Thread subject: Diptera.info :: Empis punctata or trigramma ? => Empis punctata

Posted by Moumoule on 23-05-2025 00:06
#1
Hello,

I've been trying to understand how to seperate one from the other but I have troubles reading chetotaxy of this Empis, could you help me please ? What about the differrence(s) of both genitalia, does that can help to make the difference between this two species ?

www.galerie-insecte.org/galerie/image/dos358/big/Empis%20punctata%20ou%20trigramma%20-%20Empididae%20-%20DIPTERA%20a%20verif%2026.JPG
MOLINIER Cédric : France : Prats-de-Mollo-la-Preste : 66230 : 19/05/2025
Altitude : 1041m - Taille : 9-10mm
Réf. : 358972

www.galerie-insecte.org/galerie/image/dos359/big/Empis%201.JPG
MOLINIER Cédric : France : Prats-de-Mollo : 66230 : 19/05/2025
Altitude : 1041m - Taille : 9-10mm
Réf. : 359083

www.galerie-insecte.org/galerie/image/dos359/big/Empis%20Cheto1.jpg
MOLINIER Cédric : France : Prats-de-Mollo : 66230 : 19/05/2025
Altitude : 1041m - Taille : 9-10mm
Réf. : 359084
Edited by Moumoule on 08-07-2025 00:22

Posted by Moumoule on 10-06-2025 11:04
#2
No takers ?

Posted by Auratus on 11-06-2025 09:04
#3
This looks like a fine male Empis punctata to me. Genitals and chetotxy are as expected for this species. The absence of a supra-alar bristle (just above the wings) excludes E. trigramma

Posted by Moumoule on 18-06-2025 23:00
#4
Ok, Thank you very much Jan !