Information on plants providing provisions (nectar and/or pollen) and nesting material for Megachile bees is fundamental for their conservation and habitat management to obtain optimal pollination services. Considering insufficient work reporting on these aspects in north India, studies were carried out to investigate the interactions between the plant species and the Megachile bees, through observing the adults foraging on the flowers and leaf-cutting activity on the leaves of plant species during regular visits. Observations on the leafcutter bees, viz. Megachile (Amegachile) bicolor Fabricius, Megachile (Eutricharaea) chlorigaster Cameron, Megachile (Aethomegachile) conjuncta Smith, Megachile (Callomegachile) relata Smith and Megachile (Eutricharaea) studiosa Bingham and five resin/mason bees - Megachile (Callomegachile) cephalotes Smith, Megachile (Callomegachile) disjuncta Fabricius, Megachile (subgenus - uncertain) inepta Cameron, Megachile (Pseudomegachile) lanata Fabricius and Megachile (Callomegachile) umbripennis Smith revealed that they interacted with 30 plant species for nectar/pollen and 19 plant species for leaf pieces from 17 plant families. The bees preferred the plants from the family Leguminosae for both provision and leaf pieces. Multiple interactions by different bee species were recorded for floral plants; however, the leafcutter bees had a distinctive choice in their leaf preferences while M. chlorigaster exhibited unusual behavior in using leaf types to build a nest. Megachile bicolor, M. disjuncta and M. cephalotes exhibited a wider range of plant interactions. Bee-plant interactions and their implications have been discussed. This study provides new information on the ecological requirements for nesting of Megachile bees which would be helpful in habitat management and developing effective tools for managed pollination.

有关为Megachile蜜蜂提供食物（花蜜和/或花粉）和筑巢材料的植物的信息对于它们的保护和栖息地管理以获得最佳授粉服务至关重要。考虑到印度北部关于这些方面的工作报告不足，通过在定期访问期间观察成虫在花朵上觅食和在植物物种的叶子上进行切叶活动，开展了研究，以调查植物物种与Megachile蜜蜂之间的相互作用. 对切​​叶蜂的观察，即。Megachile (Amegachile) 双色Fabricius, Megachile (Eutricharaea) chlorigaster Cameron, Megachile (Aethomegachile) conjuncta Smith,切叶蜂（Callomegachile）relata Smith和切叶蜂（Eutricharaea）studiosa宾厄姆和五个树脂/梅森蜜蜂-切叶蜂（Callomegachile）cephalotes史密斯，切叶蜂（Callomegachile）disjuncta法氏囊，切叶蜂（亚属-不确定）inepta卡梅伦，切叶蜂（Pseudomegachile）lanata法氏囊与Megachile (Callomegachile) umbripennis史密斯透露，他们与来自 17 个植物科的 30 种植物物种的花蜜/花粉和 19 种植物物种的叶片相互作用。蜜蜂更喜欢豆科植物的食物和叶子。记录了不同蜜蜂物种对花卉植物的多重相互作用；然而，切叶蜂对叶子的偏好有独特的选择，而M. chlorigaster在使用叶子类型筑巢时表现出不寻常的行为。Megachile bicolor、M. disjuncta和M. cephalotes表现出更广泛的植物相互作用。已经讨论了蜜蜂与植物的相互作用及其影响。这项研究提供了关于筑巢的生态要求的新信息Megachile蜜蜂，这将有助于栖息地管理和开发有效的授粉管理工具。