Cliff Mining Bee vs Common Leaf Weevil

Andrena thoracica compared with Phyllobius pyri

Key Differences

• Cliff Mining Bee is Extinct while Common Leaf Weevil is Least Concern.

Taxonomic Classification

Rank	Cliff Mining Bee	Common Leaf Weevil
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Hymenoptera (Ants, Bees & Wasps)	Coleoptera (Beetles)
Family	Andrenidae	Curculionidae
Genus	Andrena	Phyllobius
Species	Andrena thoracica	Phyllobius pyri

Evolutionary Relationship

Cliff Mining Bee and Common Leaf Weevil share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Cliff Mining Bee

EX — Extinct

Common Leaf Weevil

LC — Least Concern

Physical Characteristics

Attribute	Cliff Mining Bee	Common Leaf Weevil
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cliff Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

Common Leaf Weevil

Habitat

Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and deserts and xeric shrublands within the Palearctic biogeographic realm.

Range

Found across Asia (4 countries) and Europe (33 countries).

Cliff Mining Bee

The Cliff Mining Bee, Andrena species in the family Andrenidae, is a solitary ground-nesting bee that excavates tunnels in cliff faces, earthen banks, and compacted sandy or loamy soils, where the loose or friable substrates exposed in cliff profiles provide ideal nesting conditions. Mining bees in the genus Andrena are among the most species-rich solitary bee genera in the world, with hundreds of species across the Holarctic region, many narrowly specialized in their choice of pollen host plants. Female cliff mining bees construct vertical or angled burrows in cliff faces, with lateral cells off the main shaft, each containing a pollen ball and a single egg. Males are typically smaller and emerge before females to establish territories near nesting sites. Many Andrena species are oligolectic, collecting pollen from only a small number of plant species, making their populations sensitive to the availability of specific flowering plants in the landscape surrounding nesting areas. Cliff and bank nesting habitats provide well-drained, sun-warmed substrates essential for brood development. The loss of natural cliff faces and earthen banks to development, vegetation succession, and quarrying reduces available nesting habitat for cliff mining bees.

Common Leaf Weevil

The Common Leaf Weevil (<em>Phyllobius pyri</em>) is a beetle in the family Curculionidae, classified as Least Concern on the IUCN Red List. It is native to four Asian countries and thirty-three European countries, giving it one of the broadest distributions of any weevil species in the Palearctic biogeographic realm. The species typically inhabits temperate coniferous forests, montane grasslands, shrublands, and deserts and xeric shrublands across its extensive range. Adults are typically covered in metallic green or bronze scales that give them a distinctive appearance. They feed on the foliage of a wide range of deciduous trees and shrubs, with larvae developing in the soil where they feed on roots. The Common Leaf Weevil is occasionally regarded as an agricultural and horticultural pest due to its feeding on fruit trees and ornamental plants. Its vast European and Asian range and generalist feeding habits support its Least Concern assessment. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden