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 Helophilus sp, Hungary, April 2007
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| Xespok |
Posted on 11-02-2008 16:15
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 Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
Just a drab H. pendulus or something more interesting?
Xespok attached the following image:  [89.71Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 11-02-2008 16:16
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
Another view.
Xespok attached the following image:  [80.32Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 11-02-2008 16:17
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
And another view.
Xespok attached the following image:  [74.74Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 11-02-2008 16:20
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
A more typical H. pendulus for comparison from May.
Xespok attached the following image:  [72.27Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 11-02-2008 16:22
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
Another view of the second ind.
Xespok attached the following image:  [56.68Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 11-02-2008 16:23
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
The head with the characteristic dark stripe.
Xespok attached the following image:  [45.09Kb] Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Andre |
Posted on 11-02-2008 16:30
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
H. hybridus female.. PS: you compared it with a male pendulus if I see it correctly  |
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| Xespok |
Posted on 11-02-2008 16:45
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Member Location: Debrecen, Hungary Posts: 5551 Joined: 02.03.05 |
I missed this point completely. I need to resex all my H. images. Actually it started to get suspicious that I always photograph females. It is probably easier to separate males and females by the shape of their abdomen. If pointed - females, if straightish - males. But why do you think the first one is hybridus? I see that the two flies are very different, but I do not know what is relevant and what is not. Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Andre |
Posted on 11-02-2008 22:58
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Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
Helophilus is one of the few genera where males have the eyes separated like the females (though they stay a little closer to eachother than in females). Yes, the shape of the abdomen is the next best character. Sorry for my omission: view the tip of the femur 3 and base of tibia 3: hybridus femur with only a very small area yellow, the rest black. Base of tibia is about 1/4 yellow in hybridus, instead of 2/3. |
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