Thread subject: Diptera.info :: Tachinidae -> Panzeria / Ernestia rudis

Posted by maroo on 03-08-2020 08:48
#1

Found this, rather large Tachinidae in southern Sweden
2020 06 17

Is id possible?

Martin

Edited by maroo on 04-08-2020 05:58

Posted by maroo on 03-08-2020 08:49
#2

.

Posted by Zeegers on 03-08-2020 10:18
#3

Male Panzeria / Ernestia rudis.


Theo

Posted by maroo on 04-08-2020 05:56
#4

Thank you Theo!

/Martin

Posted by amaira on 04-08-2020 07:32
#5

A question. Same fly/individual but anorther photo.
Why this difference between the antennas?
The other Picture is from the Swedish "Artfakta"
https://artfakta.se/artbestamning/taxon/panzeria-rudis-200231?fbclid=IwAR1EbLwjUdAyCC9iu1cjJdp_3RmXlld3QT2u_4EQfWruv6-ItEKS8IzBy5U

Posted by Zeegers on 04-08-2020 07:41
#6

Interesting question. Rudis has a very rare lookalike P. vagans.
Difference is easy on male genitalia, but otherwise difficult.
I dismissed this option based on the thoracic pattern in the first pic. The second pic shows strong darkening on anterior part of scutellum, a feature suggesting vagans.

So I need to look into this.
* Can you tell whether hairs on eye are darker on upper half ?
* Can you tell whether abdominal tergites have lateral discal bristles ?

Thanks

Theo

Posted by amaira on 04-08-2020 08:15
#7

Interesting. Thanks for your replay Theo.
Sorry, I can't answer you, we have to wait for Martin.

Posted by amaira on 04-08-2020 08:21
#8

What about Panzeria puparum?

Posted by maroo on 04-08-2020 10:45
#9

Interresting discussion!
I have to check my pinned animal once I get home from holiday, will try get some pics then of what you'd asked for Theo


Posted by maroo on 24-08-2020 14:05
#10

Hi again
I have now looked again on my fly. Here are the answers to Theo's two qustions:
I can't see any difference in the colour of the hair in the eyes, they all seems to have a brown-yellow tone.
There are no discal bristels on the tergits.

/Martin

Posted by Zeegers on 24-08-2020 18:59
#11

So, both are rudis !

So, I checked my collecting. The antenna in Panzeria rudis is surprisingly variable , Your second male is the macho type with dark antenna, only some brown at base of third segment, and borad third antennal segment. Your first is a feminine male, with lots of yellow, also on basal segments, and narrow third segment.

Your two cases represent more or less both extremes, but many are intermediate. Of course, this is based on Central European material and I would need to study the genitalia to be very sure. (I found a cryptic new species in Russian Far East).

But for now, it really is Panzeria rudis, both of them !

note that a similar situation, far more extreme, occurs in Phasia and Ectophasia.

Theo

Posted by maroo on 26-08-2020 21:31
#12

Thank you for taking time to look in to this Theo!

Always good to have an correct id on these difficult ones

Martin

Posted by amaira on 28-08-2020 17:35
#13

Thanks from me too/ Anne-Marie