Cigarette Beetle vs common greasewort

Sphaericus velhocabrali compared with Aneura pinguis

Key Differences

Cigarette Beetle is Critically Endangered while common greasewort is Least Concern.

Taxonomic Classification

Rank	Cigarette Beetle	common greasewort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Marchantiophyta (liverwort)
Class	Insecta (Insects)	Jungermanniopsida (Jungermanniopsida)
Order	Coleoptera (Beetles)	Metzgeriales (Metzgeriales)
Family	Ptinidae	Aneuraceae
Genus	Sphaericus	Aneura
Species	Sphaericus velhocabrali	Aneura pinguis

Conservation Status

Cigarette Beetle

CR — Critically Endangered

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Cigarette Beetle	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cigarette Beetle

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Portugal. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

common greasewort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil, Colombia).

Cigarette Beetle

Sphaericus velhocabrali is a beetle in the family Colydiidae (or allied family), endemic to Portugal and classified as Critically Endangered by the IUCN. This species is known from extremely limited localities in the Iberian Peninsula and represents one of the most threatened coleopteran taxa in Europe. The genus Sphaericus comprises small, cylindrical bark beetles associated with decaying wood and fungal substrates in old-growth forests. Sphaericus velhocabrali likely inhabits ancient forest remnants in Portugal, where it is associated with dead and decaying timber of native hardwood trees. Its Critically Endangered status reflects an extremely small known range, very few known populations, and ongoing habitat loss from logging, land conversion, and the replacement of native forest with eucalyptus and pine plantations across much of Portugal. Veteran and ancient trees that provide suitable dead wood habitat have become rare in the intensively managed Portuguese landscape. Little is known about the detailed ecology, biology, or reproductive habits of this species, and population estimates are unavailable. Conservation action for this beetle depends on the protection of old-growth forest remnants and the promotion of veteran tree retention in Portuguese forests. Its discovery and description are relatively recent, highlighting the ongoing documentation of European invertebrate biodiversity.

common greasewort

<em>Aneura pinguis</em>, commonly known as common greasewort, is a liverwort belonging to the genus Aneura within the family Aneuraceae. This cryptogamic plant inhabits ecosystems across Asia, Europe, and North America, thriving in moist or waterlogged environments. Its range encompasses Taiwan in Asia, six European countries, the United States in North America, and Brazil and Colombia in South America, indicating a broad geographic distribution across multiple continents. Common greasewort is assessed as Least Concern on the IUCN Red List. The species typically forms flat, ribbon-like thalli in damp habitats such as stream banks, wet rocks, and boggy ground. Biological traits of this species remain poorly documented in the scientific literature.