Thread subject: Diptera.info :: Female Parhelophilus ?

Posted by Axel D on 13-06-2022 14:13
#1

Hello

I found yesterday this hoverfly around a pond in a deciduous forest. I think it is a Parhelophilus, but I'm not sure for the species. It is a female, and with the ID keys I use, I hesitate between two species P. versicolor and P. frutetorum.

According to Speight & Sarthou, 2015 :
7 Occiput, behind eyes, entirely yellow-haired (a few short, black spinules may be visible dorso-laterally)
.............................................................................................................................. versicolor
--- occiput, behind eyes, with an anterior row of strong black hairs, as well as the more abundant yellow hairs
............................................................................................................. 8 [incluing frutetorum]


In fact, I can see some black spinules behind eyes (at least 3 spinules on each side I'd say) but I'm not sure that there are enough spinules to make it a female P. frutetorum. I think there may be some broken spinules. What is your opinion about it ?

Found in Forêt de Bondy, Clichy-sous-Bois, Seine-Saint-Denis, Île-de-France, France
On the 12th of June 2022
Body length : 11 mm

Posted by Axel D on 13-06-2022 14:13
#2

Side view :

Posted by Axel D on 13-06-2022 14:14
#3

Head detail :