A spacefaring trading species whose free traders served the Cardassians as discreet intermediaries, smuggling weapons to Cardassian colonists in the Demilitarised Zone during the troubles of 2370.
The Xepolites are a trading species known in the 2370s for hiring out their ships as go-betweens for the Cardassian Central Command.
They are seen in the Deep Space Nine episode The Maquis, Part II. Gul Dukat explains to Sisko that Cardassia has been arming its colonists in the Demilitarised Zone through third parties, and that the Xepolites are caught far less often than the Lissepians. Sisko and Dukat then intercept a Xepolite freighter commanded by Drofo Awa.
Awa insists that he is an honest free trader with nothing to hide, but Dukat bullies him into dropping his shields and surrendering his cargo of weapons, giving Sisko proof of the Central Command's involvement.