Buff-tailed Mining Bee vs Clusterspike False Indigo

Andrena humilis compared with Amorpha crenulata

Key Differences

• Buff-tailed Mining Bee is Extinct while Clusterspike False Indigo is Critically Endangered.

Taxonomic Classification

Rank	Buff-tailed Mining Bee	Clusterspike False Indigo
Kingdom	Animalia (สัตว์)	Plantae (พืช)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Magnoliophyta (Flowering Plants)
Class	Insecta (แมลง)	Magnoliopsida (พืชใบเลี้ยงคู่)
Order	Hymenoptera (แตน)	Fabales (อันดับถั่ว)
Family	Andrenidae	Fabaceae
Genus	Andrena	Amorpha
Species	Andrena humilis	Amorpha crenulata

Conservation Status

Buff-tailed Mining Bee

EX — Extinct

Clusterspike False Indigo

CR — Critically Endangered

Physical Characteristics

Attribute	Buff-tailed Mining Bee	Clusterspike False Indigo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-tailed Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Clusterspike False Indigo

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Buff-tailed Mining Bee

The Buff-Tailed Mining Bee (Andrena humilis) is a species in the genus Andrena. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Clusterspike False Indigo

Amorpha crenulata, known as clusterspike false indigo or crenulate lead plant, is a critically endangered flowering shrub in the family Fabaceae with a highly restricted distribution confined to Miami-Dade County in southern Florida, USA. This species represents one of North America's rarest plants, with remaining populations numbering in the hundreds of individuals occurring in pine rockland habitat, an ecosystem itself ranked among the most imperiled in the United States. Pine rocklands are fire-dependent communities on exposed oolitic limestone, characterized by an open canopy of slash pine over diverse understory, and have been reduced to less than two percent of their historical extent by urban development in the Miami metropolitan area. Amorpha crenulata produces elongated spikes of small purple flowers typical of the genus and was historically more widespread across the Miami Rock Ridge before land development eliminated most habitat. Current populations exist primarily within Everglades National Park and a few private preserves. Its Critically Endangered status reflects the tiny remaining population, extreme habitat restriction, ongoing threats from urbanization, altered fire regimes, and sea-level rise that threatens low-elevation limestone habitats. Conservation efforts focus on habitat protection, controlled burning to maintain pine rockland structure, and ex situ seed banking.