Thread subject: Diptera.info :: Lauxaniidae?
Posted by blowave on 02-12-2009 23:43
#1
Hi again ;)
I can't find this one.
3 pics from 2nd November on Ivy. Also one pic from 9th November which looks related, approx. 5mm long.
Near Lincoln UK.
Janet:)
Posted by blowave on 02-12-2009 23:44
#2
pic 2
Posted by blowave on 02-12-2009 23:44
#3
pic 3
Posted by blowave on 02-12-2009 23:45
#4
Second fly on 9th November, one pic only.
Posted by shililauxaniid on 09-01-2010 13:54
#5
Maybe Sapromyza sp.
Li Shi
Posted by blowave on 09-01-2010 16:09
#6
Thank you for the suggestion Li Shi.:)
These I suspect are difficult to identify, I recently came across
Minettia plumicornis in the gallery and thought it could be that?
Posted by shililauxaniid on 13-01-2010 14:25
#7
I can not decide it because I identify some species from the Oriental Region. So I can not give you a correct answer.:)
Posted by Paul Beuk on 13-01-2010 14:37
#8
No interalar setae ->
Sapromyza.
Posted by blowave on 13-01-2010 20:15
#9
Thanks Paul!
You were correct with Sapromyza sp. Li Shi.;)
I guess it's not possilbe to get it to species level? We have 7 Sapromyza sp. here, S. albiceps, apicalis, halidayi, obsoleta, opaca, sexpunctata, zetterstedti.
I think S. sexpuncatata can be ruled out, I think I have that one too. I found a pic of
Sapromyza apicalis on this site which has dark antennae tips, not sure about the rest though.:) I have pics from June of a paler one which looks similar.
http://www.dipter...d_id=20611
Posted by viktor j nilsson on 13-01-2010 20:44
#10
Letīs use elimination and see where it gets us...
albiceps (male) should have frons and face white and a single pair of orbital bristles
apicalis should have darkened third antennal segment
obsoleta should also have darkened third antennal segment
opaca should have three tergites with black spots
sexpunctata should also have three tergites with black spots
zetterstedti should have one pair of black spots on the abdomen
halidayi
could be an alternative, but should have yellow palpi, this flyīs palpi are obviously dark...
This leaves us with... nothing. It might be something not on your list - but I am not an expert!
In summary: always collect, and donīt trust checklists!
Posted by shililauxaniid on 14-01-2010 13:18
#11
viktor, You are a great man with rich experience on Sapromyza spp. . These identifying characters are helpful to me and other people.
I believe your summary: always collect, and don't trust checklists! Support it!:)
Posted by Paul Beuk on 14-01-2010 14:10
#12
It could be
intonsa but Katka might be able to tell more.
Posted by viktor j nilsson on 14-01-2010 14:24
#13
shililauxaniid: Thanks, but I am really just a beginner! Just started looking at these Lauxanids last year. I havenīt seen all these Sapromyza species (but I hope I will someday!), but simply used the keys in Shatalkin (2000) to see if there where any particular couplet that strongly eliminated each species. I learned a lot from it and Iīm happy if you learned something too!
Posted by katerina dvorakova on 14-01-2010 14:46
#14
Hi,
I think fly in picture 1-3 have dark end of antenae, but fly at fourth picture not. So that 1-3 Sapromyza obsoleta group, 4 may be Sapromyza intonsa group or somethink else, it is very bad visible.
Katka
Posted by blowave on 14-01-2010 15:36
#15
Thank you all for the input, Victor that list of characters to look for might prove useful!
Thanks Katka, I was hoping you would appear.;) It looked to be one of the two as listed by Victor with dark antennae tips.
Is it safe to put the first fly in the Gallery as
Sapromyza obsoleta group? There are none at the present so would make a useful addition.:)
Posted by katerina dvorakova on 14-01-2010 16:18
#16
Hi,
i thing it is not for the gallery, the darkness of antenae is very light, so that it is not a typical specimen.
Katka