Vulgichneumon? -> Exephanes sp. (cf. fulvescens)

Vulgichneumon? -> Exephanes sp. (cf. fulvescens)

Postby Jesper Lund on 24 Mar 2017, 10:21

This creature was seen i Denmark (Zealand) august 12., 2012.

Vulgichneumon has been suggested ...

Kindly Jesper
Attachments
120812 016.jpg
120812 033.jpg
Last edited by Jesper Lund on 28 Mar 2017, 15:15, edited 3 times in total.
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Re: Vulgichneumon?

Postby Camille Thirion on 24 Mar 2017, 11:20

Ichneumon sp.
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Re: Vulgichneumon?

Postby Jesper Lund on 24 Mar 2017, 13:49

OK - so be it ;-)

Thanks a lot, Camille.

kindly Jesper
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Re: Vulgichneumon?

Postby Geir_Oersnes on 24 Mar 2017, 15:07

I think this is Exephanes femoralis (female), not Ichneumon sp.!
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Re: Vulgichneumon?

Postby Camille Thirion on 25 Mar 2017, 10:31

Yes :cry:
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Re: Vulgichneumon?

Postby Jonas Lutz on 25 Mar 2017, 20:45

Exephanes femoralis Would be new to Denmark.
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Re: Vulgichneumon?

Postby Jesper Lund on 25 Mar 2017, 21:52

:)
Thats great - thanks a million Geir and Camille !!!

It seems to be new for Denmark - I havent tried that before.

kindly Jesper
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Re: Vulgichneumon? -> Exephanes femoralis

Postby Jesper Lund on 26 Mar 2017, 22:30

Since this might be a first find for Denmark, questions have been raised if these photos are sufficient material for a sure identification. More photos can be seen at http://www.fugleognatur.dk/forum/show_m ... ForumID=35
Geir (and anyone else): can you be more specific on crucial determinating features/details? (Or other relevant information.)

kindly Jesper
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Re: Vulgichneumon? -> Exephanes femoralis

Postby Geir_Oersnes on 27 Mar 2017, 13:04

The reason I think it is Exephanes is the shape of the hypopygium and that it has long hairs on cerci (also called pygostyles in Perkins key). Attached photo showing the long hairs on cerci on one of my own specimens of Exephanes occupator (see below).

I have checked the key to Exephanes in Hinz & Horstmann (see http://www.biodiversitylibrary.org/part/66548#/summary), and compared with photo of E. femoralis in Camille's gallery. It's not possible to check all key charachters from the photos! For example width/length index of fourth segment of flagellum and width/length index of femora... (that's why it needs to be collected!). The other possible species is Exephanes fulvescens, also not known from Denmark according to Taxapad! Don't think it's any of the other Exephanes species.

Actually, maybe E. fulvescens is more likely. I've gone through the descriptions in Hinz & Hortmann again, fulvescens have normally yellowish-brown trochanters, femoralis black. Trochanters are yellowish-red (brown) on the photographed specimen.

Photo of E. fulvescens at BOLD: http://www.boldsystems.org/index.php/Ta ... xid=269749


So that means this need to be collected for a certain ID! (I was a bit too quick with my first suggestion...).
Attachments
exephanes occupator (northern norway).jpg
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Re: Vulgichneumon? -> Exephanes femoralis

Postby Gunnar on 27 Mar 2017, 15:19

I paste the key from Hinz & Horstmann 2000:
- Fühler schlank, das vierte Glied 2,4-2,6 mal so lang wie breit; Scutellum verhältnismäßig hoch gewölbt; Clypeus lateral und apical hellrotbraun gezeichnet .... fulvescens
- Fühler weniger schlank, das vierte Glied höchstens 2,1 mal so lang wie breit; Scutellum nur wenig gewölbt; Clypeus schwarz; Flagellum proximal gelbbraun .... femoralis

Scutellum (from sideview picture); verhältnismäßig hoch gewölbt.

The ecology can tell much about the probability for one or the other of fulvescens and femoralis:
The hosts for both fulvescens and femoralis are Noctuidae (Ugle).
femoralis: Marehalmugle (Longalatedes elymi). Hostplant is Leymus arenarius. Seashore-habitats.
fulvescens: Slange-stængelugle (Lateroligia ophiogramma). Hostplants are Phalaris arundinacea and Glyceria maxima. Moist habitats.

Do you know the name of the grass it is sitting on?
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Re: Vulgichneumon? -> Exephanes femoralis

Postby Jesper Lund on 27 Mar 2017, 17:50

Thanks for your input, Gunnar.

Lateroligia ophiogramma is observed at the location (my garden), Longalatedes elymi isn’t.
The distance to shore is ca. 12 km, I don’t think Leymus arenarius (Marehalm) is any closer.
The grass might be Glyceria maxima (Høj sødgræs), but im not sure.
The pictures are taken by a garden pond, in an area of swamp, meadows and trees.
I guess that suggests fulvescens ...

kindly Jesper
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Re: Vulgichneumon? -> Exephanes femoralis

Postby Jesper Lund on 27 Mar 2017, 22:21

Supp. photos.

kindly Jesper
Attachments
scut 120812 010.jpg
femur 120812 037.jpg
antenne 120812 029.jpg
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Re: Vulgichneumon? -> Exephanes femoralis?

Postby Gunnar on 28 Mar 2017, 09:18

Clypeus lateral und apical hellrotbraun gezeichnet?
May be I can see a brownish tint on apical part of clypeus?
Das vierte Glied 2,4-2,6 mal so lang wie breit?
Probably?

If you have found this one in your own garden, maybe you can try to collect one this summer by the same pond?
Most experts do not want to determine ID from photos alone. It is very easy even for experts to be a bit to quick (learning by failing!).
I guess that Riedel is busy with Campopleginae-revisions (Casinaria) at the moment, even if his main interests are Ichneumoninae and Metopiinae.
I guess that you need confirmation from expert before this one is accepted as new to Denmark?

I am no expert, but my guess is that the probability for this one being fulvescens is 95 % +
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Re: Vulgichneumon? -> Exephanes femoralis?

Postby Jesper Lund on 28 Mar 2017, 15:13

Thanks a lot.

For now I call it Vulgichneumon sp.(probably fulvescens).

(But please ad comments if you have ...)

kindly Jesper
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