''Castiarina'' is a genus of
beetles in the family
Buprestidae
Buprestidae is a family of beetles known as jewel beetles or metallic wood-boring beetles because of their glossy iridescent colors. Larvae of this family are known as flatheaded borers. The family is among the largest of the beetles, with some ...
, tribe Stigmoderini. This is one of the largest genera of beetles in Australia and emerge in the summertime to coordinate with flowering of native plants including ''
Eucalyptus'' and tea trees (''
Leptospermum
''Leptospermum'' is a genus of shrubs and small trees in the myrtle family Myrtaceae commonly known as tea trees, although this name is sometimes also used for some species of ''Melaleuca''. Most species are endemic to Australia, with the greate ...
'').

''
Species
There are over 400 species of ''Castiarina'' in Australia. ''Castiarina'' includes the following species:
References
{{Taxonbar, from=Q5049867
Buprestidae genera
Taxa named by Hippolyte Louis Gory
Taxa named by François-Louis Laporte, comte de Castelnau