Some species of bees restrict foraging to the twilight period before sunrise or after sunset. Among the plants sought by these nocturnal bees are species described as chiropterophilous, such as Caryocar brasiliense. The flowers of this species open in the evening and provide resources until dawn. We determined the pattern of flower visitation by nocturnal bees and their role in pollination and fruit set of C. brasiliense and evaluated its importance as floral resource for nocturnal bees. We analyzed the pollen composition of cell provisions of nocturnal bees of Ptiloglossa (Colletidae) and compared its scent with floral scent compounds of C. brasiliense. Moreover, we conducted a pollinator exclusion experiment to determine the contribution of nocturnal bees to its fruit set. Disregarding bats, Ptiloglossa latecalcarata and two species of Megalopta (Halictidae) were consistent nectar and pollen gathering visitors, along with some social diurnal bees. The visitor exclusion experiment revealed that bee visits do not result in fruit set, which only occurs through visits by bats. The flowers supply a significant amount of pollen for nocturnal bees, as demonstrated through pollen analysis of brood cells and scopa loads. This interaction, therefore, is only beneficial to the commensalist bees. The scent collected from brood cells was dominated by hexanoic acid and 1-hexanol and differed strongly from the floral scent of C. brasiliense. These results substantiate that bat-pollinated flowers are an important part of the food niche of nocturnal bees, which implies that they are sensorially equipped to recognize floral traits shaped by bats.

有些蜜蜂将觅食限制在日出之前或日落之后的暮光时期。在这些夜行性蜜蜂所寻求的植物中，有被描述为嗜手的物种，例如巴西Caryocar。该物种的花朵在晚上开放，直到黎明时才提供资源。我们确定了夜行性蜜蜂访花的模式，以及它们在巴西念珠菌授粉和坐果中的作用，并评估了其作为夜行性蜜蜂花卉资源的重要性。我们分析了夜蛾Petloglossa（Colletidae）的细胞结构的花粉组成，并将其气味与C. brasiliense的花香化合物进行比较。。此外，我们进行了授粉媒介排除实验，以确定夜间蜜蜂对其坐果的贡献。不顾蝙蝠，Ptiloglossa latecalcarata和两个物种的Megalopta（集蜂科）是一致的花蜜和花粉收集游客，一些社会日的蜜蜂一起。访客排除实验表明，蜜蜂的探访不会产生结实的果实，而结果只是通过蝙蝠的探访而发生。通过对巢细胞和可可脂负荷的花粉分析表明，这些花为夜间蜜蜂提供了大量的花粉。因此，这种相互作用仅对同志蜂有益。从巢细胞收集的气味以己酸和1-己醇为主导，与花的气味有很大差异。巴西利亚。这些结果证实蝙蝠授粉的花是夜行蜂食物生态位的重要组成部分，这意味着它们具有感觉上的能力，可以识别蝙蝠塑造的花卉特征。