Gallery Links
Users Online
· Guests Online: 10

· Members Online: 0

· Total Members: 4,468
· Newest Member: sawge
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· RamiP00:08:11
· Zeegers00:09:30
· Jan Maca00:12:54
· evdb00:14:36
· Juergen Peters01:52:22
· Kaprikorn02:28:05
· Nosferatumyia03:10:38
· John Carr07:47:59
· ole08:38:54
· binturong09:01:24
Latest Photo Additions
View Thread
Diptera.info :: Miscellaneous :: General queries
Who is here? 1 guest(s)
 Print Thread
angled M-vein in Calyptratae
Carnifex
#1 Print Post
Posted on 23-08-2019 20:46
Member

Location: Vienna, Austria
Posts: 1064
Joined: 23.06.15

Don't know whether this has been investigated: What is the reason behind the conspicuous angle of the M vein that many Calyptrate species exhibit? Can this be associated with wing stability? Or certain flight abilities?
Just curious if anybody here heard of studies dealing with this question (or can come up with a suggestion)
Edited by Carnifex on 23-08-2019 20:47
Cheers, Lorin

Font Color
All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
John Carr
#2 Print Post
Posted on 27-08-2019 13:59
User Avatar

Member

Location: Massachusetts, USA
Posts: 7839
Joined: 22.10.10

I read somewhere that curved veins near wingtip can help maneuvering or hovering flight. I assume they make the wingtip stiffer. The course of wing veins evolves slowly. If an ancestor of Oestroidea saw a strong benefit from curved vein M and its descendents didn't care, the bend could be present for no obvious reason.
 
http://www.flickr.com/photos/31715949@N00
Carnifex
#3 Print Post
Posted on 27-08-2019 21:01
Member

Location: Vienna, Austria
Posts: 1064
Joined: 23.06.15

Thanks John, I am sensing an increasing interest for myself in the evolution of wing venation. So in some Tachinids, it was apparently beneficial to return to a more or less straight vein.
Cheers, Lorin

Font Color
All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
Jan Maca
#4 Print Post
Posted on 14-09-2019 10:09
Member

Location:
Posts: 383
Joined: 25.03.10

A study of the mechanicsm of flight in Diptera: Ishihara, D. 2018. Role of fluid-structure interaction in generating the characteristic tip path of a
flapping flexible wing. Physical Review E 98(3): 19. doi:10.1103/PhysRevE.98.032411.
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Green Calyptratae: Lucilia? Neomyia? Diptera (adults) 2 09-05-2020 00:20
Lauxaniidae from Madrid mountains -> Calyptratae, not Lauxaniidae Diptera (adults) 4 21-01-2020 16:03
Calyptratae Pollenia sp . Diptera (adults) 3 20-10-2018 12:51
Black Calyptratae - id help Diptera (adults) 3 06-09-2018 08:21
vein r1 with bristles->Achanthiptera rohrelliformis Diptera (adults) 5 22-08-2018 13:34
Date and time
14 July 2020 08:43
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
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.

11.07.20 17:55
Hi I seem to have problem posting photos in the forum. Any idea what I'm doing wrong. File size around 200 kB. File extension lower case (.jpg).?

13.06.20 04:50
I am about to become unemployed again, so if anybody knows of a college or university needing an excellent ESL teacher, that would not be put off by the 63 years please let me know. Have net will trav

09.06.20 19:57
128 in the New World as of 2009. Should be around 140 worldwide depending on how you split.

09.06.20 07:19
How many families of flies are currently recognised?

28.04.20 12:00
@Sundew: You may inadvertedly have been caught in the void of the server switch. I hope all is okay now. I am still ironing out any glitches that appear and/or are reported.

28.04.20 11:58
@bioimages: May have been a temporary glitch. I see the new threads with now replies correctly Replies 0.

28.04.20 11:56
@ Volker: There was an error after the server upgrade. Please, try again.

27.04.20 14:43
Where can I change the website in my profile? I don't find anything. thx Volker

27.04.20 12:07
Seems to be a bug: new posts show with 1 reply which makes it look as though it's already been answered.

24.04.20 23:53
All my posts from yesterday evening (that looked good) have disappeared... I'll send them again.

Render time: 1.84 seconds | 145,979,634 unique visits