Plate XI 



Hydrobius globosus Say 



Fig. 1. Left mandible, first stage larva. 



Fig. 2. Labium, dorsal view, first stage larva. 



Fig. 3. Right mandible, first stage larva. 



Fig. 4. Right mesothoracic leg, first stage larva. 



Fig. 5. Right maxilla, first stage larva. 



Fig. 6. Anterior region of head, dorsal view, first stage larva. 



Fig. 7. Right antenna, first stage larva. 



Fig. 8. Egg-case. 



Fig. 9. Full-grown larva, dorsal view. 



