is this Bromius obscurus?
lenght : 5.5 mm
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| Bromius obscurus (Linnaeus, 1758) - Chrysomelidae http://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=146&t=35661 |
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| Autore: | alexaandru [ 22/06/2012, 17:59 ] |
| Oggetto del messaggio: | Bromius obscurus (Linnaeus, 1758) - Chrysomelidae |
is this Bromius obscurus? lenght : 5.5 mm |
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| Autore: | giuseppe55 [ 22/06/2012, 19:13 ] |
| Oggetto del messaggio: | Re: Chrysomelidae - Romania |
alexaandru ha scritto: is this Bromius obscurus? Ciao Alexandru, penso che la tua determinazione sia corretta. Giuseppe |
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| Autore: | Nomas [ 22/06/2012, 22:18 ] |
| Oggetto del messaggio: | Re: Chrysomelidae - Romania |
Hi Alexandru, yes it is Bromius obscurus in the form with brown elytra. In the past, this aberration was a pest of cultivated vineyards. It ceased to be harmful when the plant of European vines was grafted on rootstoch of American vines. This color form was very common in Italy in the past when cultivated ungrafted European vines. Currently prevails cromatic the form with elytra entirely black, it often feeds on plants of Epilobium. |
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| Autore: | Nomas [ 22/06/2012, 22:55 ] | ||
| Oggetto del messaggio: | Re: Chrysomelidae - Romania | ||
Here a picture of Bromius obscurus ab. villosulus with its damage to the grapevine.
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| Autore: | alexaandru [ 05/07/2012, 13:21 ] |
| Oggetto del messaggio: | Re: Bromius obscurus (Linnaeus, 1758) - Chrysomelidae - ab. villosulus |
Thank you Renato for informations !   
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