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 Microdon analis ?
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| Rupert Huber |
Posted on 22-05-2009 13:13
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 Member Location: Germany / South-East Bavaria Posts: 761 Joined: 19.07.07 |
Hello to all, can I make this one fix as Microdon analis or might it be as well a different species? Size approx. 12±2mm Found 21.5.2009, Austria, Salzburger Land, near Golling, about 500m asl Greetings Rupert Rupert Huber attached the following image:  [71.12Kb] |
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| Rupert Huber |
Posted on 22-05-2009 13:13
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Member Location: Germany / South-East Bavaria Posts: 761 Joined: 19.07.07 |
2nd pic
Rupert Huber attached the following image:  [47.28Kb] |
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| Rupert Huber |
Posted on 28-05-2009 04:19
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Member Location: Germany / South-East Bavaria Posts: 761 Joined: 19.07.07 |
No comments? Greetings Rupert |
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| caliprobola |
Posted on 28-05-2009 21:43
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Member Location: Belgium Posts: 203 Joined: 24.05.07 |
Well, there has been some changes in European Microdon taxonomy recently. Some species appeared to be cryptic species as so with Microdon analis. The adults can not be recognized but differences can be found in the structure of the larval skin. Also different ant host species are used by the larvae. So probably your fly is Microdon analis but Microdon major can not be excluded. If you observe a Microdon it is always wise to look in the direct neighbourhood of the fly if you can find a ant's nest. Microdon analis lives together with Lasius (probably only Lasius platythorax) ants with nests in dead wood. Microdon major with Formica nests in dead wood (Formica sanguinea amongst other Formica species). Most of the time the flies don't struggle very far from the host's nest. |
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| Rupert Huber |
Posted on 30-05-2009 08:04
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Member Location: Germany / South-East Bavaria Posts: 761 Joined: 19.07.07 |
Thanks, caliprobola, for this information. So next time when I find Microdon, I'll try to spot some ants around, hoping they are coming from the fly's hosts' nest. Greetings Rupert |
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| caliprobola |
Posted on 31-05-2009 18:05
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Member Location: Belgium Posts: 203 Joined: 24.05.07 |
when i was in the Belgian Ardennes last week we saw Microdon analis at several occasions and at almost every occasion we found a ant's nest in the direct neighbourhood (+ 1m) of the fly. look for decaying wood stumps. |
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