diving beetle on ice pond

diving beetle rhantus notatusm dytiscidae melting ice surface reservoir hibernation dries wings settling fly predacious dytiscus animal aquatic organisms arthropod awakening nature moves bug common water crawling ecology entomology exoskeleton fearsome fierce flight time hydro cole hydrophilidae hydrous insect invertebrate mating oryctes nasicornis pest red scary shell smooth object spring vivid insects scavenger watertiger wild wildlife dispersing organism hydrobionts