Gallery Links
Users Online
· Guests Online: 33

· Members Online: 0

· Total Members: 5,028
· Newest Member: mangeley
Forum Threads
Newest Threads
· Slender diptera
· Tabanidae, help id, ...
· Asilidae --> Dioctri...
· Asilidae --> Dioctri...
· Asilidae --> Dioctri...
Hottest Threads
· Portraits of amat... [338]
· Fly bubble blowing [172]
· Ariasella lusitan... [105]
· Pinning flies and... [94]
Theme Switcher
Switch to:
Last Seen Users
· Volker< 5 mins
· cebe00:06:29
· Joerg Schneider00:55:33
· Juergen Peters01:02:43
· weia06:35:56
· Eugene K07:38:06
· Bernard Pert...07:40:32
· smol07:42:55
· Auratus08:12:11
· Mizar08:14:47
Latest Photo Additions

Hermetia sexmaculata...

Ommatius floridensis...

Pelecorhynchus disti...

Pelecorhynchus disti...

Hoplocheiloma totlia...

Allograpta radiata (1)

Chrysanthrax cypris (1)

Toxomerus corbis (1)

Toxomerus arcifer (1)

Toxomerus floralis (1)
View Thread
Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Pachystylum? (Exoristinae, Tachinidae) from Greece - id help
Xeroporcellio
#1 Print Post
Posted on 30-11-2023 20:38
Member

Location:
Posts: 181
Joined: 27.05.21

 Hello,

I have this small Exoristinae from the Greek island of Lesvos which I am trying to identify. Using the following characters in Moschweb, it gave me only Pachystylum as an option. However, the only known member of the genus (P. bremii) has spiny setae on R4+5 up to almost the crossvein R-M, while my specimen has this vein bare in both wings (except for one basal bristle). What do you believe? Is it a yet undescribed species of Pachystylum, a variety of P. bremii or I noted a character falsely and turned out in the wrong genus?

The input in Moschweb:

(1) EYE
-Eye bare or nearly bare: hairs, if present, not longer than diameter of 2 eye facets
(14) PARAFACIAL SETAE
-parafacial entirely bare below lowest frontal seta
(18) SETAE OF FACIAL RIDGE
-... with setae on approx. 1/4 of its length
(24) VENTRAL PART OF OCCIPUT
-... with a majority of black hairs but with at least a few light-coloured hairs along the postero ventral margin of head
(27) COLOUR OF ANTENNAL PEDICEL
-pedicel black or uniformly dark brown
(31) PUBESCENCE OF ARISTA
-arista apparently bare; if pubescent, then hairs at most reaching length of basal diameter of arista
(37) COLOUR OF PALPUS
-black or dark brown
(40) PROSTERNAL SETULAE
-prosternum with at least one pair of setulae on lateral margin
(49) KATEPISTERNAL SETAE
-four ...
(52) SCUTELLUM COLOUR
-scutellum entirely black
(64) WING COLOUR
-wing membrane unpatterned: hyaline, whitish or slightly darkened
(65) TEGULA COLOUR
-black or dark brown
(66) BASICOSTA COLOUR
-red to yellow
(69) VEIN R1
-R1 bare
(79) COLOUR OF LEGS
-femora and tibiae black or dark brown
 
Xeroporcellio
#2 Print Post
Posted on 30-11-2023 20:39
Member

Location:
Posts: 181
Joined: 27.05.21

 Habitus.
Xeroporcellio attached the following image:


[42.96Kb]
 
Xeroporcellio
#3 Print Post
Posted on 30-11-2023 20:39
Member

Location:
Posts: 181
Joined: 27.05.21

 Abdomen (no discal setae on T3+4).
Xeroporcellio attached the following image:


[204.95Kb]
 
Xeroporcellio
#4 Print Post
Posted on 30-11-2023 20:40
Member

Location:
Posts: 181
Joined: 27.05.21

 Head (lateral view).
Xeroporcellio attached the following image:


[220.37Kb]
 
Xeroporcellio
#5 Print Post
Posted on 30-11-2023 20:40
Member

Location:
Posts: 181
Joined: 27.05.21

 Head (frontolateral view).
Xeroporcellio attached the following image:


[296.24Kb]
 
Xeroporcellio
#6 Print Post
Posted on 30-11-2023 20:40
Member

Location:
Posts: 181
Joined: 27.05.21

 Posteroventral setae.
Xeroporcellio attached the following image:


