Thread subject: Diptera.info :: Eristalis arbustorum
Posted by Susan R Walter on 10-02-2007 15:34
#1
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.
Posted by Susan R Walter on 10-02-2007 15:36
#2
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
Posted by Susan R Walter on 10-02-2007 15:39
#3
Male. 10mm. Much hairier than female on abdomen.
Posted by Andre on 10-02-2007 18:18
#4
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?
Posted by Susan R Walter on 10-02-2007 20:34
#5
OK will do - what are we looking for?
Posted by Susan R Walter on 24-02-2007 17:01
#6
Close up of female
Edited by Susan R Walter on 24-02-2007 17:03
Posted by Susan R Walter on 24-02-2007 17:02
#7
Another close up of female.
Posted by Susan R Walter on 24-02-2007 17:04
#8
And another close up of the female
Posted by Susan R Walter on 24-02-2007 17:05
#9
And a close up of the male
Posted by Susan R Walter on 24-02-2007 17:06
#10
Another close up of the male
Posted by Susan R Walter on 24-02-2007 17:07
#11
And another close up of the male
Posted by Susan R Walter on 24-02-2007 17:14
#12
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?
Posted by Susan R Walter on 24-02-2007 17:14
#13
Second female again
Posted by Susan R Walter on 24-02-2007 17:16
#14
Second female again
Posted by Susan R Walter on 24-02-2007 17:16
#15
Second female again.