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UK Nature  > Bugs  > Zicrona caerulea

Scientific Name:   Zicrona caerulea
Common Name:   Blue Shield Bug

One of the UK's smallest shield bugs (usually around 5-7mm in length), Zicrona caerulea has a deep blueish green metallic colouring that can vary according to the lighting conditions and a very dark wing membrane. The larvae are very different though, displaying a bright red colouration with black markings.

Adults are usually first seen from April onwards (my specimen was photographed in Lincolnshire on the 17th of April); they have one brood a year and the first of the new generation of adults can be seen from July onwards.

Occuring on low vegetation in a variety of habitats, but not often seen in suburban gardens, Zicrona caerulea is a predatory species, very often feeding off the larvae of Altica oleracea (Chrysomelidae). It can be found throughout the United Kingdom, but is absent from Ireland.
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