New and little-known species of Ploiaria (Hemiptera: Reduviidae: Emesinae) from southeastern Asia

Ploiaria hamulosa n. sp. is described and illustrated based on specimens from northern Laos. This new species is characterized by the relatively long anteocular region of the head, the presence of a long erect seta on the fore trochanters, the elongate pygophore, and the strongly curved and barb-bearing parameres. Based on the examination of the holotypes, Lhostella rondoni Dispons, 1965 and Ploiaria maldonadoi Baena, 1992 are considered as junior synonyms of Ploiaria mellea McAtee & Malloch, 1926. The genus Ploiaria Scopoli, 1786 is recorded from Laos for the first time.