Monday, 15 May 2017


Wondering if this is a Cnephasia - if so I think that's as far as we can go with an ID - it's long gone now.

Mark Griffiths, Garsington, Oxford


  1. I had a very similar specimen, the first of the year, in my trap last night; I tend to assume that 'Cnephasia sp.' is the best I can do with that type...

  2. Indeed, a Cnephasia species and unfortunately needs dissection to get to species.

    I find that Cnephasia communana is the first to appear in my garden and, like C.stephensiana (which I've had here in May but doesn't usually get going until into June), is at the larger end of the spectrum. C.asseclana and C.incertana are generally smaller and they should start to appear at the end of May. Those are the four garden regulars here. However, I've also had C.genitalana in the garden, while C.pasiuana and C.pumicana have been recorded in the general area and could theoretically turn up here.

    Then there are a couple of confusion species to consider: Eana incanana is relatively easy to pick out with practice but I've never yet successfully identified Isotrias rectifasciana which also appears in my garden (each record has been of one potted for dissection as a "Cnephasia").

    This is a very complicated group!

  3. A good summary from Mister Wilton. If any of you want to know which species you have you will need to keep them for me (or someone else) to dissect for you. Otherwise they all go in a clump together.


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