Common Winter Damsel vs Hector’s Beaked Whale

Sympecma fusca compared with Mesoplodon hectori

Key Differences

• Common Winter Damsel is Least Concern while Hector’s Beaked Whale is Data Deficient.

Taxonomic Classification

Rank	Common Winter Damsel	Hector’s Beaked Whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Odonata (Odonata)	Cetacea (Whales & Dolphins)
Family	Lestidae	Hyperoodontidae
Genus	Sympecma	Mesoplodon
Species	Sympecma fusca	Mesoplodon hectori

Evolutionary Relationship

Common Winter Damsel and Hector’s Beaked Whale share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Winter Damsel

LC — Least Concern

Hector’s Beaked Whale

DD — Data Deficient

Physical Characteristics

Attribute	Common Winter Damsel	Hector’s Beaked Whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Winter Damsel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, and Sweden.

Hector’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Winter Damsel

<em>Sympecma fusca</em>, commonly known as the common winter damsel or common spreadwing, is a damselfly in the family Lestidae, classified as Least Concern by the IUCN. It is distributed across temperate Europe, with confirmed records from Belgium, Denmark, Luxembourg, and Sweden, and is one of the very few odonates in Europe that overwinters as an adult. This remarkable strategy distinguishes <em>Sympecma fusca</em> from most other damselflies, which overwinter in aquatic larval stages. Adults emerge in late summer, enter a reproductive diapause, and survive through autumn and winter by seeking sheltered terrestrial refugia such as dense vegetation, bark, or leaf litter. Mating and oviposition occur the following spring, typically from March onward. The species inhabits a range of standing and slow-moving freshwater habitats including ponds, marshes, ditches, and the margins of reed-fringed lakes, where larvae develop in aquatic vegetation. Like all lestid damselflies, adults hold their wings partly open at rest rather than folded over the abdomen as in most other damselflies. Biological traits including average adult lifespan, body length, and mass remain poorly documented in standardized databases, though the adult lifespan spanning overwintering can extend to several months. Ecologically, the common winter damsel contributes to freshwater invertebrate food webs as both a predatory adult and as aquatic larval prey for fish and other predators across its European range.