Benvenuto Ospite

Forum Entomologi Italiani

www.entomologiitaliani.net/forum
 
Oggi è 22/06/2025, 8:43

Tutti gli orari sono UTC + 1 ora [ ora legale ]

Strongylogaster xanthocera (Stephens 1835) ♀ - Tenthredinidae - Selandriinae

18.V.2008 - FRANCIA - EE, Anost (Dipart. Saône-et-Loire)


nuovo argomento
rispondi
Pagina 1 di 1 [ 1 messaggio ]
Autore Messaggio
MessaggioInviato: 02/08/2015, 1:30 
Avatar utente

Iscritto il: 22/11/2010, 18:16
Messaggi: 1089
Località: Donzy (Bourgogne : Dipart. Nièvre) - Francia
Nome: Jean-Pierre Balmer
Capture in Cne Anost (Dépt. Saône-et-Loire - France) - 19 V 2008
Length : 8.7/8.9 mm
======
Biblio :
- Enslin 1912/1918 : Die Tenthredinoidea Mitteleuropas - p.204/205
- Macek 2010 : Taxonomy ... Strongylogaster ... - in "Acta Entomologica Musei Nationalis Pragae - vol.50(1) p.253/271"
- Zhelokhovtsev 1988 : in Medvedev (Ed.) - Keys ... USSR. III. Hym. Part 6 Symphyta (Translation in English 1994)
-----
Key of Genus see : viewtopic.php?f=375&t=37914&hilit=+selandriinae
[lineata = multifasciata]
----
For all the Authors the coloring of Antennae (& Legs) is quoted in the first at all, but all do not see it in the same way !
* The Macek’s key does not envisage the intermediate characteristics (for example the Antennae are black or yellow to reddish).
    The coloring of Femora 3 is not significant.
    The coloring of Sternite 7 is inaccurate for multifasciata (or is it the base of the Sexual Organs placed after ?)
* The Zhelokhovtsev’s key uses a criterion on the depth of the apical notch on the Sternite 7 (but I have a bad binocular magnifying glass !)
    The criterion on the length of sub-apical tooth on Tarsi 3 is it reliable ?
* The Enslin’s key is not lucid as regards the colorings

All our french captures (in 6 departments : from the Oise to Jura) were made in woody or forest zones, except one.
It well seems that only the extreme colorings allow to identify with certainty the species.
* Antennae with Flagellum entirely black ==> multifasciata
... All have the ventral apex of Abdomen entirely red or very mainly red (as shows it the photo attached of multifasciata)
* Antennae with Flagellum partially black
... A single french capture : the ventral apex of Abdomen is entirely black (see photo)
* Antennae entirely yellow to reddish ==> xanthocera

Being color of the Sexual Organs, our capture is xanthocera (confirmed by 3 photos in http://www.boldsystems.org/index.php/Ta ... xid=339651)
----
NB : xanthocera & multifasciata have the same habitus
---
S. xanthocera & multifasciata was also captured in Italy


n° 4415 F (+ 4744 F) - Image.jpg

Top
profilo
Visualizza ultimi messaggi:  Ordina per  
nuovo argomento
rispondi
Pagina 1 di 1 [ 1 messaggio ]

Tutti gli orari sono UTC + 1 ora [ ora legale ]


Chi c’è in linea

Visitano il forum: Nessuno e 1 ospite


Non puoi aprire nuovi argomenti
Non puoi rispondere negli argomenti
Non puoi modificare i tuoi messaggi
Non puoi cancellare i tuoi messaggi
Non puoi inviare allegati

Cerca per:
Vai a: