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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 49. 



Upper half of mesinfraepisternum black. Middorsal stripe broad. 

 Humeral stripe broad and widening below into a large rectangular 

 spot on anterior end of mesepimeron. Second lateral suture with a 

 narrow black line. Femora brown as in the lighter individuals. 



Figs. 120-121.— Ischnura cervula, nymph. 

 Fig. 122.— Ischnura perparva, nymph. 



Abdomen same as in the lighter colored females except that the 

 dorsum of segments 9 and 10 may be black. (Fig. 107.) Figure 118 

 shows one of these females in a late teneral stage, when eyes and 

 femora are turnino; })hick. 



