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Galleria Tassonomica
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
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Pepsis
Moderatore
Città: Roma
5036 Messaggi
Flora e Fauna |
 Inserito il - 01 dicembre 2011 : 13:18:08
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Nope, it's a Sicariidae, Loxosceles rufescens.  |
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 19:55:19
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Thanks Allesandro.
So is this the same species ?
Regards
Albert
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 19:55:57
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Pepsis
Moderatore
Città: Roma
5036 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 20:24:18
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No, that is a young Filistata insidiatrix (Filistatidae).
They may appear superficialliy similiar, but there are several noticeable differences such as: overall habitus, shape and thickness of legs, hairyness and especially the shape of the prosoma. They main difference, however, lies in the number of eyes. Sicariidae, together with several other families such as Dysderidae, Segestriidae, Scytodidae.. belong to a clade of six eyed spiders (they lack the anterior median eyes). They have a very particular ocular disposition with eyes arranged in 3 separate diads.
The Filistatidae, on the other hand, have eight eyes like the rest of the majority of spider families. The eyes are arranged in two more or less straight rows, grouped on a tubercule.
I hope this cleared up your doubts!
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 20:36:15
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Alesandro, you are truly an expert, and slso very kind.
I would never have been able to differentiate between the two without your help.
Once again many thanks.
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elleelle
Moderatore Trasversale
Città: roma
Regione: Lazio
33001 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 22:23:51
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Alessandro has explained you everything. Anyhow, I think that Filistata sp. is not the spyder that you can easely mistake with Loxosceles sp.
You more likely might mistake it with Tegenaria sp., another long legged spyder that you can find on walls, even inside the buldings.
Filistata, instead, usually lives outdoor and very rarely leaves spontaneusly its web carpened burrow, except if someone destroys it (in your photo the spider looks injured )
If you observe this spider in his web and burrow, it is easy to discriminate it from any other one.
 luigi
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
Inserito il - 01 dicembre 2011 : 23:04:28
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Thanks Luigi.
To experts like you and Alessandro it is easy to identify spiders, but to someone who like me knows very little about them it is not so easy. That is why your help is so much appreciated.
Going through my pictures I cam across this one. Would the small creatures to the right of the spider be a spider too ?
If I remember rightly I came across this spider when I turned over a stone.
Regards
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elleelle
Moderatore Trasversale
Città: roma
Regione: Lazio
33001 Messaggi
Flora e Fauna |
Inserito il - 02 dicembre 2011 : 10:43:06
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Only Alessandro and Piergiorgio are experts I am an observer only 
The small beast in your photo is a mite similar to this one.
luigi
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Modificato da - elleelle in data 02 dicembre 2011 10:43:43 |
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xilpa
Utente Senior
Città: Malta
1461 Messaggi
Flora e Fauna |
Inserito il - 02 dicembre 2011 : 15:54:26
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Hi Luigi
You might not be an expert but you are very close.
Many thanks.
Albert
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Loxosceles rufescens
