water bug

n.

a true bug: large aquatic bug adapted to living in or on the surface of water

small light-brown cockroach brought to United States from Europe; a common household pest

同义词：German cockroachCroton bugcrotonbugBlattella germanica

Waterbug
Structure and Function of the Mouthparts and Salivary Gland Complex of the Giant Waterbug, Belostoma lutarium (Stål) (Hemiptera: Be...
Land and Water Bugs of the British Isles
Repeated copulation and sperm precedence: paternity assurance for a male brooding water bug.
Paternity assurance and altered roles in the mating behaviour of a giant water bug, Abedus herberti (heteroptera: Belostomatidae)
The salivary gland and salivary enzymes of the giant waterbugs (Heteroptera; Belostomatidae).
Male backspace availability in the giant waterbug (Belostoma flumineum Say)
Phylogenetic analysis of the true water bugs (Insecta: Hemiptera: Heteroptera: Nepomorpha): evidence from mitochondrial genomes.
Evolution of paternal care in the giant water bugs (Heteroptera: Belostomatidae)
The Evolution of Social Behavior in Insects and Arachnids: Evolution of paternal care in the giant water bugs (Heteroptera: Belostom...