Forum Entomologi Italiani

Hello,

I have an Agrilus I really cannot identify. It is a single female specimen. I tried: Schaefer 1945, coleo.net.de (aka Freude, Harde, Lohse with additions) and I cannot find it out. Unfortunately, I cannot remember on what plant I found it. I assume it is Salix, but I am not sure.

Length: 5.5 mm
Prosternal prominence with parallel side margins, terminated in a regular spear peak.
The last sternit without an apical excavation.

Tarsal claw's formula like here (right side of the image): http://www.coleo-net.de/coleo/texte/agrilus.htm Agrilus klauenetyp B, but I repeat, the specimen is a female.

The carinula near the posterior angle of the pronotum is very small (better said is a track of a carinula), and not touch the angle.
Do you have an idea?

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Ciao
Adrian

Debbo controllare (non sono a casa) ma non è che l'hai preso su Celtis australis o Ulmus?

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Francesco Izzillo

Celtis australis was definitely not there but I don't remember of Ulmus

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Ciao
Adrian

Stai pensando a Agrilus auricollis? Hai visto però che strano protorace ha questo esemplare? In particolare, la base del protorace è molto più stretta della base delle elitre, molto più che in auricollis.

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Maurizio Gigli
http://utenti.romascuola.net/bups
http://bup.xoom.it/

Si l'ho visto, ciò non di meno... comunque bisognerà fare un po di controlli.

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Francesco Izzillo

I totally agree with Maurizio. It is not Agrilus auricollis. I have tens of auricollis (right) and it is smaller and slender.

I put together for comparation a female of Agrilus auricollis and don't match

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Ciao
Adrian

Hi Adrian,

I think these are the same: http://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=73&t=21407&hilit=agrilus+delphinensis

But why they are bicolour?Can you take a picture of the frons of both specimens?

I think I messed it in this link. I wanted to put anAgrilus delphinensis on there. I will add you one of my 3 A. delphinensis soon. This one is 5.5 mm, the A. delphinensis are 3.5-4 mm length.

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Ciao
Adrian

I think Georgi is right and these two specimens belong to the same species.

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Maurizio Gigli
http://utenti.romascuola.net/bups
http://bup.xoom.it/

Yes he is right, I was wrong in the post with A. delphinensis I added the right pics there too.

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Ciao
Adrian

Then the only possible is A.pseudocyaneus.I haven't seen but this specimen matches the keys quite well.It is rare usually found in single specimens on Populus.

Thank you Georgi. I have to study more, but as I have knew, Agrilus pseudocyaneus is located to the Western Europe, and vicariates with A. delphinensis.

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Ciao
Adrian

I have studied the paper suggested by Georgi (Joro) (http://www.zoo.sav.sk/jendek/myweb/PDF/5.pdf) and it is definitely Agrilus (Arquagrilus) pseudocyaneus Kiesenwetter, 1857.

So another new species on the forum and in Romania. Case resolved.

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Ciao
Adrian

Happy to know the case is solved.
However, the subgenus Arquagrilus Alexeev, 1998 is considered a synonym of the subgenus Robertius Théry, 1947.

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Maurizio Gigli
http://utenti.romascuola.net/bups
http://bup.xoom.it/

I still don't have the paper of Alexeev, 1998. But I have seen the subgenera in Volkovitsh's page. I would like to have a way to can differentiate the subgenera of Agrilus. I see some specialists still consider only 2 subgenera of Agrilus in Europe (Uragrilus and Agrilus s. str.). I had not the possibility to study Buprestids out of Romania to can get a proper opinion. Well I have some American Acmaeodera. I will make pictures and post here in the forum, but I wanted to finish my Romanian Buprestidae first to can finish the catalogue. The Acmaeodera were sent to me by Mr. Byrd Dozzier I want to thank him here too.

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Ciao
Adrian