4 University of Michigan 



Nehallcnnia ircnc Hagen. — This delicate metallic green spe- 

 cies was taken first on Jnly 6. Its color and small size make it 

 very inconspicuous among the long grasses at pond edges where 

 it seems to live exclusively. 



Nehallcnnia posita Hagen. — The species seems identical 

 V, ith the preceding in habits. 



Nehallcnnia yracilis Tslorse. — A single male taken on July 

 ^Tf, in company with the last species, is the only record. 



Bnailagnia calvcrti Morse. — This species was common dur- 

 ing the month, and was probably the most abundant represen- 

 tative of the genus. In common with all the species of the 

 genus it frequented the grassy and reedy edges of still water 

 to the exclusion of all other habitats. 



Bnailagnia hagcni Walsh. — This species is very similar in 

 habits to the above. 



Bnallagina carunculatmn Morse. — The above data applies 

 to this species. 



Bnailagnia ebriuni Hagen. — This species was found asso- 

 ciated with other members of the genus but did not appear till 

 July 23. 



Bnailagnia civile Hagen. — This form was common thruout 

 the month. 



Bnailagnia doiihledayi vSay. — This exceedingly quiet and re- 

 tiring species was recorded thruout the month, and was rarely 

 noted on the wing. 



Bnallagma piscinarinni Williamson. — A single male taken 

 Tuly 23 in the rank grass about a small pond was the only 

 record for the species. 



Ischnura verticaUs Say. — This single representative of the 

 genus was common thruout the month and was usually asso- 

 ciated with the i)receding genus. 



