Thread subject: Diptera.info :: Phaonia sp. (18.05.2025) --> Phaonia cf. fuscata, female

Posted by fatsemann on 17-11-2025 22:11
#1

Hello,
is it possible to get an ID for this Phaonia?
Sighted on 18.05.2025 in Germany, North Rhine-Westphalia in the garden. Body-size approximately 6 to 7 mm
Thank you.
Bernd

Edited by fatsemann on 18-11-2025 22:45

Posted by fatsemann on 17-11-2025 22:12
#2

#2

Posted by fatsemann on 17-11-2025 22:12
#3

#3

Posted by fatsemann on 17-11-2025 22:13
#4

#4

Posted by eklans on 18-11-2025 13:00
#5

The images are quite blurry - hard to make an ID or even a serious guess unfortunately. But anyhow I guess it could be the female Phaonia fuscata which I've never seen before.
- legs predominantly yellow
- crossveins significantly infuscated (but not a P. tuguriorum!)
- antennal base black
- arista long plumose?
- parafacial with a transverse black spot near the insertion of the antenna at #3???

Posted by fatsemann on 18-11-2025 22:43
#6

Hi Eric,
thanks for your effort and your assessment. The arista has long plumose. Sorry, I don't understand the last question. I don't know what you mean.
On observation.org, depending on the pictures, you get anywhere from 100% Phaonia fuscata to 100% Phaonia tuguriorum.
I'll classify the fly as Phaonia cf. fuscata.
Greetings
Bernd

Posted by jck on 18-11-2025 23:52
#7

P. tuguriorum and P. fuscata have 2 main differences when seen from above: P. fuscata has 3 DCs whereas P. tuguriorum has 4 Dcs / P. tuguriorum has a pale brown tip to the scutellum whereas P. fuscata has a fairly uniformly coloured scutellum.

Observation.org can be good for some species but I would be very careful with many of their ID suggestions. Even if it says 100%, treat that as a starting point for further detailed research of your own.

James

Posted by fatsemann on 20-11-2025 22:00
#8

Hi James, thanks for your explanation. I'm not an expert. What are DCs and where can I find them?
Greetings
Bernd

Posted by eklans on 21-11-2025 11:01
#9

Hi Bernd, DC = dorsocentral setae
You may find all terms in this very useful glossary: https://diptera.i.../terms.php

Posted by fatsemann on 21-11-2025 15:14
#10

Hi Eric,
thank yo for the information. It will help me a lot.
greetings
Bernd