452 Annals of the South African Museum. 



PLATE XII. 



FIG. 



1. Lestes virens. Nymph (European). 



2. Platycnemis pennipes. Nymphs (European). 



3. Gomphus pulchellus. Nymph (European). 



4. Anax imperator. Nymph (European). 



5. Orthetrum cancellation. Nymph (European). 



6. Sympetrum striolatum. Nymph (European). 



