Megachile lanata

(Fabricius, 1775)

Woolly Wall Bee

Megachile lanata is a solitary leafcutter bee in the Megachilidae, described by Fabricius in 1775. It is considered an in Pakistan and has been introduced to regions including Colombia and Florida. The is an important of horticultural, ornamental, aromatic, and agricultural crops. Studies have documented its nesting in pre-existing cavities and its foraging activity across diverse landscapes.

Megachile lanata1 by USGS Native Bee Inventory and Monitoring Laboratory. Used under a Public domain license.Megachile lanata, female BIML USGS by USGS Bee Inventory and Monitoring Laboratory. Used under a Public domain license.Megachile lanata head by USGS Native Bee Inventory and Monitoring Laboratory. Used under a Public domain license.

Pronunciation

How to pronounce Megachile lanata: /ˌmɛɡəˈkaɪli ˈlænətə/

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Habitat

Agricultural landscapes, forests, urban areas, and natural ; specifically documented in agro- on the Pothohar Plateau, Punjab, Pakistan, and at an Agricultural Research Station in Vijayarai, Andhra Pradesh, India. Nests in pre-existing cavities, including artificial substrates with diameters of 0.8–1.0 cm.

Distribution

Native to the Old World; in Pakistan. Documented in Pothohar Plateau, Punjab, Pakistan; Vijayarai, Andhra Pradesh, India; also recorded in Colombia, Florida (USA), and across Africa, the Caribbean, North America, Oceania, and South America according to distribution records.

Seasonality

Active during 2021–2022 in Pakistan study; 2023–2024 in India study. Monthly collection efforts suggest year-round activity with seasonal fluctuations.

Diet

Pollen and nectar from floral plants; foraging activity observed across multiple crop types with differential visitation rates.

Life Cycle

Constructs linear series of in pre-existing cavities using leaf material and red earth.

Behavior

Exhibits distinct temporal foraging patterns with differential visitation rates across crops. Prefers mid-range substrate diameters (0.8–1.0 cm) for nesting. Solitary nesting with leaf-cutting and resin-collecting activities for construction.

Ecological Role

Important that increases yield and quality of horticultural, ornamental, aromatic, and agricultural crops. Contributes to health, particularly in agro-ecosystems.

Human Relevance

Valued as a crop in agricultural systems. status in Pakistan may pose ecological concerns.

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Sources and further reading