Oulema obscura (Stephens, 1831)
Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Oulema > Oulema obscura
Description
Size: 3.0-4.2mm
Basic colour: Metallic blue, sometimes greenish or almost black.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Oulema erichsoni
, Confusion species: Oulema septentrionis
Basic colour: Metallic blue, sometimes greenish or almost black.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Oulema erichsoni
, Confusion species: Oulema septentrionis
Biology
Status: Widespread and common
Habitat: Various
Host plant: Various, especially grasses and cereals.
Overwintering: Adults overwinter from September, in and under tussocks.
Food: Leaves of Poaceae
Other notes: Similar to O. erichsoni and O. septentrionis, but elytra less elongate (1.25 times as long as wide, compared with 1.30-1.45 in the other two species).
Habitat: Various
Host plant: Various, especially grasses and cereals.
Overwintering: Adults overwinter from September, in and under tussocks.
Food: Leaves of Poaceae
Other notes: Similar to O. erichsoni and O. septentrionis, but elytra less elongate (1.25 times as long as wide, compared with 1.30-1.45 in the other two species).