Azorean predacious diving beetle vs

Agabus godmanni compared with Chrysococcus punctiformis

Key Differences

• Azorean predacious diving beetle is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Azorean predacious diving beetle
Kingdom	Animalia (प्राणी)	Chromista (Chromista)
Phylum	Arthropoda (सन्धिपाद)	Ochrophyta (Ochrophyta)
Class	Insecta (कीट)	Chrysophyceae (स्वर्णिम शैवाल)
Order	Coleoptera (वर्मपंखी गण)	Chromulinales (Chromulinales)
Family	Dytiscidae	Dinobryaceae
Genus	Agabus	Chrysococcus
Species	Agabus godmanni	Chrysococcus punctiformis

Conservation Status

Azorean predacious diving beetle

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Azorean predacious diving beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azorean predacious diving beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

Azorean predacious diving beetle

The Azorean predacious diving beetle (Agabus godmanni) is a species in the genus Agabus. It is currently classified as Endangered on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Chrysococcus punctiformis is a unicellular freshwater chrysophyte microalga in the genus Chrysococcus, class Chrysophyceae. The specific epithet punctiformis — meaning point-shaped or dot-like — likely references the diminutive size of this species relative to other Chrysococcus species, or alternatively describes a distinctive punctate surface pattern on the lorica visible under microscopy. In Chrysococcus, the lorica is the primary taxonomic structure, and its form, texture, and any ornamentation distinguish species from one another. C. punctiformis has been recorded from Norwegian and Swedish freshwater environments, extending also to Brazilian localities. This broad distribution spanning subarctic Scandinavian lakes and tropical or subtropical South American water bodies suggests either genuine cosmopolitan dispersal of this species through passive mechanisms, or convergent morphological evolution that has been misidentified as the same taxon in different regions. Molecular phylogenetic data would help resolve this question. The species inhabits the limnetic zone of freshwater systems, where it functions as a primary producer and component of the nanoplankton community. Chrysococcus species are characteristic members of oligotrophic lake phytoplankton in Scandinavia, often co-occurring with other chrysophytes, diatoms, and chlorophytes. C. punctiformis uses chlorophylls a and c along with fucoxanthin for photosynthesis and may practice mixotrophic nutrition. It has not been assessed under IUCN criteria and is listed as Not Evaluated.