A NATURALIST IN THE GREAT LAKES REGION 



FIG. 178 FIG. 179 



FIGS. 178, 179: Fig. 178. Jaws 

 of nymph of Lestes forcipatus, after 



have very prominent eyes, a very large labium, and the abdomen 

 is scarcely narrowed at all until the ninth segment. There is a 

 black band between the eyes and a black band encircling each 

 femur. The adult Lestes is rather dull colored, 

 and when it rests, the wings are held as a rule 

 spread horizontally rather than folded over the 

 back, as other damsel flies hold 

 theirs. The full-grown dragon fly 

 of Tramea lacerta has a wing- 

 spread of nearly 4 inches. The 

 body is dark, almost black. The 

 upper surface of the abdomen 

 bears white or greenish spots. It 

 flies from June to September. 



Needham; Fig. 179. Nymph of C. eponina (Fig. 180) has a wing- 

 dragon fly, Celethemis eponina. spread of about 3 inches The 



thorax is red-brown with black stripes. The abdomen is black 



with yellow spots. The triangle is covered with a spot, and 



there are two bands, 



sometimes reduced to 



spots, on each wing. 



It also flies from June 



to September. 



Lamp sills luteola 

 (Fig. 181) has a 

 smooth shell with 

 distinct narrow green 

 rays. It is about 

 twice as long as high. 

 It is good sized, 

 usually 3-5 inches long and quite thick. The muscle scars and 

 cardinal teeth are plain on the inside of the shell. 



Alasmodonta marglnata (Fig. -182) is rayed with broad green 

 radiating lines. In outline it is quadrate, the posterior region 

 being truncate. The umbones are marked by three distinct 





FIG. 180. Adult dragon fly, Celethemis eponina. 

 After Needham. 



