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| Stenus biguttatus group - Staphylinidae http://www.entomologiitaliani.net/public/forum/phpbb3/viewtopic.php?f=243&t=83974 |
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| Autore: | Lenny [ 17/03/2019, 17:47 ] | ||
| Oggetto del messaggio: | Stenus biguttatus group - Staphylinidae | ||
Ciao a tutti  I would like to have your opinion on these guys. I can't see any difference in outer appearance between the right one and the one in the center. So maybe right and central one are S. longipes and left one is S. comma or biguttatus, but I don't know about the variation of the aedeagi. What do you think? Best regards
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| Autore: | giuseppe55 [ 25/03/2019, 20:55 ] |
| Oggetto del messaggio: | Re: Stenus biguttatus group |
Prova a confrontarli con i disegni da: A. Bordoni (2004) - Atlante degli edeagi degli Stenus della fauna italiana - Boll. Soc. Ent. It. - 136 (II). 12 - biguttatus 13 - jarrigei 14 - longipes 15 - comma aeneiceps Ciao Giuseppe |
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| Autore: | AetherisIgnis [ 26/03/2019, 1:00 ] |
| Oggetto del messaggio: | Re: Stenus biguttatus group |
The left one is S. comma, this species is distinctly more robust and usually larger than S. biguttatus or S. longipes. Two others are most likely S. longipes. The elytral spots in this species are distinctly larger than those in S. biguttatus and slightly shifted posteriorly. Also, this species has more distinct (in comparison to S. biguttatus or S. comma), often bluish, metallic tint of dorsum.
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| Autore: | Lenny [ 26/03/2019, 22:30 ] |
| Oggetto del messaggio: | Re: Stenus biguttatus group |
Thank you very much! S. longipes for the right ones was also my opinion, especially because of position and size of the spots. |
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