water bug
US /ˈwɑː.t̬ɚ ˌbʌɡ/
UK /ˈwɑː.t̬ɚ ˌbʌɡ/

1.
chinche de agua, insecto acuático
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.
Vi un gran chinche de agua nadando en el estanque.
•
Some people confuse cockroaches with water bugs.
Algunas personas confunden las cucarachas con los chinches de agua.