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Diptera.info :: Identification queries :: Other insects, spiders, etc.
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Lyniphiidae to identify, if possible
vldim
#1 Print Post
Posted on 23-06-2017 06:15
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Location: Milano, Italy
Posts: 39
Joined: 25.11.16

 Found at home in Milan (Italy) - June, 3 2017
vldim attached the following image:


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Vladimiro Cortese
 
vldim
#2 Print Post
Posted on 23-06-2017 06:16
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Location: Milano, Italy
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 Other picture
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Vladimiro Cortese
 
vldim
#3 Print Post
Posted on 23-06-2017 06:17
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Location: Milano, Italy
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 Last picture
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Vladimiro Cortese
 
Juergen Peters
#4 Print Post
Posted on 23-06-2017 17:12
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Location: northwest Germany
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 Hello,

here in central Europe I would suspect Lepthyphantes leprosus, but I am afraid, in the south there are many more species...
Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
WWW: http://insektenfo...
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vldim
#5 Print Post
Posted on 23-06-2017 17:42
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Location: Milano, Italy
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 Thanks, Jürgen.
In Fauna Europaea I find 63 (!) species for the genus Lepthyphantes, and it is clear it is impossible to determinate the species from these bad photos.
But, in your opinion, Lepthyphantes sp. is correct , or the genus too is not sure?
Thank you again
Vladimiro
Vladimiro Cortese
 
Juergen Peters
#6 Print Post
Posted on 23-06-2017 18:28
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 Hello Vladimiro,

vldim wrote:In Fauna Europaea I find 63 (!) species for the genus Lepthyphantes

the large genus Lepthyphantes has been divided into many new genera. I don't know how Fauna Europea reflects that already (by the way: I only find only 25 Lepthyphantes species in FE for the whole of Europe). According to the german SpiderWiki only 7 species occur in Italy (mainland).
Here in Germany there are only 4 species, and only 2 (L. leprosus and minor) live regularly in buildings. The other 2 additionally are very small animals (1,8-2 mm).

The additional species in Italy are L. agnellus (1.8-2.0 mm), L. garganicus (2.2 mm) - I think, these are too small for your animal - and L. messapicus (5 mm). But I don't know anything about this last species (occurance/habitats, colouration).

But, in your opinion, Lepthyphantes sp. is correct , or the genus too is not sure?

It looks a lot like Leptyphanthes. Most other "-phantes" are smaller and do not occur in houses. And the pale colouration matches L. leprosus very well. But I am no expert at all... Perhaps you can put the photos to http://forum.eu-a...tion=forum. It is a german forum, but questions in English are also welcome.
Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
WWW: http://insektenfo...
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vldim
#7 Print Post
Posted on 23-06-2017 19:38
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Location: Milano, Italy
Posts: 39
Joined: 25.11.16

 Hi, Jürgen,
thanks for your very interesting explanations.
I entered that forum, but it’s too difficult to use if one doesn’t know German.
Und, leider, Ich weiß nicht Deutsch.
-------------
In Faunaeur: 25 species in the first page, 25 in the second, 13 in the third.
--------------
Best regards
Vladimiro

Vladimiro Cortese
 
vldim
#8 Print Post
Posted on 24-06-2017 06:56
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Location: Milano, Italy
Posts: 39
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Juergen Peters wrote:
.....
The additional species in Italy are L. agnellus (1.8-2.0 mm), L. garganicus (2.2 mm) - I think, these are too small for your animal -....

Why?

In the second picture we see the spider is 2 mm. long, without legs.
Best regards
Vladimiro
Vladimiro Cortese
 
Juergen Peters
#9 Print Post
Posted on 24-06-2017 11:22
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Location: northwest Germany
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 Hello,

vldim wrote:
In the second picture we see the spider is 2 mm. long, without legs.

oh, I counted 3 mm. Then it becomes difficult...
Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
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vldim
#10 Print Post
Posted on 24-06-2017 14:18
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Location: Milano, Italy
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 Then. it's better Leptyphanthes sp.
or, perhaps, Lepthyphantes cfr. leprosus.

Do you agree?

Thanks a lot
Vladimiro
Edited by vldim on 24-06-2017 14:20
Vladimiro Cortese
 
Juergen Peters
#11 Print Post
Posted on 24-06-2017 14:48
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vldim wrote:
Then. it's better Leptyphanthes sp.
or, perhaps, Lepthyphantes cfr. leprosus.


I'm afraid, if it's only 2 mm, then there are more genera possible than Lepthyphantes, and it will be virtually unidentifiable from these photos... Frown
Best regards,
Jürgen

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Juergen Peters
Borgholzhausen, Germany
WWW: http://insektenfo...
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vldim
#12 Print Post
Posted on 24-06-2017 17:17
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Location: Milano, Italy
Posts: 39
Joined: 25.11.16

 Just as I feared
Thanks a lot anyway

Best regards
Vladimiro
Vladimiro Cortese
 
johnes81
#13 Print Post
Posted on 26-06-2017 00:45
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Location: Berlin, Germany
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 more likely a Tenuiphantes sp.
outdated material excludes buildings but I find Tenuiphantes on my balcony and windows.
 
vldim
#14 Print Post
Posted on 26-06-2017 11:18
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Location: Milano, Italy
Posts: 39
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 Very well!Smile

Thank you very much, Johnes.

Vladimiro
Vladimiro Cortese
 
johnes81
#15 Print Post
Posted on 26-06-2017 17:41
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Location: Berlin, Germany
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 Hope you have a pleasant day :-D

note: examination of genitalia is the only method useful for an accurate identification of a species. However, Tenuiphantes males have a very small and complex pedipalp. accurate id of a Tenuiphantes could be extremely difficult for a beginner. I've added a photo of T. flavipes pedipalp at 4x microscopic zoom for illustration. Even a 4x zoom has trouble focusing on a Tenuiphantes pedipalp.

Happy spider hunting...
johnes81 attached the following image:


[156.76Kb]
 
vldim
#16 Print Post
Posted on 26-06-2017 18:52
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Location: Milano, Italy
Posts: 39
Joined: 25.11.16

 Thanks!
A pleasant evening to you too.
Vladimiro Cortese
 
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