194 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



Like illinoiensis, tliis species was found the' entire length of the 

 river below Burnside, not numerous at any one place, but evenly 

 distributed throughout. 



13. SOMATOCHLORA TENEBROSA (Say). 



A single female was captured near the Big South Fork, opposite 

 Parkers Lake post office, July 9. Ten or a dozen specimens of this 

 species were patrolling back and forth just after sunset in one corner 

 of an old pasture near a small brook at the foot of the mountains. 

 They were strong and rapid fhers and extremely difficult to capture. 

 They moved gracefully up and do^vn and in and out, weaving together 

 their paths of flight like the intricate mazes of an old-fashioned 

 dance. But never for an instant could they be caught off their 

 guard. At the first attempt of the net they all retired precipitately, 

 and it was a long time before they returned again. This is a northern 

 species and its presence in Kentucky is probably explained b}^ the 

 high altitude of the region where it was found and the proximity of 

 the mountains. 



14. EPICORDULIA PRINCEPS (Hagen). 



A single specimen of this species was seen on the afternoon of 

 July 20 near Burkesville, Kentucky. It suddenly appeared, appar- 

 ently from nowhere, and alighted on the boat \\'i thin -arm's length of 

 the author; but, of course, at the first movement it was gone, and it 

 did not return. 



15. ANAX JUNIUS (Drury). 



Several specimens were seen at long intervals, one at Indian Creek 

 Landing, July 15; another at Sandersville Ferry, just above Nash- 

 ville, Tennessee, August 18; a third at Lock No. 5, Wilson County, 

 Tennessee; and a fourth near Clarksville, Tennessee, August 27. 



Each was patrolling the bank of the river, but none of them was 

 captured. 



16. PANTALA HYMENiEA (Say). 



A male and female were captured at the Great Falls, July 7. They 

 were very common around the falls and congregated inconsiderable 

 numbers over the swift v/ater after sunset. They fly rapidly and 

 are agile dodgers. Apparently they never alight except for the 

 night, but continue moving about restlessly and' eatuag whatever 

 they catch while still flying. One could often be seen to catch an 

 insect and eat it while looldng for more. 



Occasionally one would mount spirally into the air until lost to 

 view, and of course it was impossible to tell whether that one came 

 back again to continue the hunt; but at all events the numbers did 

 not diminish until they all disappeared at about the same time. 

 This species was also seen at various places along the v/hole length 

 of the river. 



