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Hi,

yesterday i have seen this small fly (~4mm) running on a wall.
i collected the specimen and now some photo.
romania, nucsoara, ~ 650m, 27.april.2007

is looking very particular but i don't even know i what family to put that :)

maybe someone can help me with that, family, ID...

thanks,
cosmln
EDIT: title changed

1:

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2 and last:

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looking thru the gallery i have found Tachydromia umbrarum (Hybotidae). is this one?

cosmln

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Yes, Tachydromia and with long 1tar1 and strong spines on posterior part of mesotonum and scutellum, most probably T. umbrarum.
Nikita

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it is collected and on pins, if needed i can do thru binocular more specific photos.

i'm more specially interested because in (fauna europea)http://www.faunaeur.org/full_results.php?id=138323 is not listed for romania.

just let me know.

cosmln

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There was some recent thread about Hybotidae key, you can check yourself.
Or write message to Igor (it is Igor Shamshev - true family expert)
Or Paul may confirm.
At least change name to "T. umbrarum?" to get experts attantion;)
Nikita
T. umbrarum is common and widespread species, but I guess fauna of Romanian Hybotidae may be so far overlooked by expers...

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Hi Nikita,
I think your identification is correct. And indeed no records from Romania.
All the best,
Igor :)

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Igor,

Can you check whether this is also umbrarum or arrogans?

Link to the image

Another view of a different individual

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Gabor,

Your linked image is T. arrogans. BTW, you could find nice Nikita's pictures of Tachydromia on the Hybotidae Gallery.
Igor:)

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Nkita and Igor thanks for your help.
but i need some more information. i'm interested to collect some more specimens. some trichs for this? this exemplary was found from mistake on a wall (or this is the place where to continue searching?)

any additional info are welcome.
cosmln

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The wall as well as tree bark are typical places for Tachydromia.
And it is very interesting object to observe (I'm planing myself too).
Some species live on wet sand too.
Nikita

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Gabor,
Maybe this will also help you.
Chvala, 1975: 244 [May-September. Very common on tree-trunks, also on palings, walls, guard-stones or telegraph-poles.]
Igor

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BTW: Kovalev (1966) published very good observations on ecology of Tachydromiinae including Tachydromia (=Tachista) - but in Russian. If you can read, contact me via private message, I'll make a copy.
Igor

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I reed Russian!
I want copy!:D

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OK:D

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now is the time to remember what i have learned in school.
:)
please send a copy (cosminovidiuatyahoodotcom).
thank you,
cosmln

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Done:)

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I've just found an identical empid in a sample from England. Looking it up in the Royal Ensoc' key it came out as Sicodus arrogans, when I put this into the British Diptera checklist this had changed the name to Tachydromia costalis. So now I am totally confused!
Can someone tell me which is the correct name, please,
Sue

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The BioSystematic Database of World Diptera is your friend :) (where I heard this before? :D) -- http://www.sel.barc.usda.gov:591/diptera/names/searchno.htm

Tachydromia costalis is a valid name. ;)
http://www.sel.barc.usda.gov:591/FMPro?-db=names.fp5&-format=%2fdiptera%2fnames%2fdetailno.htm&-lay=www%20detail&-sortfield=unsorted&Name=Tachydromia%20costalis&-max=10&-recid=12876309&-find=

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Fantastic, thank-you, Jorge,
Sue:)

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Hi,
Both names are valid - two different species. :)
Igor

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Get these in the gallery! They are excellent photos:)