Thread subject: Diptera.info :: Calliphoridae - Eurychaeta muscaria

Posted by Liliane D on 14-10-2017 18:35
#1

Hi
Yesterday, in October 13th, 2017, always on the ivy in the South of France, I saw a dipteran which looks like Eurychaeta muscaria but it seems to me that the wing nervation presents some differences.

Edited by Liliane D on 15-10-2017 11:31

Posted by Liliane D on 14-10-2017 18:36
#2

Others pictures

Posted by Liliane D on 14-10-2017 18:37
#3

The face

Posted by Liliane D on 14-10-2017 18:38
#4

wing nervation

Posted by Stephane Lebrun on 14-10-2017 19:20
#5

No problem, again a female of Eurychaeta muscaria, and again very nice pictures.

Posted by Liliane D on 15-10-2017 11:47
#6

Double merci Stephane
For the confirmation and for the compliment

Posted by Liliane D on 15-10-2017 11:49
#7

For the photo gallery, I let you register the pictures which seem to you the most interesting

Posted by lweit on 17-10-2017 16:54
#8

Hello
Why not Eurychaeta palpalis ?

In this work ; British blowflies (Calliphoridae) and woodlouse flies (Rhinophoridae) (Steven Falk draft key March 2016).pdf pages 18 et 38.
- p. 18 : lower part of parafacialia with some very long and strong bristles => Eurychaeta palpalis
p. 38 : E. muscaria is a central and southern European species with much broader parafacialia that only bear a single strong bristle (3-4 present in E. palpalis).

therefore parafacialia with several strong bristles this should be Eurychaeta palpalis.

Louis

Posted by Stephane Lebrun on 17-10-2017 19:49
#9

I followed the key given by Knut Rognes :

-Parafacialia at narrowest point about as wide as palp at broadest point and half as wide as first flagellomere ; gena in profile, about as wide as first flagellomere. [...]Female : first flagellomer rather broad, 1.8-2 as long as broad ; frons about as wide as an eye when seen from above ................................palpalis.

-Parafacialia at narrowest point about 2-3 wider than palp at broadest point and as wide as first flagellomere ; gena in profile 1.5-2 times higher than width of first flagellomere. [...] Female : first flagellomere narrower than in palpalis, about 2.5 times as long as broad ; frons wider than an eye when seen from above.........muscaria.

Edited by Stephane Lebrun on 17-10-2017 19:53

Posted by johnes81 on 17-10-2017 20:44
#10

I agree with Eurychaeta muscaria based upon the height of the gena alone. The keys of Dr. Rognes are 100% accurate. Nice work, Stephane :)

Posted by Liliane D on 23-10-2017 16:12
#11

Thank you Stephane, John and Mini, for all this precision.