Abstract The occurrence of Belminus laportei Lent, Jurberg & Carcavallo, 1995 (Hemiptera: Reduviidae: Triatominae) in French Guiana is reported for the first time. A triatomine specimen collected in Belizon, French Guiana was found to be a female of Belminus laportei, a species known so far only from Para State, Brazil. The discovery of this species broadens its known geographic distribution and increases the number of triatomines recorded from the French Guiana to fifteen.