2 I 2 



Cincinnati Society of Natural History. 



40. BaSI.KSCHNA JANATA Say. 



Central College, May 28; Sugar Grove, May 30. In both 

 cases they were just issuing from small, rapid streams among 

 precipitous hills. 



41. .Bschxa verticalis Hagen. 



Columbus, September and October, flying with Ai. con- 

 stricta. Only males distinguished. 



42. iEsCHNA CLEPSYDRA Say. 



Oberlin, attested by Mr. Lynds Jones. I have not taken it 

 in the State, but have done so in central Michigan. 



43. iEsCHNA CONSTRICTA Say. 



Occurs wherever I have collected in the State. Common in 

 September and in October, until after killing frosts. 



44. Anax Junius Drury. 



Common throughout the State. It is the first dragonfly 

 abroad in early Spring, and remains with us until the middle 

 of October. This year (1894), it was plentiful along an old 

 river bed on the State University grounds, on March 21. Sev- 

 eral pairs were seen on this date, flying about in union, ovi- 

 positing. In this case, the pair rested low down on old Typha 

 stalks, while the eggs were placed in the soft tissues beneath 

 the water. On March 23 it turned cold, and remained so 

 until April 15. On the 16th, Anax was again abroad, appar- 

 ently uninjured by frost, ice and snow of the preceding three 

 weeks. 



I have many times noted the males flying their usual beats 

 until so late in the evening that they w T ere scarcel3 T discern- 

 ible in the faint twilight. 



