Thread subject: Diptera.info :: Phlogophora meticulosa + tachinidae

Posted by Robert Heemskerk on 07-03-2007 00:30
#1

hello Flyforum,

On 20-02 I found the caterpillar of Phlogophora meticulosa in the center of Amsterdam.
I kept it in a little box, where it went into some ground.

Today 7-03 I got surprised to see some(3) flies in the box. I did not order them! ;)
It are Tachinidae sp. and perhabs Lydella sp.?

I took some pictures of a female:

Edited by Robert Heemskerk on 07-03-2007 00:47

Posted by Robert Heemskerk on 07-03-2007 00:31
#2

picture 2

Edited by Robert Heemskerk on 07-03-2007 00:32

Posted by ChrisR on 07-03-2007 10:43
#3

Certainly looks like a tachinid - but if those eyes are hairy then it can't be Lydella. Would be nice to see the face from the side and the front too :D My guess is Phryxe nemea, which is a known parasitoid of Phlogophora meticulosa.

See http://tachinidae...brcno=6104

Chris R.

Posted by Robert Heemskerk on 07-03-2007 11:17
#4

hi Chris,

I will take some new pictures from the face soon.
What I have seen, there where blond haires on the eyes.
On the first picture you can see some of them..

thank you for your reaction :)

Posted by Zeegers on 07-03-2007 22:09
#5

I agree, Chris
This could/should be a male Phryxe nemea


Theo

Posted by Robert Heemskerk on 08-03-2007 00:15
#6

Thanks again Chris and Theo.

I was wondering why this is a male?, how do you see?

On pictures underneath you see the blond hair on the eyes.

Robert,

Edited by Robert Heemskerk on 08-03-2007 00:16

Posted by Robert Heemskerk on 08-03-2007 00:16
#7

detail eyes

Edited by Robert Heemskerk on 08-03-2007 00:17

Posted by ChrisR on 08-03-2007 00:56
#8

Yes, I'd be even more inclined to call it Phryxe nemea :) I think Theo would be sexing it using the presence of proclinate parafrontal bristles, but I can never remember this rule :D

Posted by Robert Heemskerk on 08-03-2007 12:24
#9

''the presence of proclinate parafrontal bristles''

I have to study this, let's see how many males and females I have..

My first Tachinidae sp. of this year! :)

Posted by Zeegers on 08-03-2007 18:30
#10

Rule of thumb: males have vertex smaller, thus no proclinate orbitals (simply no space).
females have vertex broader, thus 2 pair of proclinate orbitals.

All kind of exceptions do exist. Like Phryxe males:
vertex broad, yet still no proclinate orbitals in males.

Robert, take a female and look below the vertex between the eyes, the proclinate (=voorwaarts gerichte) orbitals can't be missed.


Theo

Posted by Robert Heemskerk on 10-03-2007 12:44
#11

I have checked the proclinate orbitals.
It are two females and one male.

female;

Edited by Robert Heemskerk on 10-03-2007 12:48

Posted by Robert Heemskerk on 10-03-2007 12:47
#12

male

Edited by Robert Heemskerk on 10-03-2007 12:47