Forum Entomologi Italiani

This specimen of Agrilus (Spiragrilus) I caught it on Quercus leaves, now I think it accidentally landed. It is a female, so I do not have an aedeagus. About 6 mm length.
Thank you very much in advance

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Ciao
Adrian

Nessuno si esprime?

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

Questo è un esemplare molto difficile. Per determinarlo con sicurezza dovrei avere qui l'esemplare. Dalla foto sembrerebbe non avere la carinula preomerale, quindi tenderei ad escludere possa trattarsi di un solieri, che oltrettutto ha una colorazione decisamente più brillante e rameica. Tenderei a includerlo nel gruppo dell'hyperici*, anche se è un po' diverso da quelli che si incontrano da noi. Se invece Adrian mi conferma che l'es. ha la carinula preomerale, allora mi rimangio tutto.

* il gruppo hyperici è ancora tutto da scoprire, determinate come tali qui in Italia ci sono almeno due specie differenti, se non tre.

No, the prehumeral carinula is not present, I see just a very little track but it not touches the posterior angle of the pronotum. The color is not that bright as it is in A. hyperici. I will take a more detailed picture of the posterior angles of the pronotum next days.

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Ciao
Adrian

Ok Adrian, thank you, i'm waiting for it. Your specimen is very interesting. Is it a female I suppose?

Yes, unfortunately it is a female and I found it on Quercus leaves (I suppose accidentally landed).

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Ciao
Adrian

I took 3 pics of the posterior angles of the pronotum: right angle with light from one side, left angle with light from one side, left angle with light from all 3 lamps. I hope the images are good. Yesterday, when I was looking through the stereomicroscope I thought they are not carinulae, but now I see some small ones.

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Ciao
Adrian

Yes Adrian,
now the premarginal carinulae are well visible, contrary to the first pictures. The form of these carinulae is characteristic of Agrilus solieri. Also the color of the last pictures is more cupreous and not bronze. In conclusion, my opinion is that the specimen is Agrilus solieri.
Cordially
Gian

Thank you. This is what I thought too. I have to rethink the way of taking pictures, maybe I will use less diffusers or different intensity of light to make the structure more visible.

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Ciao
Adrian