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 Parydra coarctata (cf), Ephydridae, May 28, 2021, near Budapest, Hungary?
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| Xespok |
Posted on 31-05-2021 21:02
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 Member Location: Posts: 5550 Joined: 02.03.05 |
Is this Pardyra sp? If so, possibly not identifiable to species.
Edited by Xespok on 01-06-2021 07:10 Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Xespok |
Posted on 31-05-2021 21:07
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Member Location: Posts: 5550 Joined: 02.03.05 |
Another image.
Edited by Xespok on 31-05-2021 21:32 Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Tony Irwin |
Posted on 31-05-2021 23:30
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 Member Location: Posts: 7168 Joined: 19.11.04 |
It is Parydra, possibly coarctata, but difficult to be sure.
Tony ---------- Tony Irwin |
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| Xespok |
Posted on 01-06-2021 07:09
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Member Location: Posts: 5550 Joined: 02.03.05 |
I tried to run this through the key written by Papp L. P. coarctata should typically have a small side branch to r2 and r3 which should be visible in the second picture (see also later). However, I do not see it. P. quadripunctata can also be ruled out for the same reason. P. nubecula should have a more dusted frons, and it is rare in Hungary, so this can be ruled out. P. aquila does not have a patterned wing, which this fly clearly has. The wing veins are not wavy, which rules out undulata, which is yet to be recorder in Hungary. Then, if I see correctly this fly has 3 dc, which rules out cognata. So we are left with coarctata (it seems after all that the side branch to r2 and 3 is not always there, especially in females). The fly was largish (for an Ephydrid), and the r2and3 is quite lomng in relation to r4and5. So coarctata is likels.
Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Tony Irwin |
Posted on 01-06-2021 09:26
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Member Location: Posts: 7168 Joined: 19.11.04 |
The presence or absence of the appendix (side branch) of r2+3 is very variable among most species of Parydra - I regularly see specimens with the appendix on one wing, but not the other!
Tony ---------- Tony Irwin |
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but don't see the image in the post.
