96 DRAGONFLIES OF NORTH AMERICA 
angle not meeting stripe 2; the latter is broader than the intervening yellow, is 
free above but is conjoined with 3 below, and only narrowly separated from it 
through most of its length. Stripes 4 and 5 narrow but continuous and well 
defined. Wings hyaline with black veins and stigma. Legs black. There are 
lanceolate yellow middorsal {basal triangles on abdominal segments 3 to 7; 8 
to 10 are black above; 7 to 9 are bright yellow at the sides. 
This species frequents the shores of the larger lakes and streams. 
Wilson (’99, p. 662) says that the banks of the river, with alternating 
reaches of sand and gravel seem peculiarly attractive to these dragon- 
flies. Muttkowski says that the males are hard to capture, since they 
persit in alighting amid the brush near the waters edge. 



ON /Alel 
Sn 
a, ele 
ventricosus 

dilatatus 

lineatifrons 
