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1208 Views 13 Replies Last post: Mar 11, 2013 5:16 PM by MikeHardman RSS
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Mar 10, 2013 10:04 AM

Bug id

Can anyone identify this beetle?    It was in my kitchen this morning, think it may have come out of some blackberries from the supermarket.

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    Mar 10, 2013 9:44 AM (in response to hudl)
    Re: Bug id

    Hi

    It's a Shield bug or Forest bug. Not sure exactly which from your photo. Can you post a better picture?

     

    Regards

     

    Habdab

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    Mar 10, 2013 11:44 AM (in response to hudl)
    Re: Bug id

    I agree with habdab that it is a true bug (Hemiptera), and most probably a shield bug (Pentatomidae)

    However, hudl, when making comparisons with images on the internet, bear in mind that yours is not an adult. It looks to be a final instar (last nymph stage before adult). The appearance of true bugs changes considerably as they develop.

     

    Nezara viridula (southern green shieldbug) is not far off, but certainly not identical - see

    http://www.britishbugs.org.uk/heteroptera/Pentatomidae/nezara_viridula.html.

    Notice how individuals, even of the same instar of the same species, can look very different - look at the last three photos on that page - they are all final instar nymphs. Yours may yet prove to be of this species.

     

    There are plenty of other bugs listed on that (excellent) site, including these drawings

    http://www.britishbugs.org.uk/heteroptera/idcards/life_stages.html.


    Maybe it is not British?

    Do you live in Britain?

     

    If you can keep it alive, you may witness its transformation into an adult, which would be nice, and which would help identification considerably. Be prepared for it to be completely green!

     

    BTW, if you find yourself getting interested in true bugs, have a read of this introduction by the NHM

    - http://www.nhm.ac.uk/resources-rx/files/26feat_its_a_bugs_life-3013.pdf

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        Mar 10, 2013 2:50 PM (in response to hudl)
        Re: Bug id

        Keeping the bug:

        If possible, keep the foliage fresh - better to have a sprig in water, and if you can find any brambles with new leaves, that would be worth trying. Many insects are fussy about their food!

        Watch it and try to notice it eating (sucking). If it does that, it probably likes what's on the menu

         

        Mexico:

        Yes, it could have come from there on your blackberries. These little creatures can get around on crops. For instance, there are shield bugs in the USA that came from Africa. If it did come from Mexico, it could still be Nezara viridula, as that is recorded from Central America (Honduras in this case - http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1030&context=insectamundi).

        I am finding it difficult to discover good pictorial references to Pentatomidae of Mexico, so anybody with access to relevant printed reference works, please contribute!

        The best one for North America is http://bugguide.net/node/view/182/bgimage. But I have looked through 5,700 images of bugs without finding a match for yours

        Here are some more Nezara viridula nymphs - http://bugguide.net/node/view/333579/bgimage.

        Thyanta is another possible genus.

         

        Printed reference of potential relevance:

        Stink Bugs of Economic Importance in America North of Mexico

        By McPherson, E. and Robert McPherson

        CRC Press, 2000

        ISBN: 0-8493-0071-1

        Cite: 469238

        (yes, that's 'North of Mexico', but they get around)

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          Mar 10, 2013 3:21 PM (in response to MikeHardman)
          Re: Bug id

          May I suggest that if you have a sprig of foliage in water, then cover the water with a layer of cotton wool to prevent the bug from accidently drowning. Not too sure how suicidal bugs are but I know Reptiles can drown easily in captivity.

           

          Regards

           

          Habdab

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            Mar 10, 2013 8:46 PM (in response to hudl)
            Re: Bug id

            Lynne,

            If it survives, we stand a better chance of identifying it, and then we can decide (perhaps) if the authorities should be notified.

            Precautions against bug drowing would do no harm, but in this sort of case -where there is a plant stem serving as a route out of the water- I think the risk is relatively small, especially if the stem is kept in touch with the inside of the vessel.

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