Chaetocnema sahlbergii (Gyllenhal, 1827)
Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Chaetocnema > Chaetocnema sahlbergii
Description
Size: 1.8-2.3mm
Basic colour: Metallic blue, sometimes blue-black or violet, or greenish-brassy, or with pronotum greenish or bronze and elytra blue.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Basic colour: Metallic blue, sometimes blue-black or violet, or greenish-brassy, or with pronotum greenish or bronze and elytra blue.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Biology
Status: Very local around the coast. Scarce (Notable A)
Habitat: various coastal habitats
Host plant: Sedges, rushes, sea-milkwort (Glaux maritima)
Overwintering: Probably as adults.
Food: Unknown, though adults assumed to be leaf-feeders
Other notes: Palaearctic and can be inland outside Britain, including at altitudes over 1000m.
Habitat: various coastal habitats
Host plant: Sedges, rushes, sea-milkwort (Glaux maritima)
Overwintering: Probably as adults.
Food: Unknown, though adults assumed to be leaf-feeders
Other notes: Palaearctic and can be inland outside Britain, including at altitudes over 1000m.