder ZygopTEra. 



Family Calopterygidae. 



Caloptcryx uiaculata Beauvois. — The species was abundant 

 and was widely distributed. It was seen thruout the month, 

 most commonly along paths and roads in the woods, rarely in 

 tlie open and never in abundantly lighted places. The flight is 

 noticeably weak and irregular. Copulating pairs were taken on 

 July 10. The females outnumbered the males thruout the 

 month. 



Caloptcryx acquahUis Say. — This species was somewhat less 

 numerous than the preceding. It was closely associated with 

 the river, and most often noted in groups of four or five to 

 twenty. Individuals gathered in the sunlight at the foot of 

 steep banks along the river, and seemed on the whole rather 

 inactive. The species seemed to increase in abundance thruout 

 the month. 



Family Agrionidae. 



Lcstcs uucafiis Kirby. — This species was found with the 

 two following forms, and was rather rarer than either. 



Lcstcs rcctangularis Say. — A quite common species which 

 preferred the thick, dark woods. It was never seen in the open 

 nor about water. The first specimen secured was an immature 

 male taken July 15. The males outnumbered the females. 



Lcstcs disjuiictus Selys.- — Like the preceding forms of the 

 genus, this species frequented the thick woods and was rarely 

 seen in the open. 



