136 References to the Figures. 



REFERENCES TO THE FIGURES IN TAB. VI. 



Fig. 1. Gerris laticaudata. 



2. Nympha. 



3. Head and antenna magnified. 



4. ApeY of abdomen magnified. 



5. Pangonia longirostris, magnified. 



6. Under viewofthe head magnified. 



*V' 



\ 



^i 



IX. The 



