Chrysolina oricalcia (Müller, O.F., 1776)
Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Chrysolina > Chrysolina oricalcia
Images
Source:
Roger Key
Description
Size: 6.5-9.1mm
Basic colour: Dark blue, sometimes dark violet, very dark green, deep bronze or black with a bronze reflection.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Chrysolina haemoptera
Basic colour: Dark blue, sometimes dark violet, very dark green, deep bronze or black with a bronze reflection.
Pattern colour: None
Number of spots: None
Other colour forms: Sometimes
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Chrysolina haemoptera
Biology
Status: Widespread but Scarce (Notable B) and may be declining in some parts of England.
Habitat: Various
Host plant: Various Apiaceae such as cow parsley
Overwintering: Unknown location, but adults do overwinter.
Food: Adults feed on leaves and possibly pollen; larvae feed on leaves at night and in the evening.
Other notes: Similar to C. haemoptera. Pronotum trapezoidal with longitudinal furrows towards the sides. Elytral striae formed of sparse punctures.
Habitat: Various
Host plant: Various Apiaceae such as cow parsley
Overwintering: Unknown location, but adults do overwinter.
Food: Adults feed on leaves and possibly pollen; larvae feed on leaves at night and in the evening.
Other notes: Similar to C. haemoptera. Pronotum trapezoidal with longitudinal furrows towards the sides. Elytral striae formed of sparse punctures.
Articles
Ramsay, A.J. (2000). Chrysolina oricalcia (Müller, O.F., 1776) (Chrysomelidae) new to West Lothian. The Coleopterist 9(1): 45.