Anthracite Bee-fly vs

Anthrax anthrax compared with Cocconeis disculus

Key Differences

Anthracite Bee-fly is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Anthracite Bee-fly
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Arthropoda (節足動物)	Ochrophyta (オクロ植物)
Class	Insecta (昆虫)	Bacillariophyceae (クサリケイソウ綱)
Order	Diptera (ハエ目)	Achnanthales (Achnanthales)
Family	Bombyliidae	Cocconeidaceae
Genus	Anthrax	Cocconeis
Species	Anthrax anthrax	Cocconeis disculus

Conservation Status

Anthracite Bee-fly

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Anthracite Bee-fly
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Anthracite Bee-fly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

Anthracite Bee-fly

The Anthracite Bee-fly (Anthrax anthrax) is a species in the genus Anthrax. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Cocconeis disculus is a freshwater and brackish-water diatom in the family Cocconeidaceae, belonging to the class Bacillariophyceae—the diatoms, a group of unicellular photosynthetic algae encased in ornate silica cell walls called frustules. Like all members of the genus Cocconeis, C. disculus is an adnate, epiphytic species, meaning it lives attached to substrates—typically the surfaces of aquatic macrophytes, filamentous algae, and sediment particles—rather than living freely in the water column. The frustule of Cocconeis species is distinctive in its bilateral symmetry and the characteristic difference between its two valves: the rapheless valve (RV) lacks the raphe slit present on the raphe valve (RV), a feature used in species identification. Cocconeis disculus has been documented from freshwater bodies across South America and various parts of the Northern Hemisphere, with distribution reflecting its tolerance of a range of water temperatures and nutrient conditions. Diatoms like C. disculus are foundational components of aquatic food webs, fixing carbon through photosynthesis and providing a nutritious food source for grazing invertebrates, protists, and larval fish. The species also contributes to the biosilica cycle through the production and dissolution of its silica frustule. As a benthic, substrate-attached organism, Cocconeis disculus serves as a sensitive bioindicator of water quality conditions in freshwater monitoring programs. Its conservation status is not formally evaluated.