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552 Views 1 Reply Last post: May 27, 2013 9:12 AM by MikeHardman RSS
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May 26, 2013 9:52 PM

Please is this a  larva of the Six Spot Burnet?

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    May 27, 2013 9:12 AM (in response to Dinahsaw)
    Re: Please is this a  larva of the Six Spot Burnet?

    Let's just open up the search to all Zygaeninae (burnet moths) for a moment...

     

    Assuming you are in the UK, there could be up to seven burnet species to consider (http://ukmoths.org.uk/systematic.php#Zygaeninae)

    We can rule out:

    - Zygaena lonicerae (narrow-bordred five-spot burnet) - that has very long setae (hairs); yours are short

    - Zygaena exulans (Scotch burnet) - its larvae are darker than yours

    Also, you may be able to rule some out by considering food plant (refer to individual species links in the above URL) - assuming you know the foodplant (not the grass it happens to be on in your photo).

    And you may be able to rule some out based on location and time of year.

    Even if you reared your larva to maturity, the adult might still be ambiguous; it might be even more ambiguous.

     

    To come back to your particular insect, it seems likely to be a choice between five- and six-spot burnet, both of which have short setae.

    To quote from http://www.falcons.co.uk/default.asp?id=71 - "Both larva and pupa of this species [six spot] are incredibly similar to those of the five spot. In fact, the adults are very similar also".

    If the location is not in SW England or Wales, we can be more certain it is a six spot. That is, I concur with your surmise. 

     

    Please tell us the location, in case that does enable us to be take that extra step in confidence.

     

    Refs::

    - http://britishlepidoptera.weebly.com/170-zygaena-trifolii-five-spot-burnet.html

    - http://ukmoths.org.uk/show.php?id=6587 (re distribution of six-spot)

    - http://ukmoths.org.uk/show.php?bf=170 (re distribution of five-spot)

     

     

    Mike

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