Diptera.info :: Identification queries :: Diptera (adults)
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 Tachina fera female
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| jck |
Posted on 23-09-2017 07:00
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Member Location: Posts: 1074 Joined: 21.08.12 |
I am fairly sure this is a female Tachina fera (near Apeldoorn, NL on 10/09/2017) but I'm not sure about the front legs. In the key it says that T. magnicornis females have segment 4 of the front tarsus clearly wider than long. How do you count them? Do you start at the claws and count towards the tibia (that would make number 4 longer than wide) or do you start at the end of the tibia and count towards the claws (that means segment 4 is the one with the water drop and it is wider than long)? James jck attached the following image:  [163.02Kb] Edited by jck on 23-09-2017 07:05 |
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| jck |
Posted on 23-09-2017 07:00
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Member Location: Posts: 1074 Joined: 21.08.12 |
Genitalia
jck attached the following image:  [182.07Kb] |
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| jck |
Posted on 23-09-2017 07:01
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Member Location: Posts: 1074 Joined: 21.08.12 |
2 orbitals
jck attached the following image:  [180.45Kb] |
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| jck |
Posted on 23-09-2017 07:01
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Member Location: Posts: 1074 Joined: 21.08.12 |
Frons:eye
jck attached the following image:  [181.83Kb] |
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| jck |
Posted on 23-09-2017 07:02
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Member Location: Posts: 1074 Joined: 21.08.12 |
Front tarsi
jck attached the following image:  [189.72Kb] |
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| Zeegers |
Posted on 23-09-2017 08:56
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Member Location: Soest, NL Posts: 18529 Joined: 21.07.04 |
You always with anything start in the centre of the body, so in the centre of the thorax. Hence, in this case, fourth = one-but-last segment. There is no one feature to separate females magnicornis from fera. I'd say this is fera without reasonable doubt. Theo |
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| jck |
Posted on 23-09-2017 17:10
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Member Location: Posts: 1074 Joined: 21.08.12 |
Thanks again, Theo. James |
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but don't see the image in the post.
