Hellula hydralis
{{Short description|Species of moth}}
{{Speciesbox
| image = Hellula hydralis 1.jpg
| image_caption =
| taxon = Hellula hydralis
| authority = Guenée, 1854
| synonyms =
- Scopula criasusalis Walker, 1859
- Scoparia optatusalis Walker, 1859
- Pyralis subtrigonalis Walker, [1866]
}}
Hellula hydralis, the cabbage centre grub, is a moth of the family Crambidae. It was described by Achille Guenée in 1854 and is found throughout Australia.
Image:Hellula hydralis dorsal.jpg
Image:Hellula hydralis ventral.jpg
The wingspan is about 20 mm.{{cite web|url=http://www-staff.it.uts.edu.au/~don/larvae/glap/hydral.html |title=Hellula hydralis |author=Don Herbison-Evans & Stella Crossley |publisher=uts.edu.au |date=February 6, 2008 |accessdate=February 10, 2009 |url-status=dead |archiveurl=https://web.archive.org/web/20080727170315/http://www-staff.it.uts.edu.au/~don/larvae/glap/hydral.html |archivedate=July 27, 2008 }}
The larvae feed on Brassica oleracea and Brassica napus.