Chrysis pharaonum Mocsary, 1882 - Tunisia

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Chrysis pharaonum Mocsary, 1882 - Tunisia

Postby anillus » 12 Nov 2014 22:31

Ciao Paolo,

ho avuto questo graditissimo omaggio da un amico che è stato qualche giorno in Tunisia. Devo essere sincero; non ho la più pallida idea di cosa si tratti :?

Lunghezza: quasi 9 mm.

Tunisia
10 km est da Nefta
7 aprile 2014


Last edited by anillus on 17 Nov 2014 16:02, edited 1 time in total.
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Re: Chrysididae tunisino.

Postby Euchroeus » 14 Nov 2014 15:07

Ciao Andrea

bellissimo criside.
Appartiene al gruppo pallidicornis.
Dovrebbe essere C. giraudi o C. pharaonum.
Devi controllare la forma del clipeo e se ci sono dentini davanti alle tegule.
Se hai il Linsenmaier 1999 è meglio rispetto al 1959, perché nel 1968 ha fatto un po' di cambiamenti nelle sinonimie e non è facile muoversi in questo gruppo di specie.

Paolo
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Re: Chrysididae tunisino.

Postby anillus » 15 Nov 2014 00:35

Grazie Paolo per le indicazioni :beer:

Nel fine settimana provo a confrontare i caratteri che mi hai suggerito :ok:
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Re: Chrysididae tunisino.

Postby Alex » 15 Nov 2014 02:05

Wow, what spectacular colouration, great stuff!
Is it just me, or are species in the North African/Iberian region often more reddish/coppery like this? Compared to the more blue/green central European taxa that is. Its very pretty!

/Alex
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Re: Chrysididae tunisino.

Postby Euchroeus » 15 Nov 2014 13:37

Hi Alex,

you're right.
The colour of the N African and Iberian Chrysidids is different.
You can find this observation on Linsenmaier and Kimsey & Bohart too.
In Kimsey & Bohart (1991: 39) is specified: "A very different situation occurs in the Palaearctic Region, particularly in Europe" [...] "Species in Southern Spain, North Africa, and the Middle East tend to be more completely brassy or coppery".
This is true, but I would extend this observation to all the specimens in the Palaearctic region. For example, in Italy or Greece we have only few species entirely green or blue, and the same in S Palaearctic (e.g. Iran to Pakistan), in central Asia (Turkmenistan, Tadjikistan, Uzbekistan, etc.) while in the Russian Far East and Japan you can see almost the same colouration as in central and North Europe.
More in general, in forests and in tropical countries in the Oriental, Neotropical and Afrotropical Region (excluding S Africa and Madagascar) the dominant colour is blue, with very few exceptions of species living in deserts or particular habitats. In arid, xerothermic and dry places you will find red, golden, greenish-coppery, brassy colourations. Of course there's a close connection between the body colour and the habitat. This is true expecially in the Palaearctic, and partially in the Afrotropical Region (e.g. along the Nile and Southern Africa) and Oriental Region (e.g. India), where some unusual colour can be found (red head and rest of the body blue or violet).
Perhaps there's also a connection with the evolution of this family. If the Chrysidids evolved in the early Tertiary in the Palaearctic Region [Holarctic?], in the last colonized areas we have only or mainly blue species (Australian Region, Neotropical Region, even in deserts ... see the Chilean species).
Maybe we can open a new discussion on this topic.
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Re: Chrysididae tunisino.

Postby anillus » 16 Nov 2014 00:19

Ciao Paolo,

se ho capito bene quanto riportato sul Linsenmaier 1999, dovrebbe trattarsi di Chrysis pharaonum Mocsary, 1882

Aggiungo l'immagine del clipeo dove si vede una (piccola ma profonda) incisura triangolare.



Che dici Paolo, è corretta la determinazione? :)

Grazie mille.
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Re: Chrysididae tunisino.

Postby Euchroeus » 16 Nov 2014 11:22

Penso di si, ma il clipeo mi sembra malformato.
Tu pensa che mi manca questa specie nella mia collezione !! :doh:

Ciao!!!
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Re: Chrysididae tunisino.

Postby anillus » 17 Nov 2014 16:00

Grazie anche per questa ID :beer:

Euchroeus wrote:....... ma il clipeo mi sembra malformato.


E' un effetto di ombre, il clipeo è normalmente conformato :)

:thanks:

Andrea
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