Gallery Links
Users Online
· Guests Online: 20

· Members Online: 0

· Total Members: 5,072
· Newest Member: Topopa
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Zeegers< 5 mins
· ESant00:09:18
· Nosferatumyia01:01:34
· weia01:03:24
· fatsemann01:14:14
· libor01:29:22
· Reimund Ley01:45:34
· Nacho Cabellos02:05:14
· eklans02:20:36
· tabiatdostu02:51:31
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Diptera (adults)
 Print Thread
Phasia theodori?
clovis
#1 Print Post
Posted on 16-04-2021 22:20
Member

Location: North France, lille
Posts: 937
Joined: 08.06.10

Dear all,

Second Tachinid question for tonight:
Here is a small specimen I identified as a Phasia following Central europe key.
From side of Loire (ending of the Layon river, for those who are interested in Diptera and vine Smile), wet area.
Several specimens, I also caught a female (and I have picture in vivo of her)

I totally dont get the first point of the Phasia key, so I followed both.
Ibelieve it could be P theodori as:
-halteres are yellow
-hairs on peristome are totally white
-S7 of female appear similar to the figure given.

My little doubt are from the wing of male: It has is centraly black tinged (not greatly visible on this picture I am afraid).
And wing is mention to be unspotted. So I am wrong?

I apologize for quality of pictures, specimen is really small!
www.galerie-insecte.org/galerie/image/dos279/big/IMG_7101.JPG
clovis : France : Chalonnes-sur-Loire : 49290 : 10/10/2020
Altitude : 12 m - Taille : 6 mm
Réf. : 279635

www.galerie-insecte.org/galerie/image/dos279/big/Chalonne%20sur%20loire%20octobre%202020%201.JPG
clovis : France : Chalonnes-sur-Loire : 49290 : 10/10/2020
Altitude : 12 m - Taille : 6 mm
Réf. : 279636

www.galerie-insecte.org/galerie/image/dos279/big/Chalonne%20sur%20loire%20octobre%202020%202.JPG
clovis : France : Chalonnes-sur-Loire : 49290 : 10/10/2020
Altitude : 12 m - Taille : 6 mm
Réf. : 279638
 
Zeegers
#2 Print Post
Posted on 17-04-2021 15:57
Member

Location: Soest, NL
Posts: 19223
Joined: 21.07.04

As you noticed, wing colouration is off, moreover, it is too big.
Are you sure it is Phasia and not Ectophasia ? When Phasia, obesa is the first species to check. Female genitalia are highly distinctive in Phasia.

Theo
Edited by Zeegers on 17-04-2021 15:57
 
clovis
#3 Print Post
Posted on 02-05-2021 17:21
Member

Location: North France, lille
Posts: 937
Joined: 08.06.10

Your right, this is Phasia obesa...
In the mean time I caught a P pusilla: I now understand the "hairs on parafacial" critera!
many thanks for putting me in right direction!
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
smal black Tachinidae ? --> Phasia obesa Diptera (adults) 5 26-10-2025 08:41
Phasia obesa (female) Diptera (adults) 7 19-09-2025 14:58
Phasia aurigera (male) Diptera (adults) 6 08-09-2025 18:26
Phasia hemiptera? Ectophasia crassipennis (male) Diptera (adults) 6 07-09-2025 15:26
Tachinidae ID? Phasia barbifrons (female) Diptera (adults) 5 20-08-2025 18:23
Date and time
06 December 2025 14:55
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download


Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

04.12.25 20:02
Dr Michael von Tschirnhaus, a leading expert on Chloropidae and Agromyzidae, died on 16 September 2025 at the age of 86. He will be greatly missed by the international community. R.I.P.

03.12.25 12:46
Anyone has the scan of "Harkness, R. D.; Ismay, J. W. 1976: A new species of Trachysiphonella (Dipt., Chloropidae) from Greece, associated with an ant Cataglyphis bicolor (F.) (Hym., Formicidae)

01.12.25 22:29
I will try to fix the messages this month. We have to make some other configuration changes before software goes out of support at end of year.

29.11.25 21:57
I would prefer not to receive any more messages from diptera.info signed by Paul... (Thread reply notification)... Could they be signed by ‘The diptera.info team’?

19.11.25 12:31
It is with deepest sadness in my heart that I announce that on Saturday, November 15, one of the great minds of world dipterology, prof. Rudolf Rozkošny, left us forever. Please remember him with a

15.08.25 10:15
For those specialists not active on Facebook, I just ask to consider to join our group on FB. Please, be aware that it is not necessary at all to be active on FB outside the diptera group. Actually, n

15.08.25 10:13
We received requests to get permission to ask for ID in our Facebook group, https://www.facebo
ok.com/groups/1798
95332035235/ Until now we pointed to diptera.info, but since Paul's passing we not

23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

23.06.25 11:18
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

Render time: 0.49 seconds | 250,876,452 unique visits