H. Terminalis is among nine newly identified bee species which are described in a study published in the journal Zootaxa.
Tourism Fiji is investigating after it posted the video on Facebook and Instagram.
Rugby sevens will be part of the Games for the first time in Brazil.
Authorities have warned of "catastrophic" damage to Koro Island, Fiji's seventh-largest island.
Forty-three peacekeepers were safely rescued but UN sources say dozens remain trapped