In the Brazilian Amazon, the Araceae family is represented by several epiphytic, terrestrial and aquatic species. This family has a herbaceous stem, sometimes woody, short in terrestrial and palustrine species, long and climbing in epiphytes, with frequent calcium oxalate crystals. It comprises about 105 genera and approximately 3,300 species (GRAYUM, 1990; MAYO et al., 1997; COELHO, 2000). In a study carried out in Caxiuanã by Mascarenhas et al. (under publication), it was observed that the stem, leaves, inflorescences and fruits of this species are damaged by some insects, including caterpillars of Helicopis cupido Linneaus, 1758, nymphs and adults of Tetrataenia surinama Linneaus 1764, and nymphs of Tetratenia surinana Linneas, 1758. The stem of the plant is borne by larvae of the species Euthyma rodens, Tyranion sp and Heilipodus sp. and the galleries elaborated by these borers are invaded and/or occupied by several species of the family Formicidae. Despite their ecological importance and economic potential, studies on pollinator seuls) are unknown in Amazonia to date. As a result, this work aimed to determine the possible pollinating insects of Montrichardia linifera. The inflorescences were observed and collected for pollen grain analysis in two aningais. Upon arrival at the chosen points (aningais), it was carefully observed if there were any insects on the inflorescence, and when the presence of any was detected, they were collected and placed in vials. Inflorescences of the studied species were also collected for pollen grain analysis in the laboratory. The method used to determine pollen grain size was Erdtman's Acetolysis described by Erdtman (1952). Insects of the family Formicidae, Cynipidae, Forficulidae and Blattidae were found in the inflorescence of M. linifera. According to the method used in the analysis of the pollen grain of M. linifera, it was found that it is very small and that the pollination of this species is done through the wind íanernofilia).
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