Leafcutter bee is the most efficient pollinator for alfalfa seed production.

苜蓿切叶蜂是为苜蓿授粉最有效的昆虫。

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He became fascinated by the leafcutter ants but was somewhat frustrated to discover that they cut the leaves only at night.

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Leafcutter ants diligently march by in long lines, carrying greenery on their backs, creating the illusion that the leaves are walking by themselves.

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Hovering around city parks and flower beds are masked bees, miner bees, mason bees, plasterer bees, cuckoo bees, leafcutter bees, horned bees, and at least 49 species of sweat bees.

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