From 1790, she served in various diplomatic missions in the Indian Ocean, before returning for a refit in Brest in 1793.

She took part in the Invisible Squadron of Zacharie Allemand, before returning to Martinique along with the 16-gun brig Lynx.

(The Chroniques de la Marine Française report that in 1807, Thétis captured an 18-gun brig named Methly.

[3] This may be a slightly garbled reference to the capture of Netley, there being no Royal Navy vessel named Methly.)

[4] British casualties in the engagement were severe, with 19 killed and 51 wounded, but French losses were several times larger, with 135 dead, including her commander, Capitaine de Vaisseau Jacques Pinsum, and 102 wounded.