300 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 40. 



rior black spot. Legs colored as in first pair. Pterostigmas of 

 equal size aiul black on both front and hind ^vulgs. 



Abdominal segment 1 bluish green on sides, black on dorsal sur- 

 face, except a semicircular pure blue spot on apical end of dorsum; 



Figs. 83-84.— Lschnura perparva, tenerai. female. 8.?. Dorsal view. si. Lateral vieav. 



segment 2 black above, bluish green behnv; segments ?,-7 black 

 above, yellow below, except an interrui)ted narrow basal band on 

 segments 4-7; segments S and 9 pure blue, each with a rectangular 

 black spot at the anterior end of each side; segment 10 black above, 

 blue below. 



