Check-list of Gerridae recorded from Bhutan with reference of first record

Subfamily Gerrinae:

Gerris (Macrogerris) gracilicornis (Horváth, 1879) (Andersen, unpublished catalogue) Limnogonus (Limnogonus) nitidus (Mayr, 1865) (present study) Neogerris parvulus (Stål, 1860) (present study)

Subfamily Eotrechinae:

Onychotrechus jaechi sp.n. (present study)

Chimarrhometra sp. (present study)

Subfamily Ptilomerinae:

Ptilomera (Proptilomera) himalayensis Hungerford & Matsuda, 1958 (present study) Ptilomera (Ptilomera) laticaudata (Hardwicke, 1825) (present study)

Subfamily Halobatinae:

Metrocoris compar (Buchanan–White, 1883) (Chen & Nieser 1993; confirmed by present study) Metrocoris nepalensis Distant, 1910 (present study)