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View Thread :: Identification queries :: Diptera (adults)
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Tachinid question again
#1 Print Post
Posted on 10-05-2021 16:06

Location: North France, lille
Posts: 910
Joined: 08.06.10

Hi everyone,

Here comes my usual question on Tachinidae.

I caught this specimen two weeks ago (no pictures in vivo unfortunatly, it appear my only pictures of specimens in vivo are always Voria ruralis or Phorocera sp. Frown )

I am not convinced by my identification on this specimen (using Tschornig&Herting's):
- not hairs on cheeks
-few hairs on R4+5
-apical hairs on scutellum crossed, not uprised
-3 st
-majors hairs on humerus in line
-pre alar longer than notopreral
-propleuron bare
-hairs above vibrissa reach more than 2/3
-no Ad preapical bristlet on T1

I end on Pales genus, and with thoses black legs, it should be P perigrina.
Does it appear possible? (it is quite dusted for a species "hardly dusted"Wink
clovis : France : Daon : 53200 : 27/04/2021
Altitude : 35 m - Taille : 10 mm
Réf. : 281427
clovis : France : Daon : 53200 : 27/04/2021
Altitude : 35 m - Taille : 10 mm
Réf. : 281434
clovis : France : Daon : 53200 : 27/04/2021
Altitude : 35 m - Taille : 10 mm
Réf. : 281435
Edited by clovis on 16-05-2021 11:33
#2 Print Post
Posted on 12-05-2021 07:18

Location: Soest, NL
Posts: 18528
Joined: 21.07.04

Hi Clovis,

It is not Pales, you guessed that already. What is the colour of the palpus ?
Please note the very strong reclinate orbital birstle. So Nilea comes to mind. Nilea has smaller birstles up to halfway or more on facial ridge. So try that.
The alternative is Clemelis, which is essentially a small Nilea, but with 2 reclinate orbitals.

If possible, provide a close-up of the genitalia, these are distinctive.

And when struggling with a key, do use the interactive key on !!

#3 Print Post
Posted on 16-05-2021 11:30

Location: North France, lille
Posts: 910
Joined: 08.06.10

Nice, I didn't know this website! This is of great help,
maybe I won't have to ask on my 3 others specimens waiting for your opinion TumbsUp

I can only see one reclinate orbital.

So using I have only Pales and Nilea that stays. Smile

I ruled out Nilea and Clemelis by the colour (black) of palpus (not that I did think specifically of these genus) using Tschornig&Herting, but this might be a southern species with black palpus (color black does not exclude Nilea on

=> I tried to use Cerretti’s key to go to Nilea species:
But again I am stuck: 2 species has black palpi: Tlephusa cincinna (but 2 reclinate orbital in and N rufiscutellaris, wich has 4 katerpistal bristle (3 on my specimen).
Scutellum is mostly red on hind margin (and only on margin)
clovis : France : Daon : 53200 : 27/04/2021
Altitude : 40 m - Taille : 8 mm
Réf. : 281756
Edited by clovis on 16-05-2021 11:35
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