water bug

US /ˈwɑː.t̬ɚ ˌbʌɡ/
UK /ˈwɑː.t̬ɚ ˌbʌɡ/
"water bug" picture
1.

serangga air, kumbang air

any of various insects that live in or on water, especially a large aquatic bug (family Belostomatidae) that can inflict a painful bite

:
I saw a large water bug swimming in the pond.
Saya melihat serangga air besar berenang di kolam.
Some people confuse cockroaches with water bugs.
Beberapa orang mengira kecoak adalah serangga air.