''Paropsis charybdis'', commonly known as the Eucalyptus tortoise beetle, is a species of leaf beetle belonging to the genus ''

Paropsis ''Paropsis'' is a genus of Chrysomelidae, commonly referred to as tortoise beetles, which includes over 70 described species. Their small size, bright colours and patterns, and roughly hemispherical shape cause them to be mistaken for beetles in t ...

''. It is considered a pest of some species of '' Eucalyptus''.

Description

''Paropsis charybdis'' is identified by its pale creamy-white elytra upon which are three broad transverse areas of darker colouration. The under surface is yellow-brown.

Distribution

''Paropsis charybdis'' is native to Australia, but has spread to nearby New Zealand.

Behaviour and ecology

Parasites

The parasitoid wasps '' Ennogera nassaui'' and '' Eadya paropsidis'' have been used as a

biological control agent Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also invo ...

for ''P. charybdis''.

Relationship to humans

As pests

''Paropsis charybdis'' is the most serious defoliater of eucalyptus in New Zealand and is particularly associated with the subgenus '' Symphyomyrtus''. The most severely attacked species include: '' E. globulus'', '' E. viminalis'', '' E. johnstonii'', '' E. smithii'', '' E. grandis'', '' E. deanei'', '' E. guilfoylei'', '' E. macarthurii'', '' E. longifolia'', and '' E. quadrangulata''.

References

{{Taxonbar, from=Q21315673 Chrysomelinae Beetles described in 1860 Pest insects Beetles of Australia Taxa named by Carl Stål