Taxonomy
- Polyphaga
- Chrysomeloidea
- Chrysomelidae
- Gonioctena
- Gonioctena decemnotata
Images
Source: Lech Borowiec
Description
Size: 5.5-7.5mm
Basic colour: Yellowish-orange to reddish-brown with black spots
Pattern colour: Yellowish-orange to reddish-brown with black spots
Number of spots: Two on the pronotum, five on each elytron (rarely some or all absent)
Other colour forms: Rare
Pronotoum: Yellowish-orange to reddish-brown with black spots
Leg colour: Yellowish-orange to reddish-brown.
Confusion species: Gonioctena viminalis
Basic colour: Yellowish-orange to reddish-brown with black spots
Pattern colour: Yellowish-orange to reddish-brown with black spots
Number of spots: Two on the pronotum, five on each elytron (rarely some or all absent)
Other colour forms: Rare
Pronotoum: Yellowish-orange to reddish-brown with black spots
Leg colour: Yellowish-orange to reddish-brown.
Confusion species: Gonioctena viminalis
Biology
Status: Scarce (Notable B); widely scattered, mainly in central and southern England.
Habitat: Glades and rides in broad-leaved woods, fields bordering woods, commons.
Host plant: Aspen (Populus termula), sometimes other trees.
Overwintering: Adults probabl yoverwinter, but details unknown.
Food: Leaves of host plants
Other notes: Similar to G. viminalis but head not entirely black (clypeus and labrum yellowish to reddish-brown), legs also yellowish to reddish-brown.
Habitat: Glades and rides in broad-leaved woods, fields bordering woods, commons.
Host plant: Aspen (Populus termula), sometimes other trees.
Overwintering: Adults probabl yoverwinter, but details unknown.
Food: Leaves of host plants
Other notes: Similar to G. viminalis but head not entirely black (clypeus and labrum yellowish to reddish-brown), legs also yellowish to reddish-brown.