Diptera.info

Posted by Christine Devillers on 17-05-2012 09:49

I've seen a lot of those little Scathophagidae (about 3mm), flying around Corydalis solida.
Sometimes they were resting on flowers (pic 1 - 4) or leaves, or seemed to oviposit on husk (pic 5).
(Belgium,27-3-2012)

What could it be ?

1 a

Edited by Christine Devillers on 29-04-2013 11:44

Posted by Christine Devillers on 17-05-2012 09:52

1 d

Edited by Christine Devillers on 17-05-2012 09:53

Posted by Christine Devillers on 24-03-2013 11:36

Could you tell me if there are species known as miners of Corydalis or other Fumariaceae ?

Here is another picture showing a female ovipositing in the pod (fruit) of Corydalis solida.

Edited by Christine Devillers on 24-03-2013 11:38

Posted by empeejay on 24-03-2013 15:59

Acerocnema macrocera (Meigen, 1826) maybe?

See Stuke, J.-H. & Schacht, W. (2009): Die Dungfliegen Niedersachsens und Bremens (Diptera, Scathophagidae). - Entomofauna 30: 221-256

Posted by Christine Devillers on 24-03-2013 18:18

Thanks, I'll try to get the pdf. Does it give informations on the host plants ?

Posted by jonas on 24-03-2013 18:25

Hi Christine,

This is a truly spectacular fly! Very nice!

The publicatoin is available here: http://www.landesmuseum.at/pdf_frei_remote/ENT_0030_0221-0256.pdf

No info on host plants, but an indication for early presence is there.

A reference to an identification key is there, but I lack that publication.

Did you spotted this again in your garden?
Bye Jonas

Posted by Christine Devillers on 24-03-2013 19:16

#10

Thanks for the link Jonas, the mention of Corydalis "Die beiden Belege von Bad Bentheim wurden an Lerchensporn
(Corydalis spec.) gefangen und später gezüchtet" is very interesting.

Unfortunately, I've only seen them the 26 and 27 March 2012.

Edited by Christine Devillers on 29-04-2013 11:24

Posted by jonas on 27-03-2013 09:02

#11

Ouch!
mein deutch is not that much worth, so it seems...

Still curious about exact ID :-)
J

Posted by Christine Devillers on 08-04-2013 15:48

#12

I just received confirmation from a specialist of Scathophagidae. He is sure that it is Acerocnema macrocera.
I find no data of this species for Belgium in databases on the web.
Maybe a new species for Belgium?

Posted by Paul Beuk on 09-04-2013 08:36

#13

Not recorded from Belgium according to Šifner, 2008: http://www.aemnp....atalog.pdf

Posted by Christine Devillers on 29-04-2013 11:37

#15

This year, I saw them again in my garden (males, females, matings) in April. Here are two pictures of a male (3mm, 14-04-2013,Spa,Belgium).

I've also seen females of Ichneumonidae (Diplazontinae?) ovipositing in the fruits of Corydalis solida. I guess they tried to parasitize the eggs or larvae of Acerocnema macrocera.
Do you have informations on the parasitizing of Acerocnema macrocera ?

Edited by Christine Devillers on 29-04-2013 11:39

Posted by Christine Devillers on 29-04-2013 11:46

#17

Ichneumonidae ovipositing on Corydalis solida

Posted by Christine Devillers on 29-04-2013 11:47

#18

pic 2 Ichneumonidae ovipositing on Corydalis solida