[281.83Kb]
 
Xeroporcellio
#7 Print Post
Posted on 30-11-2023 20:41
Member

Location:
Posts: 181
Joined: 27.05.21

 Katepisternum.
Xeroporcellio attached the following image:


[243.01Kb]
 
Xeroporcellio
#8 Print Post
Posted on 30-11-2023 20:41
Member

Location:
Posts: 181
Joined: 27.05.21

 Palpi.
Xeroporcellio attached the following image:


[214.85Kb]
 
Xeroporcellio
#9 Print Post
Posted on 30-11-2023 20:41
Member

Location:
Posts: 181
Joined: 27.05.21

 Prosternum.
Xeroporcellio attached the following image:


[247.06Kb]
 
Xeroporcellio
#10 Print Post
Posted on 30-11-2023 20:42
Member

Location:
Posts: 181
Joined: 27.05.21

 Tip of cell R4+5.
Xeroporcellio attached the following image:


[191.81Kb]
 
Xeroporcellio
#11 Print Post
Posted on 30-11-2023 20:42
Member

Location:
Posts: 181
Joined: 27.05.21

 Portion of R4+5 before crossvein.
Xeroporcellio attached the following image:


[279.52Kb]
Edited by Xeroporcellio on 30-11-2023 20:44
 
John Carr
#12 Print Post
Posted on 30-11-2023 21:52
User Avatar

Super Administrator

Location: Massachusetts, USA
Posts: 10385
Joined: 22.10.10

 The single strong bristle at the base of R4+5 is normally of generic significance. Most genera have at least a few weak bristles. The exceptions with one strong bristle are not closely related to each other.

Is the first post-sutural supra-alar weak or strong?
 
http://www.flickr.com/photos/31715949@N00
Xeroporcellio
#13 Print Post
Posted on 01-12-2023 13:01
Member

Location:
Posts: 181
Joined: 27.05.21
John Carr wrote:
The single strong bristle at the base of R4+5 is normally of generic significance. Most genera have at least a few weak bristles. The exceptions with one strong bristle are not closely related to each other.

Is the first post-sutural supra-alar weak or strong?


The first post-sutural supra-alar (red arrow) seems to be very strong, at least as strong as the notopleural bristles (yellow arrow). NOTE: the left supra-alar has been broken off the specimen and the right one (the one used in the photo) has a broken apical portion.
Xeroporcellio attached the following image:


[286.33Kb]
 
neprisikiski
#14 Print Post
Posted on 02-12-2023 23:33
Member

Location: Lithuania
Posts: 876
Joined: 23.02.09
Thelyconychia solivaga.
Erikas
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Exoristinae? Diptera (adults) 4 13-06-2025 12:55
Tachinidae: cf. Bothria subalpina ♀ Diptera (adults) 5 12-06-2025 22:32
Tachinidae, Clytiomya ? Diptera (adults) 4 12-06-2025 11:33
Vibrissina turrita (m) <-- Which Tachinidae? Diptera (adults) 3 11-06-2025 21:05
Atherix ibis? (Greece) Diptera (adults) 1 11-06-2025 19:36
Date and time
15 June 2025 06:26
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
· Voltinism in Chaoborus
· Vitaliy Nikolaevich ...
· Mating behaviour and...
· Oviposition into the...
· African Invertebrates
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download

Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

smol
02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

Nikita Vikhrev
28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

smol
28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

Nikita Vikhrev
08.05.25 18:22
I have

rvanderweele
03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

Zeegers
10.03.25 18:02
We are looking for a new webmaster https://diptera.in
fo/forum/viewthrea
d.php?thread_id=11
5023&rowstart=20

Zeegers
04.03.25 17:10
Please use the link posted below to remember and honour Paul, if you wish

Zeegers
04.03.25 17:09
I propose in respect to him not to post on trivial matters until his cremation, March 8th

Zeegers
04.03.25 17:08
For those unaware: Paul, the owner, past away two days ago. https://diptera.in
fo/forum/viewthrea
d.php?thread_id=11
5023

rafael_carbonell
19.12.24 12:33
Received missing pages from @royensoc.co.uk, free download available for a few days: https://we.tl/t-vk
a2lFLsYU

Render time: 1.69 seconds | 226,601,013 unique visits