Gallery Links
Users Online
· Guests Online: 8

· Members Online: 0

· Total Members: 4,480
· Newest Member: LODA
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· RamiP< 5 mins
· Ectemnius00:15:27
· Andre Burgers00:34:59
· Constantin S...00:39:21
· Robertepe00:43:40
· Tony Irwin00:44:09
· Peter Andersen00:54:58
· Maik Hausotte00:59:24
· Paul Beuk01:00:39
· janoves01:11:15
Latest Photo Additions
View Thread :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Therevidae male - Pandivirilia melaleuca?
#1 Print Post
Posted on 23-05-2020 01:13
User Avatar


Location: Berlin, Germany
Posts: 3513
Joined: 28.07.07

This nice fly reminded me of a Cliorismia, but it isn't. The fermora have no yellow apices, and the genital is black. Van Veen's key (https://home.hccn...vidae.html) led to Pandivirilia melaleuca, but there is only few information available about this species, and the pictures I found show females. So it would be great to get a confirmation or correction of my ID! The location is a wood edge in southwestern Germany, about 20 km west of Stuttgart.
Thanks for help, Sundew
Sundew attached the following image:

#2 Print Post
Posted on 25-05-2020 19:03
User Avatar


Location: Berlin, Germany
Posts: 3513
Joined: 28.07.07

Any opinions?
#3 Print Post
Posted on 05-06-2020 13:37
User Avatar


Location: Berlin, Germany
Posts: 3513
Joined: 28.07.07

As P. melaleuca is probably shown in thread https://diptera.i...d_id=95129, I suppose I identified my male correctly.
#4 Print Post
Posted on 03-07-2020 12:39

Location: The Netherlands
Posts: 770
Joined: 22.11.11

Hello Sundew,

In Lyneborg's 1986 key it easy to get confused between P. melaleuca and P. caesia. For P. caesia males he gives the following account: "Abdomen in dorsal and caudal views dull black- ish, only silvery white tomentose on lateral parts of tergites". Now this is very difficult to judge. Fortunately I've now seen material of both species and lots of photo's. The vague blackness in the middle of the tergites makes this P. caesia. Also the habitus of P. melaleuca is far more silverish, compact and it misses the yellow wing base. For examples see photo's of;
P. caesia: https://waarnemin...003555.jpg and
P. melaleuca: https://waarnemin...283267.jpg

Kind regards,
#5 Print Post
Posted on 03-07-2020 16:23
User Avatar


Location: Berlin, Germany
Posts: 3513
Joined: 28.07.07

Ah - that's very interesting! Van Veen's key likewise says for P. caesia: "Male: abdomen in top view black with silverish dust only at the side margin", which I found to be incongruous with my fly. Also the habitat "little stream marshes at the start of streams" did not match, as my fly was on a woody hill with no trace of a stream anywhere. The flight period "June" of P. caesia seemed too late for my fly that was seen on May 15th. P. melaleuca was said to fly already in May. - The linked picture of P. melaleuca, however, looks very different (recalling Acrosathe), so, relying on your great experience, I gladly accept P. caesia - many thanks indeed!
Edited by Sundew on 03-07-2020 16:30
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Scaeva pyrastri (male)? Syrphidae 3 10-08-2020 20:36
Cecidomyiidae male and further? Diptera (adults) 2 09-08-2020 08:13
Eristalis tenax/pertinax ? > male E. pertinax Syrphidae 3 08-08-2020 16:51
Therevidae: Female of Thereva nobilitata ? Diptera (adults) 3 08-08-2020 11:04
Therevidae Diptera (adults) 3 07-08-2020 18:03
Date and time
11 August 2020 11:32


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.

Please, help to make
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
You must login to post a message.

08.08.20 14:31
ah ok ! I didn't knew oops !

07.08.20 08:12
They are already in Poland !

04.08.20 21:02
Today a Chrysomya albiceps found in North of France ! I was quite surprised !

02.08.20 10:10
Ok... lower case naming for images.. understood,Lothar

02.08.20 10:02
I uploadad a jpg, but it is not visible in the thread...Lothar

30.07.20 21:32
Have you checked the FAQ already?

30.07.20 02:23
cannot upload photos, it says wrong name. can someone please explain the exact procedure and the does and donts?

19.07.20 15:41
Don't use the preview, post directly.

17.07.20 01:44
Hi, apologies but also can't get photos to load. They are jpg, <300K, no spaces in names. Help? Smile

16.07.20 10:34
Hi Anders. No blanks in filename permitted

Render time: 1.59 seconds | 146,423,772 unique visits