Cliff Mining Bee vs Common Spruce Bell

Andrena thoracica compared with Epinotia tedella

Key Differences

• Cliff Mining Bee is Extinct while Common Spruce Bell is Least Concern.

Taxonomic Classification

Rank	Cliff Mining Bee	Common Spruce Bell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Hymenoptera (Ants, Bees & Wasps)	Lepidoptera (Butterflies & Moths)
Family	Andrenidae	Tortricidae
Genus	Andrena	Epinotia
Species	Andrena thoracica	Epinotia tedella

Evolutionary Relationship

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

Conservation Status

Cliff Mining Bee

EX — Extinct

Common Spruce Bell

LC — Least Concern

Physical Characteristics

Attribute	Cliff Mining Bee	Common Spruce Bell
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 Spruce Bell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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 Spruce Bell

<em>Epinotia tedella</em>, commonly known as the common spruce bell, is a small tortrix moth in the family Tortricidae, distributed across Europe wherever its primary host plant, <em>Picea abies</em> (Norway spruce), occurs. This species typically inhabits spruce forests, forest plantations, and woodland edges with significant spruce components, from lowland areas to montane elevations throughout much of the European continent. Its geographic range extends from Scandinavia and the British Isles south through central and eastern Europe, broadly following the distribution of its conifer hosts. Classified as Least Concern on the IUCN Red List, <em>Epinotia tedella</em> maintains stable populations across its range and is not considered threatened. The larvae feed internally within the needles of <em>Picea</em> species, mining leaf tissue and occasionally causing noticeable damage during outbreak years in plantation forestry. Adults are small moths with a wingspan of approximately 12–16 mm, displaying forewing patterns of brownish-grey with silvery strigulae typical of the genus. The species produces one generation per year, with adults flying from late spring to midsummer. Biological traits such as average lifespan in years, precise body weight, and detailed population dynamics remain poorly documented for this minor forestry pest. Diet consists primarily of Norway spruce needle tissue during the larval stage.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden