Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Donacia
- Donacia impressa
Images
Source: Roger Key
Source: Malcolm Greenwood
Description
Size: 6.8-8.4mm
Basic colour: Coppery or bronze, sometimes darker.
Pattern colour: None
Number of spots: None
Other colour forms: Rare
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Donacia simplex
, Confusion species: Donacia thalassina
Basic colour: Coppery or bronze, sometimes darker.
Pattern colour: None
Number of spots: None
Other colour forms: Rare
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Donacia simplex
, Confusion species: Donacia thalassina
Palaearctic, including North Africa.
Biology
Status: Widespread but scattered, though can be locally common. Scarce (Notable A).
Habitat: Sedges at the edge of water and wetlands.
Host plant: Various Cyperaceae (sedges and club-rush) and other wetland plants.
Overwintering: Unknown
Food: Adults on pollen of Cyperaceae, larvae on rhizomes and roots of common club-rush Schoenoplectus lacustris.
Habitat: Sedges at the edge of water and wetlands.
Host plant: Various Cyperaceae (sedges and club-rush) and other wetland plants.
Overwintering: Unknown
Food: Adults on pollen of Cyperaceae, larvae on rhizomes and roots of common club-rush Schoenoplectus lacustris.