Thread subject: Diptera.info :: Lonchaea spec.--> Lonchaea patens

Posted by Lavendel on 24-12-2025 16:48
#1

Is it possible to ID this one a bit further?
Found in the Netherlands, forest near dunes, april 2025
Specimen is collected

Edited by Lavendel on 08-01-2026 07:31

Posted by Lavendel on 24-12-2025 16:49
#2

an other view

Posted by Lavendel on 24-12-2025 16:49
#3

last one

Posted by Lavendel on 04-01-2026 09:40
#4

Could Lonchaea sylvatica be an option?

Edited by Lavendel on 04-01-2026 09:41

Posted by Iain MacGowan on 04-01-2026 11:06
#5

The specimen has yellow tarsomeres - so it is not L. sylvatica Fortunately it is a male so so you should be able to identify by examination of the genitalia.
I have keys if you require them

Posted by Lavendel on 04-01-2026 13:46
#6

Hi Iain, Many thanks for the reference to the key.
It's my first:
Eyes; bare or practically bare
Anterior genal setae: multiserial

Edited by Lavendel on 04-01-2026 13:53

Posted by Lavendel on 04-01-2026 13:47
#7

Proepimeron: with a few well developed setae / setulae
Legs; Tarsomeres obviously yellow/ orange

Posted by Lavendel on 04-01-2026 13:48
#8

an

Posted by Lavendel on 04-01-2026 13:49
#9

Eyes; bare or practically bare
Anterior genal setae: multiserial
Proepimeron: with a few well developed setae / setulae
Legs; Tarsomeres obviously yellow/ orange
...And then I can't go on
Scutellum; without setulae on margin anterior to lateral setae (Fig F). But my specimen is like Fig E, I cant't find a reference in the key.
Bigger pictures you can find here: https://waarneming.nl/observation/345480910/

Posted by Iain MacGowan on 04-01-2026 18:14
#10

Hi Sandra
Well done for getting so far. Based on your description I would be reasonably confident that this is a male of Lonchaea patens. The large cercus is visible in your photo at the tip of the abdomen. The other two species in this part of the key - L. vagans and L. germanica are little known
Best wishes ........ Iain

Posted by Lavendel on 05-01-2026 05:57
#11

Hi Iain,
Many thanks,
I can see the Proepimeron; with up to 7 setulae. Legs; t1 and t2 yellow. t1 of fore tarsi with ventral fringe of setulae golden
Best wishes,
Sandra