Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Psylliodes
- Psylliodes laticollis
Description
Size: 2.8-3.6mm
Basic colour: Dark blue, sometimes with a purple tinge
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour. Usually with rounded front angles slightly protruding at the front edge (compare with P. napi)
Leg colour: Yellow-orange, hind femora darkened.
Confusion species: Psylliodes napi
Basic colour: Dark blue, sometimes with a purple tinge
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour. Usually with rounded front angles slightly protruding at the front edge (compare with P. napi)
Leg colour: Yellow-orange, hind femora darkened.
Confusion species: Psylliodes napi
SW Palaearctic, including Macaronesia and North Africa.
Biology
Status: Widely scattered
Habitat: Various
Host plant: Usually on water-cress Rorippa nasturtium-aquaticum
Overwintering: As adults in moss and grass tussocks
Food: Adults on leaves, larvae within stems or as miners in leaf-stalks (petioles)
Other notes: Adults parasitised by a braconid wasp, probably Perilitus sp. Dissection of aedeagus may be needed to separate from P. napi.
Habitat: Various
Host plant: Usually on water-cress Rorippa nasturtium-aquaticum
Overwintering: As adults in moss and grass tussocks
Food: Adults on leaves, larvae within stems or as miners in leaf-stalks (petioles)
Other notes: Adults parasitised by a braconid wasp, probably Perilitus sp. Dissection of aedeagus may be needed to separate from P. napi.
Articles
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(2003), A further Scottish record of Psylliodes laticollis Kutschera (Chrysomelidae) The Coleopterist 12(3):110
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(1999), Psylliodes laticollis Kutschera (Chrysomelidae) from Aberdeenshire The Coleopterist 8(3):100