Orsodacne cerasi

Size
4.5-6.4mm
Basic colour
Yellowish through brownish to black - highly variable and the elytra may or may not be the same colour as the pronotum.
Pattern colour
Usually none, though if the elytra is pale, the suture may be darkened.
Leg colour
Yellowish to brownish

Korynetes caeruleus

Taxonomy

  • Polyphaga
  • Cleroidea
  • Cleridae
  • Korynetes
  • Korynetes caeruleus

Description

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Orsodacne humeralis

Taxonomy

  • Polyphaga
  • Chrysomeloidea
  • Orsodacnidae
  • Orsodacne
  • Orsodacne humeralis

Description

Size: 4.4-7.9mm
Basic colour: Yellowish through brownish to black - highly variable and the elytra may or may not be the same colour as the pronotum.
Pattern colour: Usually none, though if the elytra is pale, the suture may be darkened.
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Orsodacne cerasi

Western Palaearctic, including Morocco and Iran.

Biology

Status: Widespread in south and SE England, an old record from Scotland, not recorded from Wales or Ireland. May have declined. Scarce (Notable B).
Habitat: Various
Host plant: Various herbaceous plants, and often hawthorn, also birch saplings and cypress.
Overwintering: Uncertain, but probably as 1st instar larvae within oak buds.
Food: Adults on pollen, larval feeding unknown.
Other notes: Dosrally with fine, dense pubescence and coase punctures; elytral interstices shiny.

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Orsodacne cerasi

Taxonomy

  • Polyphaga
  • Chrysomeloidea
  • Orsodacnidae
  • Orsodacne
  • Orsodacne cerasi

Description

Size: 4.5-6.4mm
Basic colour: Yellowish through brownish to black - highly variable and the elytra may or may not be the same colour as the pronotum.
Pattern colour: Usually none, though if the elytra is pale, the suture may be darkened.
Number of spots: None
Other colour forms: Many and common
Pronotoum: As basic colour
Leg colour: Yellowish to brownish
Confusion species: Orsodacne humeralis

Western Palaearctic.

Biology

Status: Widespread and locally common in England and Wales, not recorded from Scotland or Ireland.
Habitat: Mixed or deciduous woodland
Host plant: Various trees and shrubs.
Overwintering: Unknown.
Food: Adults on anthers and pollen, especially of white flowers. Larval feeding unknown/uncertain.
Other notes: Dorsally almost hairless, with diffuse punctures and dull elytral interstices.

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Zeugophora turneri

Taxonomy

  • Polyphaga
  • Chrysomeloidea
  • Megalopodidae
  • Zeugophora
  • Zeugophora turneri

Description

Size: 3.2-3.6mm
Basic colour: Yellowish
Pattern colour: None
Number of spots: None
Pronotoum: As basic colour
Leg colour: As basic colour

Palaearctic.

Biology

Status: Scattered; Scotland only. Scarce (Notable A).
Habitat: Broad-leaved woodland.
Host plant: Young aspen and birches.
Overwintering: As adults.
Food: Adults on leaves, larvae are leaf-miners.

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Zeugophora subspinosa

Taxonomy

  • Polyphaga
  • Chrysomeloidea
  • Megalopodidae
  • Zeugophora
  • Zeugophora subspinosa

Description

Size: 2.7-3.5mm
Basic colour: Elytra black.
Pattern colour: None
Number of spots: None
Pronotoum: Orange-yellow
Leg colour: Orange-yellow

Western Palaearctic.

Biology

Status: Widespread and locally common in England, scattered in Scotland and south Wales, recorded in Ireland (Co. Clare) in 1971. Not current categorisation though possibly declining, and previously listed as Scarce (Notable B).
Habitat: Various
Host plant: Aspen and other poplars, also willows
Overwintering: As adults
Food: Adults on leaves (largely of saplings) leaving behind a perforated network of veins; larvae are leaf miners forming black blotches.
Other notes: Head orange-yellow. Leaf-mining larvae parasitised by the pimpline ichneumon Scambus inanis and the braconid wasp Meteorus brevicauda.

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Zeugophora flavicollis

Taxonomy

  • Polyphaga
  • Chrysomeloidea
  • Megalopodidae
  • Zeugophora
  • Zeugophora flavicollis

Description

Size: 2.5-3.5mm
Basic colour: Elytra black.
Pattern colour: None
Number of spots: None
Pronotoum: Orange-yellow
Leg colour: Orange-yellow, hind femora darkened.

Palaearctic

Biology

Status: Scattered in SE and midland England, previously more widespread (north to Cumbria). Vulnerable (RDB2), previously categorised as Endangered (RDB1)
RDB Category: Vulnerable (RDB2)
Habitat: Broadleaved woodland, commons.
Host plant: Poplars, sometimes willows.
Overwintering: As new generation adults.
Food: Adults on leaves (usually on fairly mature trees), larvae are leaf-miners.
Other notes: Head black.

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