Brownfish vs Common Mourning Bee

Actinopyga echinites compared with Melecta albifrons

Key Differences

• Brownfish is Vulnerable while Common Mourning Bee is Not Evaluated.

Taxonomic Classification

Rank	Brownfish	Common Mourning Bee
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Arthropoda (Arthropods)
Class	Holothuroidea (Holothuroidea)	Insecta (Insects)
Order	Holothuriida (Holothuriida)	Hymenoptera (Ants, Bees & Wasps)
Family	Holothuriidae	Apidae (Bees)
Genus	Actinopyga	Melecta
Species	Actinopyga echinites	Melecta albifrons

Evolutionary Relationship

Brownfish and Common Mourning Bee share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brownfish

VU — Vulnerable

Common Mourning Bee

NE — Not Evaluated

Physical Characteristics

Attribute	Brownfish	Common Mourning Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brownfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Common Mourning Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, and Sweden.

Brownfish

The Brownfish (Actinopyga echinites) is a species in the genus Actinopyga. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Common Mourning Bee

<em>Melecta albifrons</em>, the common mourning bee, is a solitary bee in the family Apidae, tribe Melectini. This species is a cleptoparasite, meaning it lays its eggs in the nests of other bee species rather than constructing its own nests or provisioning them with pollen. <em>Melecta albifrons</em> typically targets the nests of mining bees in the genus Anthophora, which are ground-nesting species common across Europe. The mourning bee is named for its dark, somber coloration punctuated by white or pale hair patches, giving it a distinctive appearance. Its geographic range includes temperate Europe, with recorded occurrences in Belgium, Denmark, Luxembourg, and Sweden, typically in habitats where its Anthophora hosts are present, including gardens, hedgerows, meadows, and areas with bare sandy or clay soils. The species has not been formally evaluated under the IUCN Red List framework. Biological traits such as lifespan, body size, and diet remain poorly documented for this species beyond its known cleptoparasitic behavior. Conservation of <em>Melecta albifrons</em> is closely linked to maintaining healthy populations of its host bee species, and broader pollinator-friendly habitat management.