Forum Entomologi Italiani

Un'ora fa scoperto questo pselafino nel materiale raccolto con trappola a caduta, e pochi giorni fa ricevuto una proposta per scattare una fotografia di qualcosa di simile... qui è il mio primo pselafino.
Mi dispiace che la preparazione non è perfetta come quela di Jan... ma e primo.

Un nome?

Raccolto con trapola a caduta, 9.VII-15.VII.2010, vicino a Bunta (Transylvania) 46.277588/23.124758, dimensione - meno di 2 mm.

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Cosmin-Ovidiu Manci
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cosmln's place - my blog
just insects
Dragonflies of Romania

Super, with X5 I presume ? How much cm between subject and end of lense ?

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https://www.flickr.com/photos/worldwidebeetles/

Bravo Cosmin, splendida foto.....soprattutto per il soggetto

Ovviamente non posso essere di molto aiuto, ma direi che appartenga al genere Bryaxis....

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Loris

Thank you Noel.
Around 4x ++ will not go to 5x because of the lights.
At 5x the distance is around 2,5 cm ... at 4x ~~~3-3.5 cm



Grazie Loris, in attesa di Jan

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Cosmin-Ovidiu Manci
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cosmln's place - my blog
just insects
Dragonflies of Romania

In Romania molti Bryaxis (Non riesco a determinare dalla foto).....................foto Bryaxis - femminile

Bryaxis Kugelann, 1794
attila (Saulcy, 1878)
bajulus (Hampe, 1863)
bulbifer (Reichenbach, 1816)
carinula (Rey, 1888)
carpathicus (Saulcy, 1875)
curtisii hungaricus (Reitter,1881)
femoratus (AubC, 1844)
nigripennis (Aubt, 1844)
= stussineri Reitter, 1881
nodicornis (AubC, 1833)
puncticollis (Denny, 1825)
reitteri (Saulcy, 1875)
roumaniae (Raffray, 1904)
ruthenus deubeli (Ganglbauer,1896)
sculptifrons Reitter, 1879
simplex (Baudi di Selve, 1869)
= ullrichii (Motschulsky, 1851)
splendidus goliath (Jeannel, 1922)
transsylvanicus Ganglbauer, 1897
validus AubC, 1844
= puncticollis (Denny, 1825)
viertli (Reitter, 188 1)
weisei (Saulcy, 1875)

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Research Fields
Taxonomy, ecology, biomonitoring , faunistic of Staphylinidae

Grazie Jan, you will receive it and maybe you can add an ID after.

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Cosmin-Ovidiu Manci
**********************
cosmln's place - my blog
just insects
Dragonflies of Romania

Hi guys. I do not know all the romanian Bryaxis species but I know most of them. According to antennae I´d say it´s B. glabricollis. BUT as far as I know there was a problem concerning B. glabricollis and B. ullrichi. Can´t say now if it a problem about syn. or if there are two species with different distribution. Some time ago, B. ullrichi was mentioned for the Czech republic but nowadays only B. glabricollis is mentioned for central Europe.

Bryaxis clavicornis (Panzer, 1809)
syn.glabricollis Reichenbach, 1816
Bryaxis ullrichi Motschulsky, 1851

Bryaxis clavicornis (Panzer, 1809) - not known from the territory of Romania (Non nota dal territorio della Romania)

Check list fauna Romania:
simplex (Baudi di Selve, 1869)
= ullrichii (Motschulsky, 1851)

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Research Fields
Taxonomy, ecology, biomonitoring , faunistic of Staphylinidae

Honza, I studied this problem a little bit and this is a result of it including my experiences:

- B. glabricollis is quite common species living in central Europe, mostly in deciduous forests, typically in the surrounding of Prague (Bohemian Karst, Vrané nad Vltavou...). Males are well characterised by penis and antennae.
- B. clavicornis is a rare species which I´ve only found around Hradec Králové (fluvial deposits of the Orlice). Males: penis and antennae.
- B. ullrichi: penis and it doesn´t live in central Europe.

It means:
1) I determine specimens from the Czech republic as B. glabricollis and not as B. ullrichi which is accidentally sometimes still mentioned in CZ check-list.
2) The depicted beetle could be B. ullrichi (penis needed!).
3) B. clavicornis is a different beetle than B. glabricollis (at first sight - the only possibility is that the both species were called "glabricollis" and this name remained valid to only one of them).

But... we never know if some clever taxonomist changes everything

la letteratura

V. Assing & M. Schülke (2006) published the next addenda to the staphylinids of Central Europe with the synonym of the next species:
Euplectus mutator Fauvel, 1895
= fauveli Guillebeau, 1888
Bryaxis ullrichii (Motschulsky, 1851)
= glabricollis (Schmidt-Goebel, 1838)
Rybaxis longicornis (Leach, 1817)
=laminata (Motschulsky, 1836

Löbl,Smetana, 2004

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Research Fields
Taxonomy, ecology, biomonitoring , faunistic of Staphylinidae

Bryaxis central Europe

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Research Fields
Taxonomy, ecology, biomonitoring , faunistic of Staphylinidae

Well, Honza. I know this literature and respect the author´s opinion. But I have my own

By the way, in this work, there are some mistakes and I´d be interested on which information are Mr. Löbl´s data based on.

In general I think there is nothing more to say about Bryaxis glabricollis. I´ll show you my specimens and maybe can turn you