Gallery Links
Users Online
· Guests Online: 18

· Members Online: 0

· Total Members: 5,043
· Newest Member: Chalybion
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Zeegers< 5 mins
· libor00:35:05
· Michael Carlsen00:42:20
· Auratus00:52:08
· Clive Lau06:45:42
· Azuro07:11:04
· Mario Renden07:31:36
· weia08:20:06
· Ira Orlicek08:22:28
· Carnifex09:36:07
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Other insects, spiders, etc.
Who is here? 1 guest(s)
 Print Thread
parasitic wasp w conspicuous wings -> Heydenia pretiosa
Carnifex
#1 Print Post
Posted on 21-10-2019 20:18
User Avatar

Member

Location: Vienna, Austria
Posts: 1946
Joined: 23.06.15

Hi,
can this wasp be identified (family/genus maybe)? I think I lost the sample, so these are all the images I can provide. Found in June in Vienna, near forest edge.

inaturalist-open-data.s3.amazonaws.com/photos/42732124/large.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/42732076/large.jpeg
Edited by Carnifex on 20-11-2022 21:53
Cheers, Lorin

Font Color
All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
Marc T
#2 Print Post
Posted on 22-10-2019 10:53
User Avatar

Member

Location: Hamburg, Germany
Posts: 248
Joined: 30.08.11

Hi Lorin,

just went through my "illustrated key to West-Palearctic Genera of Pteromalidae" from Boucek and Rasplus (1991). Your specimen could be a female Heydenia pretiosa, in the key described as follows:

"Pronotum long and narrow, with lower edges of lateral pannels widening forwards. Thorax virtually bare. Forewing with 3 dark bands, proximal one small, attached to enlarged parastigma which bears a tuft of black bristles. Antennae in both sexes simple, filiform, without conspicuous pilosity"

further down: "Only H. pretiosa FĂ–RSTER. Parasite of scolytids; adults apprear on trunks and twigs of infested dying trees. Whole Europe."

The picture in the key looks pretty similar to your images.

As chalcids are a quite diverse group, it might also be a different species or even a member of another family. Maybe you can see more details on your original pics to confirm or reject Heydenia.

Best regards,

Marc
 
Carnifex
#3 Print Post
Posted on 22-10-2019 12:44
User Avatar

Member

Location: Vienna, Austria
Posts: 1946
Joined: 23.06.15

Yes, thank you so much, Marc!
Indeed, the specimen was found on a pile of tree logs, where also various xylophagous beetles have been found. So habitat would be suitable as well. After looking at more images, I am very confident it is the suggested species.
Cheers, Lorin

Font Color
All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Sciomyzid with spotted wings (11.06.25) --> Hydromya dorsalis Diptera (adults) 5 14-06-2025 21:18
Megaspilidae (parasitoid wasp) Other insects, spiders, etc. 1 04-02-2025 21:30
Small wasp - ID? --> Nysson spinosus or Nysson interruptus (Crabronidae) Other insects, spiders, etc. 7 01-02-2025 16:21
Wasp drone ? Vespula vulgaris ? Other insects, spiders, etc. 9 28-11-2024 16:20
Ecuadorian wasp-mimicking fruit flies (Neoidiotypa?) Diptera (adults) 5 26-08-2024 18:24
Date and time
14 July 2025 08:04
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.

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!

02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

08.05.25 18:22
I have

03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

10.03.25 18:02
We are looking for a new webmaster https://diptera.in
fo/forum/viewthrea
d.php?thread_id=11
5023&rowstart=20

04.03.25 17:10
Please use the link posted below to remember and honour Paul, if you wish

Render time: 0.61 seconds | 231,269,636 unique visits