Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Phyllotreta
- Phyllotreta diademata
Images
Source: Lech Borowiec
Description
Size: 1.8-2.5mm
Basic colour: Shiny black
Pattern colour: None (antennal segments 2 & 3 reddish to brownish)
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Phyllotreta atra
, Confusion species: Phyllotreta punctulata
Basic colour: Shiny black
Pattern colour: None (antennal segments 2 & 3 reddish to brownish)
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Phyllotreta atra
, Confusion species: Phyllotreta punctulata
Palaearctic, including North Africa and northern India.
Biology
Status: Widely scattered in southern England, rare in Wales, not recorded from Scotland or Ireland.
Habitat: Various
Host plant: Many wild and cultivated Brassicaceae
Overwintering: As adults in moss, leaf-mould, bird's nests, and under bark.
Food: Adults on leaves, larvae at roots (both may damage crops)
Other notes: Adults parasitised by the braconid wasp Perilitus areolatus. Separated from P. atra & P. punctulata by head punctures and aedeagus.
Habitat: Various
Host plant: Many wild and cultivated Brassicaceae
Overwintering: As adults in moss, leaf-mould, bird's nests, and under bark.
Food: Adults on leaves, larvae at roots (both may damage crops)
Other notes: Adults parasitised by the braconid wasp Perilitus areolatus. Separated from P. atra & P. punctulata by head punctures and aedeagus.