Tesia is a genus of Old World warbler in the family Cettiidae.
The genus is from the Nepalese word Tisi for the grey-bellied tesia.

1/ Slaty-bellied Tesia/Warbler (Chích đuôi cụt, Tesia olivea)
2/ Grey-bellied Tesia/Warbler (Chích đuôi cụt bụng xám, Tesia cyaniventer)

The chestnut-headed tesia was formerly included in the genus. 
A molecular phylogenetic study found that the chestnut-headed tesia (Chích đuôi cụt bụng vàng) belongs to the genus Cettia, bush warbler. 
The species was moved but retained the same common name or sometimes referred to as Cettia castaneocoronata abadiei.