The pollination of the terrestrial herb Irlbachia alata by the bat Glossophaga soricina was recorded in northeastern Brazil. This herb colonizes disturbed swampy sites in clearings and forest edges, blooming year-round. Its greenish white flowers open at dusk and attract phyllostomid bats and hawkmoths. The long-tongued bat Glossophaga soricina is the major pollinator of I. alata at the study site, with its trapline visits promoting cross-pollination of this herb. The small flowers and the delicate stem of I. alata match the small size and the manoeuverable flight of glossophagine bats.20941732231237