Hello, any idea about this Agrilus? It is maybe Agrilus angustulus?
lengh 6.3 mm
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| Agrilus (Agrilus) cuprescens (Ménétriés, 1832) - Buprestidae http://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=73&t=106221 |
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| Autore: | alexaandru [ 31/01/2025, 18:40 ] |
| Oggetto del messaggio: | Agrilus (Agrilus) cuprescens (Ménétriés, 1832) - Buprestidae |
Hello, any idea about this Agrilus? It is maybe Agrilus angustulus? lengh 6.3 mm |
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| Autore: | Autarcontes [ 01/02/2025, 11:44 ] |
| Oggetto del messaggio: | Re: Agrilus |
Hi Alex I think it is Agrilus cuprescens, but to be sure I need photo of ventral side Gian |
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| Autore: | AdYRuicanescu [ 03/02/2025, 14:00 ] |
| Oggetto del messaggio: | Re: Agrilus |
I think the same. |
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| Autore: | alexaandru [ 06/02/2025, 19:32 ] |
| Oggetto del messaggio: | Re: Agrilus |
Thank you guys, here are the pictures with the ventral side. If possible, can you tell me the characteristics for A. cuprescens that can be seen on the ventral area?   |
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| Autore: | Max10 [ 22/02/2025, 13:58 ] |
| Oggetto del messaggio: | Re: Agrilus |
Hi Alexandru! I think is not A.angustulus for the marginal line of S5 (emarginated in A.angustulus, linear in this specimen). The doubt is between A.cuprescens and A.viridis. I could say A.viridis for the lateral margin of apical elytrae slightly sinuose and the posterior angles of pronotum not rounded… but i'm not an expert, this is just my opinion 
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| Autore: | alexaandru [ 25/02/2025, 17:58 ] |
| Oggetto del messaggio: | Re: Agrilus |
Thank you Massimiliano , let's wait for the experts opinions
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| Autore: | AdYRuicanescu [ 27/02/2025, 12:20 ] |
| Oggetto del messaggio: | Re: Agrilus |
Max10 ha scritto: Hi Alexandru! I think is not A.angustulus for the marginal line of S5 (emarginated in A.angustulus, linear in this specimen). The doubt is between A.cuprescens and A.viridis. I could say A.viridis for the lateral margin of apical elytrae slightly sinuose and the posterior angles of pronotum not rounded… but i'm not an expert, this is just my opinion Dear Massimiliano, Agrilus angustulus has its aedeagus slightly assymetric, the suture between the paramerae is not straight, but in an elongated "S" shape. The shape of the preapical margins can be variable from an individual to other. Try to investigate a series of 10-20 specimens. The ratio between length of the pronotum and length of the elytra is more in favor of elytra in A. viridis. This one is Agrilus cuprescens. The host plant could be a very good criterion if it would be known. |
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| Autore: | Max10 [ 27/02/2025, 14:36 ] |
| Oggetto del messaggio: | Re: Agrilus |
AdYRuicanescu ha scritto: Dear Massimiliano, Agrilus angustulus has its aedeagus slightly assymetric, the suture between the paramerae is not straight, but in an elongated "S" shape. The shape of the preapical margins can be variable from an individual to other. Try to investigate a series of 10-20 specimens. The ratio between length of the pronotum and length of the elytra is more in favor of elytra in A. viridis. This one is Agrilus cuprescens. The host plant could be a very good criterion if it would be known. Thanks for your kind explanation, Adrian  Can you indicate me the difference in ratio of lenght pronotum/elytra between A.viridis and A.cuprescens, please? I'm very interested in it 
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| Autore: | AdYRuicanescu [ 28/02/2025, 8:22 ] |
| Oggetto del messaggio: | Re: Agrilus |
Well, even my images taken by screenshot are too big to be allowed here, if I shrink them, the text will not be readable. I will only give you my measurements (in pixels on the photos). Corrigenda: When I said pronotum it means head+pronotum. Agrilus cuprescens: 128/383=0.334 Agrilus viridis: 136/442=0.307 |
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| Autore: | Max10 [ 28/02/2025, 18:49 ] |
| Oggetto del messaggio: | Re: Agrilus |
AdYRuicanescu ha scritto: Well, even my images taken by screenshot are too big to be allowed here, if I shrink them, the text will not be readable. I will only give you my measurements (in pixels on the photos). Corrigenda: When I said pronotum it means head+pronotum. Agrilus cuprescens: 128/383=0.334 Agrilus viridis: 136/442=0.307 Thanks a lot, Adrian!
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| Autore: | AdYRuicanescu [ 28/02/2025, 20:43 ] |
| Oggetto del messaggio: | Re: Agrilus |
I hope it helps. Also, Agrilus viridis is visibly bigger than Agrilus cuprescens. |
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| Autore: | alexaandru [ 01/03/2025, 9:37 ] |
| Oggetto del messaggio: | Re: Agrilus |
So this one is Agrilus cuprescens, thanks a lot guys!
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