www.photomacrography.net :: View topic - Flag Footed Fly
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Flag Footed Fly

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Technical and Studio Photography -- Macro and Close-up
View previous topic :: View next topic  
Author Message
BugEZ



Joined: 26 Mar 2011
Posts: 710
Location: Loves Park Illinois

PostPosted: Sat Jan 06, 2018 5:37 pm    Post subject: Flag Footed Fly Reply with quote

Some long legged fly species (dolichopodidae) have ornamentation on their feet. The males use these markers somehow in courtship to display to the females that they have the right stuff. A typical male may look like this (image from BugGuide)

https://bugguide.net/node/view/659439

I found this specimen in my "winter reserve" in the freezer. I had to give it a bath to rehydrate the eyes, but but eye rehydration was only partially successful.
The feet proved to be more interesting. What high contrast between white and black patches!

The whole body shot using my rig with LED bucket light, 29mm UKA lens on extension, ~ 200 images, Pentax K-01 mirrorless camera.

The foot shots with my 10X OLY, 300mm Pentax 55-300mm zoom as tube lens, Pentax K-01 mirrorless camera, bucket LED lighting. about 30 images each for the two foot poses.

Processed with Zerene Pmax. Zerene generated the stereos, but I passed them through Stereo Photo Maker then down sized with Photoshop to lower file size.

All images




Keith
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 19183
Location: Richland, Washington State, USA

PostPosted: Sat Jan 06, 2018 8:20 pm    Post subject: Reply with quote

Lovely!

You know I'm a sucker for stereo in general, but this one of those cases where it helps a lot for understanding.

Without stereo, I have a lot of trouble deciphering the structure in the first image, because of the way the critter's left foot lines up with the middle of his right leg. But with stereo, it's pretty simple.

Then in the other two, the stereo makes clear how the spines and bristles relate to the rest of the foot.

I don't think that I've ever seen one of these flies in person, so I also appreciate the up-close introduction.

--Rik
Back to top
View user's profile Send private message Visit poster's website
BugEZ



Joined: 26 Mar 2011
Posts: 710
Location: Loves Park Illinois

PostPosted: Sat Jan 06, 2018 9:27 pm    Post subject: Reply with quote

Thanks Rik!

Yes the stereo helps solve the tangled leg mystery of what is where.

These Dolichopus genus flies I find beside a stream near my home in July. I think they only do one generation per year as I don’t see them in other summer months. On similar long legged Tachytrechus flies that I find beside a lake 1/4 mile away, the males have black spots on the tips of the wings. The Condylostylus doli that I find in my yard all summer long don’t have such obvious flags (to us). As several different related Condylostylus species co exist on my hosta leaves at the same time, they must have a different mating authentication scheme. Doli flies have solved the species verification check many ways.

Keith.
_________________
Aloha
Back to top
View user's profile Send private message
BugEZ



Joined: 26 Mar 2011
Posts: 710
Location: Loves Park Illinois

PostPosted: Thu Jan 11, 2018 8:04 am    Post subject: Reply with quote

some photos of the foot with green background .






Keith
Back to top
View user's profile Send private message
RobertOToole



Joined: 17 Jan 2013
Posts: 826
Location: United States

PostPosted: Fri Jan 19, 2018 9:51 am    Post subject: Reply with quote

Thanks for the details of the feet Keith, that is interesting!

Robert
Back to top
View user's profile Send private message Visit poster's website
BugEZ



Joined: 26 Mar 2011
Posts: 710
Location: Loves Park Illinois

PostPosted: Fri Jan 19, 2018 12:41 pm    Post subject: Reply with quote

Robert,

You are welcome!

Dolichopodidae are a passion of mine. Today I am headed out to gather some grass stems and look for one of the genus that spends their larval state mining grass stems. They overwinter inside the stem at ground level. Most doli are carnivores, but a few are not. These herbavoirs are very spicific about the right sort of plant (in this region normally tall native grass), but are little known, so it is a like gold panning hunting for them. You never know what you will find. So far all I have found is cold fingers and toes!

K
_________________
Aloha
Back to top
View user's profile Send private message
razashaikh



Joined: 14 Nov 2017
Posts: 124
Location: India

PostPosted: Sat Jan 20, 2018 1:44 am    Post subject: Reply with quote

Photos came out very nice. Thanks for the information
Back to top
View user's profile Send private message
RobertOToole



Joined: 17 Jan 2013
Posts: 826
Location: United States

PostPosted: Wed Jan 24, 2018 2:57 pm    Post subject: Reply with quote

BugEZ wrote:
Robert,

You are welcome!

Dolichopodidae are a passion of mine.

K


Always enjoy chasing the blue metallic Doli-flies in when I am in Florida. They are always fun to photography handheld.

I find fly biology interesting. During a case of insomnia I decided to read up on Tabanus for an upcoming photo tour I lead each year in South Africa and I was amazed! Some Sp. enter through the mouth of elephants and exit the base of the tusk when they mature!

What are the bee parasites? Wow. What an interesting and bizarre group that is!

Robert
Back to top
View user's profile Send private message Visit poster's website
BugEZ



Joined: 26 Mar 2011
Posts: 710
Location: Loves Park Illinois

PostPosted: Wed Jan 24, 2018 6:46 pm    Post subject: Reply with quote

RobertOToole wrote:
Quote:
Always enjoy chasing the blue metallic Doli-flies in when I am in Florida.


A friend sent me some Condylostylus mundus from Orlando Florida in a vial of alcohol so I could photograph the eyes. They are the bluest doli that I have photographed. They are a spectacular fly. I hope to visit Florida soon and see some.

Male
C. mundus by Keith Short, on Flickr
C. mundus showing spectacles by Keith Short, on Flickr

Female
Female Condylostylus species by Keith Short, on Flickr
Male C ? by Keith Short, on Flickr
Back to top
View user's profile Send private message
RobertOToole



Joined: 17 Jan 2013
Posts: 826
Location: United States

PostPosted: Wed Jan 24, 2018 8:10 pm    Post subject: Reply with quote

That looks like the one I photographed.

They seem to pretty easy to find sunny on sunny perch.

Robert
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Technical and Studio Photography -- Macro and Close-up All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group