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 Fly with a red abdomen
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| Pegasus-wtal |
Posted on 23-05-2008 23:54
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Member Location: Wuppertal, Germany Posts: 3 Joined: 23.05.08 |
Hello, I found this fly yesterday and as I could not find it in my insect book, I searched the Internet and finally found this beautiful website. The fly was trapped in a house near a wood, here in Wuppertal, Germany. It was about 250mm long. The reason why I found it so remarkable was it's red abdomen. This specimen was not shy at all. I took it home, placed it in a glass cage usually used for spiders and made photos through the glass. Then I removed the front glass, risking that it flew away. To my astonishment, it remained on the stone inside the cage. So I made some more photos. The fly didn't even escape when I poked my fingers inside the cage to turn the stone so that it showed a more photogenic side. Finally I went outside, removed the stone with the fly from the cage and placed it on the floor. Still it didn't not fly away. Instead it slowly walked away into a dark corner of the garden. Can anyone tell me what kind of fly that was ? Thanks a lot for your help !! Pegasus-wtal attached the following image:  [81.97Kb] |
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| Andre |
Posted on 24-05-2008 00:12
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 Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
This is Brachypalpoides lentus, female. A very beautiful fly indeed, belonging to the family Syrphidae. It has it's larvae in dead wood. |
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| Susan R Walter |
Posted on 27-05-2008 20:17
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Pegasus-wtal - it would be nice if you uploaded this image to the gallery - especially the top one, as it shows golden dusting on the thorax. Tristanba's images in the gallery don't show this - presumably they are a more worn specimen and yours is fresher.
Susan |
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| Pegasus-wtal |
Posted on 27-05-2008 20:57
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Member Location: Wuppertal, Germany Posts: 3 Joined: 23.05.08 |
Of course I can add some pictures of that to the gallery. I have made about 170 photos of that one, and it seems that it depends on the angle of view wether you can see the golden dusting or not. I will upload the one where the golden dusting is most visible tomorrow. |
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| Andre |
Posted on 27-05-2008 21:23
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Member Location: Tilburg, the Netherlands Posts: 2111 Joined: 18.07.04 |
The golden 'dusting' sure doesn't look natural to me. |
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| Pegasus-wtal |
Posted on 27-05-2008 21:41
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Member Location: Wuppertal, Germany Posts: 3 Joined: 23.05.08 |
Hi Andre, This "Golden Dusting" is not something like pollen. The hairs on the thorax have this golden colour. Here's a zoom of that area: Pegasus-wtal attached the following image:  [96.69Kb] Edited by Pegasus-wtal on 27-05-2008 21:47 |
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| Susan R Walter |
Posted on 28-05-2008 22:38
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Andr? - not being familiar with this fly, I looked at the pics and thought the gold was either dusting or pubescence intermingled with longer dark hairs - rather as the close up reveals. Now that I have looked it up, I note that Stubbs does not mention this character in his description at all, nor is it indicated in the illustration in British Hoverflies. However, there is a trace of similar gold if you look closely at Tristanba's images in the gallery. Perhaps these hairs are like Pollenia's and wear off very quickly.
Susan |
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