Coccinella undecimpunctata Linnaeus, 1758

Taxonomy: Polyphaga > Cucujoidea > Coccinellidae > Coccinella > Coccinella undecimpunctata

Common name: 

Eleven-spot Ladybird

Images

Coccinella undecimpunctata
Coccinella undecimpunctata
Coccinella undecimpunctata

Description

Length: 4 - 5mm.  Background colour: red.  Pattern colour: black spots.  Number of spots: 7-11 (11).  Spot fusions: uncommon.  Melanic (black) forms: no.  Pronotum: black with anterior-lateral white marks; broadest at base.  Leg colour: black.  Other features: black spots occasionally surrounded by a thin yellow ring.

Fourth-instar larva: closely resembles 7-spot ladybird, but smaller and without the conspicuous orange lateral patches on first thoracic segment; abdomen has orange spots in pairs on a grey-black background.  Pupa: black front section but otherwise cream with inner tubercles on abdominal segments forming two dark bands running longitudinally; orange lateral patches on first abdominal segment; inner and outer tubercles on fourth abdominal segment also orange. 

 

Biology

Habitats: The 11-spot ladybird is an elusive species that occupies a variety of habitats but particularly dune systems.  The coastal nature of this species is further highlighted by the number of strandline records.  

Host plants: 11-spot ladybirds are commonly associated with sea radish, nettle, gorse, rosebay willowherb and thistles.  There are a scattering of records from deciduous trees including ash, beech, sycamore and oak.

Food: aphids.

Overwintering sites: 11-spot ladybirds overwinter in leaf litter and buildings. 

Articles

Entwhistle, P.F. & Moran, S.A. (1997). Variability in the Eleven-spot Ladybird Coccinella undecimpunctata Linnaeus (Coccinellidae) in th enorthern highlands of Scotland compared with other parts of the British Isles. The Coleopterist 5(3): 69.

Distribution (may take a minute to appear)