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 Eristalis arbustorum
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| Susan R Walter |
Posted on 10-02-2007 15:34
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 Member Location: Posts: 1794 Joined: 14.01.06 |
Can I have some reassurance please? I am reasonably confident that these two are male and female of Eristalis arbustorum, but would like someone to confirm it. From 19 August 2006, east London cemetery park. Female first. Susan |
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| Susan R Walter |
Posted on 10-02-2007 15:36
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Member Location: Posts: 1794 Joined: 14.01.06 |
Female again. Face completely dusted except for tiny dot which I assume is just rubbed. Black tarsi, mid tibia black in apical half. 9mm.
Edited by Susan R Walter on 10-02-2007 15:38 Susan |
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| Susan R Walter |
Posted on 10-02-2007 15:39
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Member Location: Posts: 1794 Joined: 14.01.06 |
Male. 10mm. Much hairier than female on abdomen.
Susan |
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| Andre |
Posted on 10-02-2007 18:18
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 Member Location: Posts: 2111 Joined: 18.07.04 |
Sure looks like arbustorum. But to exclude abusivus: can you give us a close look on the antennae of both sexes and the upper side of the head of the male? |
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| Susan R Walter |
Posted on 10-02-2007 20:34
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Member Location: Posts: 1794 Joined: 14.01.06 |
OK will do - what are we looking for?
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:01
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Member Location: Posts: 1794 Joined: 14.01.06 |
Close up of female
Edited by Susan R Walter on 24-02-2007 17:03 Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:02
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Member Location: Posts: 1794 Joined: 14.01.06 |
Another close up of female.
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:04
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Member Location: Posts: 1794 Joined: 14.01.06 |
And another close up of the female
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:05
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Member Location: Posts: 1794 Joined: 14.01.06 |
And a close up of the male
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:06
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Member Location: Posts: 1794 Joined: 14.01.06 |
Another close up of the male
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:07
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Member Location: Posts: 1794 Joined: 14.01.06 |
And another close up of the male
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:14
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Member Location: Posts: 1794 Joined: 14.01.06 |
This is a different female, collected a month earlier on 22 July 2006, in the same east London cemetery park. I see that Stubbs says that the easiest way to distinguish E arbustorum and E abusivus is to check that the mid tibia is clearly bicolour (arbustorum) and not entirely pale (abusivus). Is this character reliable?
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:14
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Member Location: Posts: 1794 Joined: 14.01.06 |
Second female again
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:16
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Member Location: Posts: 1794 Joined: 14.01.06 |
Second female again
Susan |
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| Susan R Walter |
Posted on 24-02-2007 17:16
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Member Location: Posts: 1794 Joined: 14.01.06 |
Second female again.
Susan |
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but don't see the image in the post.
