Thread subject: Diptera.info :: Tachinidae, Sturmia bella ? -> yes

Posted by Tannerh on 11-03-2011 10:23
#1

This is probably Sturmia bella? Male specimen?
There is only few and rather old records from Finland at all!
Can anyone confirm this ID or give some help?
This emerged from Araschnia levana pupae. Not straight, but probably first emerged fly-larva from butterfly-pupae and then this emerged from reddish-brown pupae on other side tank.
Butterfly larvaes collected from nettle (Urtica dioica) in my backyard garden 19.8.2010
Place: Fennia, Nylandia, Siuntio (southern Finland)
Fly with naked (not hairy) eyes, overall lenght 7.0 mm. Is there mysticious "Sturmia-flecks" visible in abdomen image? ("Male: Tergit 4 ventral oder an der seite mit einem Sturmia-fleck".)

Edited by Tannerh on 12-03-2011 00:07

Posted by Tannerh on 11-03-2011 10:24
#2

Middle leg

Posted by Tannerh on 11-03-2011 10:26
#3

Outer male? genitalia

Posted by Tannerh on 11-03-2011 10:28
#4

Sturmia-flecks?

Posted by Tannerh on 11-03-2011 10:29
#5

Head with naked eyes

Posted by Tannerh on 11-03-2011 10:29
#6

Scutellum

Posted by Tannerh on 11-03-2011 10:31
#7

prothorax, dorsal (sorry poor quality image)

Edited by Tannerh on 11-03-2011 10:33

Posted by Zeegers on 11-03-2011 13:36
#8

The head is not developed completely, so it looks a bit strange, but it seems to be OK. The host is typical, so that is OK as well.
THe subapical scutellar bristles are set wide apart (as it should be in Sturmia)

You might check:
* palpus black
* 4 sternopleural bristles.

Theo

Posted by Tannerh on 11-03-2011 13:43
#9

Wov, many thanks to you, Theo
Perhaps I put it too early in to the poison-bottle? Just emerged?

Must check those things, you mentioned...

Posted by Zeegers on 11-03-2011 16:19
#10

Yes, you did. The vertex is unusually narrow.


Next time better !

Theo

Posted by Tannerh on 11-03-2011 23:01
#11

Yes, this have 4 sternopleural bristles

Posted by Tannerh on 11-03-2011 23:04
#12

This have also black palpus.
Is it possible to say if this is male or female specimen?

Posted by ChrisR on 11-03-2011 23:26
#13

Wow - looks like it flew into a wall! ;) It's got all the parts to say that it is Sturmia ... but it looks completely wrong, in the over all shape :)

Posted by Tannerh on 12-03-2011 00:03
#14

Thank you very much for determination, Theo & Chris and also Kaj Winqvist from Finland. (He advise me to ask help here from Tachnid-specialists)
This is rather remarkable record from Finland!
Last seen 1940 (over 70 years ago)
So it was so important to me to get right ID for this species.
Now I can save record to our database. (maybe without gender, male/female?)

Edited by Tannerh on 12-03-2011 00:18

Posted by JariF on 12-03-2011 07:29
#15

Great find, lucky You :)

Posted by Zeegers on 12-03-2011 10:55
#16

It is a male, females don't have Sturmia-spots


Theo

Posted by Zeegers on 12-03-2011 10:56
#17

To be clear, the ID is sure.


Theo

Posted by Tannerh on 12-03-2011 11:57
#18

Many thanks all of you.

Posted by Jaakko on 14-03-2011 14:08
#19

Nice.. I am expecting this one to be an expansive species in the north... weŽll see!

Edited by Jaakko on 14-03-2011 14:09