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Cryptocephalus (Pertuisanus) hirticollis Suffrian, 1847 - Chrysomelidae
http://www.entomologiitaliani.net/public/forum/phpbb3/viewtopic.php?f=146&t=100856
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Autore:  Daniele Sechi [ 27/10/2022, 10:46 ]
Oggetto del messaggio:  Cryptocephalus (Pertuisanus) hirticollis Suffrian, 1847 - Chrysomelidae

Da identificare...
Cryptocephalus rid.jpg


Autore:  Andrea Pergine [ 28/10/2022, 13:10 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

:birra: Che bellooo!!! :hp:
Mi verrebbe da dire trimaculatus ma come si sa solitamente non è mai quello che sembra più facile.... ;)
E poi in Sicilia mi sembra non sia segnalato :?
:hi:

Autore:  Davide Ambrosioni [ 28/10/2022, 14:32 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

Ma quella sul pronoto è una peluria? Nel caso C. trimaculatus, così come il simile C. imperialis, non dovrebbero averla. C'è l'hanno invece C. tristigma e C. ilicis, simili anche nella colorazione delle elitre. Delle due specie se ne parla qui: viewtopic.php?f=146&t=98998&hilit=Tristigma, e come si può notare dalla foto in quella discussione, i primi antennomeri sono piuttosto allungati, come in questo esemplare.
Il pronoto però non mi sembra metallico :?

Autore:  Lech Borowiec [ 28/10/2022, 18:31 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

Curious specimen. Shape of pronotum excludes European species.

Autore:  Daniele Sechi [ 29/10/2022, 12:42 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

Lech Borowiec ha scritto:
Curious specimen. Shape of pronotum excludes European species.

oh! Unfortunately it's a female

Autore:  Daniele Sechi [ 29/10/2022, 17:08 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

Ho trovato altre due femmine, visto che sembra interssante, probabilmente Marcello potrebbe cercare i maschi visto che gioca in casa (letteralmente :D )

Autore:  enneaccatre [ 02/11/2022, 10:44 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

The specimen is a female of Cryptocephalus hirticollis Suffrian. 1847. Yes, as Lech noticed, the pronotal outline looks a bit weird, but it falls within the range of variability, comparing the few specimens available to me. My opinion (see https://www.researchgate.net/publicatio ... _CHECKLIST) is that this taxon has to be considered as a separate species from C. tristigma and endemic to Sicily. The most remarkable thing is the unusual strong difference in size between males and females (as already reported by Burlini in 1956), which is missing in C. tristigma.

Autore:  enneaccatre [ 02/11/2022, 11:05 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

Here it is! :D

Sorry for the bad quality of the photo, taken in a hurry with a cellphone...

Allegati:
hirticollis.jpg


Autore:  wgliinsetti [ 02/11/2022, 11:40 ]
Oggetto del messaggio:  Re: Cryptocephalus (Pertuisanus) hirticollis Suffrian, 1847 - Chrysomelidae

Ho provveduto a scindere le due specie come indicato da Davide nella pubblicazione linkata :hi:

Autore:  Maurizio Bollino [ 02/11/2022, 11:59 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

enneaccatre ha scritto:
The specimen is a female of Cryptocephalus hirticollis Suffrian. 1847. Yes, as Lech noticed, the pronotal outline looks a bit weird, but it falls within the range of variability, comparing the few specimens available to me. My opinion (see https://www.researchgate.net/publicatio ... _CHECKLIST) is that this taxon has to be considered as a separate species from C. tristigma and endemic to Sicily. The most remarkable thing is the unusual strong difference in size between males and females (as already reported by Burlini in 1956), which is missing in C. tristigma.


Davide, let me have the aedeagus of hirticollis and maybe I'll solve the riddle .... ;) ;) ;)

Autore:  Daniele Sechi [ 02/11/2022, 15:45 ]
Oggetto del messaggio:  Re: Cryptocephalus sp. - Chrysomelidae

enneaccatre ha scritto:
The specimen is a female of Cryptocephalus hirticollis Suffrian. 1847. Yes, as Lech noticed, the pronotal outline looks a bit weird, but it falls within the range of variability, comparing the few specimens available to me. My opinion (see https://www.researchgate.net/publicatio ... _CHECKLIST) is that this taxon has to be considered as a separate species from C. tristigma and endemic to Sicily. The most remarkable thing is the unusual strong difference in size between males and females (as already reported by Burlini in 1956), which is missing in C. tristigma.

Grazie!

Autore:  Lech Borowiec [ 03/11/2022, 9:28 ]
Oggetto del messaggio:  Re: Cryptocephalus (Pertuisanus) hirticollis Suffrian, 1847 - Chrysomelidae

Hi Davide, thanks for the explanation. I never seen specimens of C. tristigma from Sicily and the shape of the pronotum of this specimen photographed by Daniele is so surprising, and the specimen looks very stout compared to the specimens of C. tristigma I have seen. Well, we learn all our lives. Thanks Davide.

Autore:  enneaccatre [ 04/11/2022, 11:40 ]
Oggetto del messaggio:  Re: Cryptocephalus (Pertuisanus) hirticollis Suffrian, 1847 - Chrysomelidae

Lech Borowiec ha scritto:
Hi Davide, thanks for the explanation. I never seen specimens of C. tristigma from Sicily and the shape of the pronotum of this specimen photographed by Daniele is so surprising, and the specimen looks very stout compared to the specimens of C. tristigma I have seen. Well, we learn all our lives. Thanks Davide.


:hi:

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