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Insect: Tyrant ground beetle ( Anthia maxillosa)

Find, identify & discuss the insects of SANParks
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arks
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Insect: Tyrant ground beetle ( Anthia maxillosa)

Unread post by arks » Mon Jun 07, 2010 1:36 am

Can anyone help me with an ID for this beetle? Seen in KTP in February 2010.

Image
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Re: Insect ID needed

Unread post by oddesy » Mon Jun 07, 2010 10:51 am

Arks it looks like a Tyrant ground beetle ( Anthia maxillosa) but the distribution does not match up :hmz: any chance you remember how large it was?
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arks
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Re: Insect ID needed

Unread post by arks » Mon Jun 07, 2010 1:26 pm

Thanks again, oddesy! Saw quite a few of these in KTP in February. Most of them moved quickly, so not easy to get any pix. This particular one was seen in the gravelly braai area of tent #1 at Grootkolk, so I was able to "stalk" it with my zoom lens from the comfort of my chair on the stoep! :roll: :wink:
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Imberbe
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Re: Insect ID needed

Unread post by Imberbe » Mon Jun 07, 2010 5:23 pm

oddesy wrote:Arks it looks like a Tyrant ground beetle ( Anthia maxillosa) but the distribution does not match up :hmz: any chance you remember how large it was?


It is a ground beetle, not a blister beetle. Ground beetles are of the Carabidae family, whilst blister beetles are of the family Meloidae. Adult ground beetles are carnivores, whilst blister beetles are herbivores. Have a good look at those mandibles! It says lion ... :wink:

What may confuse things is the usual common name situation. Because these beetles also has the ability to squirt formic acid from its anus, it may in fact be seen as a blister beetle.

It may not be Anthia maxillosa, but must be a very closely related species.
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Re: Insect ID needed

Unread post by Caracal » Mon Jun 07, 2010 6:22 pm

Like Arks I have seen many of these beetles in the KTP and they always look the same...I do not think I have seen two different but very similar looking beetles.
Always presumed they were blister beetles because of the ID in the KTP guide..

Image

Is this ID in the book incorrect then ????

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Re: Insect ID needed

Unread post by Imberbe » Mon Jun 07, 2010 8:15 pm

Exactly what I was talking about ... a confusion in common names.

What is known as a blister beetle in the KTP and what is known as a blister beetle in the savanna areas is clearly different species. The scientific name is correct Anthia sp. - which is named a ground beetle in (at least some) insect books.

Here you can see a picture of the "other" blister beetle:

kesheshe wrote:

Image





Though I hate to admit it, and though I much prefer common names, this is the one use for a scientific name ... it prevents confusion.
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