PLATE XOVIIL 



FIG. 1. Georyssus pygmaeus, F. 



2. Elmis seneus, Mull. 



3. Volkmari, Panz. 



4. parallelopipedus, Mull. 



5. Limnius tuberculatus, Mull. 



6. Macronychus quadritubevculatus, Mull. 



7. Potaminus substriatus, Mull. 

 7a. ,, ,, antenna. 



8. Parnus prolifericornis, F. 



9. auriculatus, Panz 



10. Heterocerus femoralis, Kies. 



11. laevigatus, Panz. 



12. fusculus, Kies. 



13. ,, sericans, Kies. 



