Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Sermylassa
- Sermylassa halensis
Images
Source: Peter Hodge
Source: Roger Key
Description
Size: 5-7mm
Basic colour: Elytra metallic green or blue, rarely coppery.
Pattern colour: None
Number of spots: One large dark spot on top of the head
Other colour forms: Rare
Pronotoum: Yellow-brown to orangey
Leg colour: Yellow-brown to orangey
Basic colour: Elytra metallic green or blue, rarely coppery.
Pattern colour: None
Number of spots: One large dark spot on top of the head
Other colour forms: Rare
Pronotoum: Yellow-brown to orangey
Leg colour: Yellow-brown to orangey
Western Palaearctic.
Biology
Status: Widespread in England and Wales, rare in Scotland and Ireland.
Habitat: Various
Host plant: Bedstraws (Galium spp.) and calamints (Clinopodium spp.)
Overwintering: As eggs and probably also as adults in milder areas.
Food: Adults on leaves, larvae on leaves and stems.
Other notes: Larvae and pupae parasitised by the carabid ground beetle Lebia chlorocephala, the adults of which may also predate larvae.
Habitat: Various
Host plant: Bedstraws (Galium spp.) and calamints (Clinopodium spp.)
Overwintering: As eggs and probably also as adults in milder areas.
Food: Adults on leaves, larvae on leaves and stems.
Other notes: Larvae and pupae parasitised by the carabid ground beetle Lebia chlorocephala, the adults of which may also predate larvae.