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Strumigenys tenuipilis Emery, 1915 - Formicidae
https://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=11&t=107736
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Autore:  Daniele Sechi [ 24/01/2026, 17:24 ]
Oggetto del messaggio:  Strumigenys tenuipilis Emery, 1915 - Formicidae

Si può andare oltre il genere?
Pyramica San Gregorio RID.jpg


Autore:  Lech Borowiec [ 25/01/2026, 20:36 ]
Oggetto del messaggio:  Re: Pyramica sp. - Formicidae

This is a member of the genus Strumigenys. Two species are very similar and possible to identification with our key:

4. Hairs on clypeal dorsum narrowly spatulate; in profile the hairs distinctly anteriorly curved
or anteriorly arched (Fig. 265.3) .......................................... S. tenuipilis (Emery), p. 421
─. Hairs on clypeal dorsum simple, fine and cylindrical throughout their length and tapered
or truncated apically; in profile the hairs mostly straight, inclined anteriorly (Fig. 266.3) ..
.............................................................................................. S. tenuissima (Brown), p. 42

Autore:  Daniele Sechi [ 26/01/2026, 10:59 ]
Oggetto del messaggio:  Re: Pyramica sp. - Formicidae

Thanks Lech! I'd say S. tenuissima, what do you think?
Pyramica San Gregorio clipeo.jpg


Autore:  Lech Borowiec [ 26/01/2026, 11:56 ]
Oggetto del messaggio:  Re: Strumigenys sp. - Formicidae

For me rather S. tenuipilis, clypeal setae are distinctly arched. Compare photos of head on AntWeb page:

https://www.antweb.org/bigPicture.do?na ... h&number=1
and
https://www.antweb.org/bigPicture.do?na ... h&number=1

In S. tenuissima clypeal setae are predominantly thin and straight.

Autore:  Daniele Sechi [ 26/01/2026, 12:45 ]
Oggetto del messaggio:  Re: Strumigenys sp. - Formicidae

Lech Borowiec ha scritto:
For me rather S. tenuipilis, clypeal setae are distinctly arched. Compare photos of head on AntWeb page:

https://www.antweb.org/bigPicture.do?na ... h&number=1
and
https://www.antweb.org/bigPicture.do?na ... h&number=1

In S. tenuissima clypeal setae are predominantly thin and straight.

Great! Thanks a lot!

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