Found 2 items, similar to Water bug.
English → English (WordNet) Definition: water bug water bug n 1: a true bug: large aquatic bug adapted to living in or on the surface of water 2: small light-brown cockroach brought to United States from Europe; a common household pest [syn: German cockroach, Croton bug, crotonbug, Blattella germanica]
English → English (gcide) Definition: Water bug Water bug \Wa"ter bug`\ (Zo["o]l.) (a) The Croton bug. (b) Any one of numerous species of large, rapacious, aquatic, hemipterous insects belonging to Belostoma, Benacus, Zaitha, and other genera of the family Belostomatid[ae]. Their hind legs are long and fringed, and act like oars. Some of these insects are of great size, being among the largest existing Hemiptera. Many of them come out of the water and fly about at night. [1913 Webster]