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Board index » Sezione sistematica » Coleoptera » Elateroidea » Elateridae

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Adrastus montanus (Scopoli, 1763) (cf.) - Elateridae

22.VII.2016 - ROMANIA - EE, Romania : Moldova : Bacau : Comanesti


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alexaandru
PostPosted: 22/07/2016, 12:56 
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Nome: Pintilioaie Alexandru Mihai
Hello, I found this small (4 mm) elateridae in a hollow of a willow. Any idea about it's name?

IMG_0254.JPG



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IMG_0247.JPG


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Anostirus
PostPosted: 22/07/2016, 17:50 
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Nome: Giuseppe Platia
:hp: :hp: Species of the genus Adrastus. Difficult to define the species from a picture, it seems a male and the genitalia must be examined. By the blackish colour it could be montanus (Scopoli) or a melanic form of axillaris Erichson.

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alexaandru
PostPosted: 22/07/2016, 19:05 
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Many thanks Giuseppe :lov2: :D , tomorrow I will extract the genitalia and a picture will be uploaded here ;)

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alexaandru
PostPosted: 23/07/2016, 16:58 
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That's all I can get for the moment :oooner: , I hope this help :hi:

IMG_0266.JPG


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Anostirus
PostPosted: 23/07/2016, 18:37 
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Dear Alexandru,
your picture is not the aedeagus but only one of the parts where the genitalia are protected. The aedeagus is trilobate, penis and two lateral paramera.

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alexaandru
PostPosted: 23/07/2016, 18:42 
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ohh :oooner: , so the genitalia is inside this structure or I should look inside the beetle again ?

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Anostirus
PostPosted: 23/07/2016, 18:54 
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From the picture I cannot see if the aedeagus is inside!

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alexaandru
PostPosted: 26/07/2016, 12:50 
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This is all I can do with what I have at home, I don't know if it helps.... :oops:

IMG_0275.JPG


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Anostirus
PostPosted: 26/07/2016, 21:14 
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:hp: :hp: Dear Alexandru,
the apex of penis is folding, the base is semidestroyed. I think that we can determine it as Adrastus montanus (Scopoli) cf.

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alexaandru
PostPosted: 27/07/2016, 18:55 
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Dear Giuseppe, again thank you very much for your help ! :lov2: :birra: :hi:

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