11. Through his publications of 188 articles Guignot became a recognized expert on hydradephagan water beetles . 12. ""'Liocanthydrus armulatus " "'is a species of water beetle first found in the Neotropic ecozone. 13. In this they resemble the larvae of many other predatory water beetles , such as the Dytiscidae. 14. Some families of water beetles have fringed hind legs adapted for swimming, but most do not. 15. The primary diet items are water beetles , fish. 16. In Montmorency County, Michigan two more sites have yielded official records of Hungerford's crawling water beetles . 17. Her large collection of water beetles is today stored at Yale's Peabody Museum of Natural History. 18. They also contain the only Irish modern-day record of the cave-dwelling water beetle ( Agapus biguttatus ). 19. The birds share the peatlands with millions of insect-eating sundew plants, dragonflies, water beetles and red deer. 20. Physiological Activity Of Water Beetle Defensive Agents.