Diptera.info :: Identification queries :: Diptera (adults)
 Dolichopodidae, nE HU, 05.2010
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| pwalter |
Posted on 03-05-2010 19:52
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 Member Location: Miskolc, Hungary Posts: 3555 Joined: 06.11.08 |
Hi, this was about 3 mms long, on a rock in the mountains, but not far from a lake. Can someone help?
pwalter attached the following image:  [81.11Kb] Walter Pfliegler - Amateur Nature Photographer from Hungary (and molecular biologist) |
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| Stefan Naglis |
Posted on 03-05-2010 20:49
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Member Location: Switzerland Posts: 738 Joined: 27.12.08 |
Sybistroma inornatus Lw. (formerly Hercostomus). |
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| Igor Grichanov |
Posted on 04-05-2010 23:38
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 Member Location: St.Petersburg, Russia Posts: 1798 Joined: 17.08.06 |
Sybistroma inornata
Igor Grichanov |
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| Stephen R |
Posted on 06-05-2010 13:55
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 Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
Why isn't it Sybistroma inornatum? Sybistroma is neuter (as in Sybistroma sciophilum (Loew)). Stephen. Edited by Stephen R on 06-05-2010 14:01 |
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| Igor Grichanov |
Posted on 14-05-2010 09:31
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Member Location: St.Petersburg, Russia Posts: 1798 Joined: 17.08.06 |
Stephen, the gender of Sybistroma cannot be neuter, as Meigen (1824) originally included Sybistroma nodicornis in the genus (neuter gender should be nodicorne). Therefore, all -us and -um names must be changed into -a in this ginus.
Igor Grichanov |
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| Stefan Naglis |
Posted on 14-05-2010 12:45
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Member Location: Switzerland Posts: 738 Joined: 27.12.08 |
Igor, in his revision of the world genera of Dolichopodinae, Brooks (2005, p. 113) transferred the species to Sybistroma and used Sybistroma inornatus. Stefan |
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| Stephen R |
Posted on 14-05-2010 19:51
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Member Location: Clitheroe Lancashire UK Posts: 2396 Joined: 12.06.09 |
Thanks Igor and Sefan. There seems to be plenty of confusion about this! All three genders seem to be in use for different species in the genus; authors who used the neuter probably made the same mistake I did in assuming the etymology had something to do with the Greek stroma (=bed, substrate), but that can't be right, both for the reason Igor gives and because there is no Greek root to account for the 'sybi' bit. Probably Meigen named the genus after a person (or a place) called Sybistrom or something similar, in which case the feminine gender would have been quite natural. I can't see why some authors have chosen a masculine form. Does Meigen give an etymology? Stephen. |
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| Igor Grichanov |
Posted on 15-05-2010 09:16
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Member Location: St.Petersburg, Russia Posts: 1798 Joined: 17.08.06 |
Stephen, unfortunately Meigen did not give etymology. And a few species were described originally in this genus with feminine ending (none with masculine one): Sybistroma americana Schiner, 1868, Sybistroma setosa Schiner, 1862, Sybistroma lenkoranica Negrobov, 1979 (http://members.fortunecity.com/grichanov/wScorpiurus.html#Sybistroma) Henk Meuffels (teacher of Latin) has not found Greek/Latin meenings for this word (http://members.fortunecity.com/grichanov/aas.htm) Igor Grichanov |
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