Thread subject: Diptera.info :: Pollenia labialis or P. amentaria ?

Posted by Duncan Cooke on 23-10-2022 03:11
#1

I think this is either Pollenia labialis or Pollenia amentaria. Can anyone tell me if it is one or the other ? I will iRecord if I can get a positive ID. Found in South Cumbria, 18/10/2022.

Update; 24/10/2022. Thanks to Eric I am now satisfied this is neither of the above, but in fact a (female) Pollenia rudis. ( Unless anyone can convince me otherwise ? ).

Edited by Duncan Cooke on 24-10-2022 01:28

Posted by eklans on 23-10-2022 08:17
#2

Hi Duncan, these two can be excluded:
P. labialis has a black basicosta
P. amentaria has a shiny black abdomen

P. rudis is a good candidate with pale basicosta, 2+ ad bristles on mid tibia, and only black hairs posteroventral on hind and mid femur. To be more sure we need a dorsal view.
(Olga Sivell: Blow flies, 2021)

Posted by Duncan Cooke on 23-10-2022 16:12
#3

Thanks Eric, that's very helpful. Here is a dorsal view.

Edited by Duncan Cooke on 23-10-2022 16:18

Posted by eklans on 23-10-2022 18:36
#4

Hi Duncan, yes - very likely it's a female Pollenia rudis.

Posted by Duncan Cooke on 23-10-2022 20:20
#5

Thanks Eric.

Posted by Duncan Cooke on 24-10-2022 20:02
#6

I've added this face view if it helps confirm Pollenia rudis.

Edited by Duncan Cooke on 24-10-2022 20:09