Swift and Ghost moths (Hepialidae)

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Swift and Ghost moths (Hepialidae)

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ibaird

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Discussion

ibaird wrote:

14 May 2025

Male light coloured almost yellow filamentous antennae with ramia shorter one side thaan the other suggeests O. silvanus.

Oxycanus silvanus

DianneClarke wrote:

12 May 2025

Thanks Ian

Oxycanus australis

donhe wrote:

12 May 2025

From Moths of Victoria Part 6 : "Oxycanus Identification" PDF on accompanying disc :
The wing patterns have variations within each species which exceed the differences between the species, so are of limited value.
The rami on the antennae differ.
O. australis males have long rami, length about 3x their spacing. O australis females have deeply corrugated antennae,
O. dirempta males have rami about as long as their spacing. O. dirempta females have barely corrugated antennae.

Oxycanus australis

DianneClarke wrote:

11 May 2025

@ibaird @donhe Seeking clarification on why you id'd this one as O. australis rather than O. dirempta. I wondered if the 2 markings below the lateral line was a important but I have just looked on BOLD and found this one https://bold-au.hobern.net/specimen.php?processid=ANICM760-10 which seems to have similar bumps below the lateral line. I find Oxycanus difficult.

Oxycanus australis

ibaird wrote:

11 May 2025

Male pectinate antennae light coloured asymmetrical with one side feathering much longer than the other.

Oxycanus antipoda