thelilacgrove's picture


Observed: 3rd June 2013 By: thelilacgrovethelilacgrove’s reputation in Invertebratesthelilacgrove’s reputation in Invertebratesthelilacgrove’s reputation in Invertebrates

I'm stumped

Species interactions

No interactions present.

Species with which Rustic Shoulder-knot (Apamea sordens) interacts


Ron Elliott's picture

... or none of the above

... or none of the above

Jonny721's picture

I'm pretty sure it's Rustic

I'm pretty sure it's Rustic Shoulder-knot. Minor Shoulder-knot won't be flying for another month or two yet whereas Rustic Shoulder-knot is flying now

DavidHowdon's picture


You should re-add your ID with the scientific name included, then people can agree to it.

Douglas's picture


You're right about flight time - I didn't consider that. Well spotted.

Certainly not a usual RSK - if that's what it is. On first look the ground colour was completely wrong, shape was wrong and the markings didn't quite look right.

Looking again, it could certainly be a very atypical RSK.

Best wishes,

Twitter: @diarsia

thelilacgrove's picture


Thanks for a all your help guys. Sorry to cause problems :-) Think it is more than likely RSK, thanks again


Martin Harvey's picture


I'm still undecided on this - the antennae look to be very feathered, does that match Rustic Shoulder-knot? I can't find any other photos that show such feathered antennae.

Minor Shoulder-knot does have feathered antennae (in the male at least), and in Berkshire we have records starting at the beginning of June (building to a peak in July), but the wing markings don't look quite right for it.

Not sure!

Entomologist and biological recorder

DavidHowdon's picture


someone should create a generic "noctuid" entry so the not-sure option can get a vote.

Douglas's picture


Personally, I'm fairly happy it's an atypical RSK.

If you look closely at the markings, they do match that species - even if some of the more general features seem wrong.

Of course, the 'shoulder-knot' is clear on the image, so that limits the number of species possible. (off the top of my head I can only think of the two already mentioned that share this feature)

Not sure about the antennae, Martin. Male RSK do seem to have very slight pectinate antennae. I wonder if the antennae on this individual are distorted by the bottom of the pot/reflection? What seems to look like the wide antennae seems to continue beyond the moth, possibly suggesting it's the pot?

Best wishes,

Twitter: @diarsia