Cryptocephalus biguttatus

Authority: 

(Scopoli, 1763)
Size: 4.5-6.0mm
Basic colour: Black
Pattern colour: Orange-yellow apical spot covering one tenth to one third of the elytra
Number of spots: 1 main apical spot; sometimes a second very small spot slightly forward of this.
Spot fusions: Common
Pronotoum: Black
Leg colour: Black
Confusion species: Cryptocephalus bipunctatus

Cryptocephalus bipunctatus

Authority: 

(Linnaeus, 1758)
Size: 4-6mm
Basic colour: black and orange-red
Pattern colour: 1 black longitudinal band (variable, and may be split into 2 spots) on each orange-red elytron
Number of spots: 1 or 2 per elytron - if 1, usually as a band; if 2, usually one on 'shoulder' and one in the centre of the elytron.
Spot fusions: Sometimes
Other colour forms: Rare
Pronotoum: Black
Leg colour: Black
Confusion species: Cryptocephalus biguttatus

Crioceris asparagi

Size: 

5.0-6.5mm

Basic colour: 

Blue-black, reddish and yellow

Pattern colour: 

Elytra yellow with a dark blue central band and three transverse stripes.

Leg colour: 

Dark blue-black; tibiae usually reddish at base.

Crioceris asparagi

Authority: 

(Linnaeus, 1758)

Common name: 

Asparagus Beetle
Size: 5.0-6.5mm
Basic colour: Blue-black, reddish and yellow
Pattern colour: Elytra yellow with a dark blue central band and three transverse stripes.
Number of spots: None, though the elytral banding effectively leaves three yellow spots per elytron.
Pronotoum: Reddish, often with a dark spot.
Leg colour: Dark blue-black; tibiae usually reddish at base.

Aphthona nonstriata

Size: 

2.6-2.8mm

Basic colour: 

Bright metallic blue, sometimes dark green or dark brassy/bronze, rarely almost black.

Pattern colour: 

None

Leg colour: 

Mostly as basic colour, hing femora red-brown to dark brown, sometimes darker apically.

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