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It came from the mist!
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Pizzazz



Joined: 28 Nov 2013
Posts: 458

PostPosted: Mon May 20, 2019 4:37 pm    Post subject: It came from the mist! Reply with quote

Hi Gang

A small green iridescent fly that is entering our reality!


Mike



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Lou Jost



Joined: 04 Sep 2015
Posts: 3847
Location: Ecuador

PostPosted: Tue May 21, 2019 5:01 am    Post subject: Reply with quote

Scary!
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Pizzazz



Joined: 28 Nov 2013
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PostPosted: Tue May 21, 2019 6:13 am    Post subject: Reply with quote

Lou

Imagine if they were larger enough that you had to "avoid" them!

Mike
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iconoclastica



Joined: 25 Jun 2016
Posts: 228
Location: Wageningen, Gelderland

PostPosted: Tue May 21, 2019 8:44 am    Post subject: Reply with quote

Even though blue is absent, there's a striking similarity of the eyes wit a bayer-grid. Does this have anything to do with colour vision?
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Yawns



Joined: 20 Dec 2015
Posts: 384
Location: Benavente, Portugal

PostPosted: Tue May 21, 2019 10:47 am    Post subject: Reply with quote

Pizzazz wrote:
Lou

Imagine if they were larger enough that you had to "avoid" them!

Mike


I'm sure if some insects were bigger and more "visible" we would have some as pets, ... like we have parrots, and canaries and other animals...
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cube-tube



Joined: 10 Oct 2017
Posts: 107
Location: Durham, NC

PostPosted: Wed May 22, 2019 11:49 am    Post subject: Reply with quote

Beautiful image... very tasteful colors and composition
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Pizzazz



Joined: 28 Nov 2013
Posts: 458

PostPosted: Wed May 22, 2019 12:37 pm    Post subject: Reply with quote

Cube Tube

Well thank you. I just wanted to do something a little different.

The forum really pushes us to try to do the best and think outside the box.

Mike
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MarkSturtevant



Joined: 21 Nov 2015
Posts: 602
Location: Michigan, U.S.A.

PostPosted: Thu May 23, 2019 9:27 pm    Post subject: Reply with quote

Nice! I think this is a long-legged fly (Dolichopodidae).
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CJFearn



Joined: 04 Jun 2014
Posts: 0
Location: Germany

PostPosted: Sat Jun 15, 2019 1:20 am    Post subject: Reply with quote

Yawns wrote:
Pizzazz wrote:
Lou

Imagine if they were larger enough that you had to "avoid" them!

Mike


I'm sure if some insects were bigger and more "visible" we would have some as pets, ... like we have parrots, and canaries and other animals...


We were at the pet show recently and people are doing just that with the large "stick bugs". Very Happy
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BugEZ



Joined: 26 Mar 2011
Posts: 793
Location: Loves Park Illinois

PostPosted: Wed Jun 19, 2019 6:38 am    Post subject: Reply with quote

Pizzazz,

Lovely image. Were this found in Rockford Illinois where I live I would say id is a Condylostylus patibulatus . If it were found in Florida, Hawaii or California probably Condylostylus longicornus . Without location or a wing/leg shot hard to say exact species. Definitely a Longlegged fly

I have photographed long legged fly eyes for nearly 10 years now. Big ones, tiny ones, fancy ones (like this lovely specimen) and plane ones. Scientists at NYU are interested in how the well ordered rows (the Bayer grid iconoclastica mentions) are regulated as the fly develops. They have done a number of experiments and confirmed that the color sensing cell type in the fly retina of each ommatidium (UV, green, blue, etc) is linked with the color we see from the outside. With most flies the color sensing cells are stochastically (randomly) distributed. This is the only Bayer grid found in nature that I am aware of. Human retinas have stochastic patterns.

BugEZ

Edit for typo
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Pizzazz



Joined: 28 Nov 2013
Posts: 458

PostPosted: Wed Jun 19, 2019 4:14 pm    Post subject: Reply with quote

BugEZ

I had to hold the specimen by its legs, and yes, they were quite long.
These guys sometimes land on my outside trash container lid, and one time
it took me over an hour to catch one and prep it for photos. I am
convinced they are teasing me.

Does the color of the eye benefit the fly?

Mike
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BugEZ



Joined: 26 Mar 2011
Posts: 793
Location: Loves Park Illinois

PostPosted: Wed Jun 19, 2019 4:41 pm    Post subject: Reply with quote

Pizzazz asked
Quote:
Does the color of the eye benefit the fly?


We think so but don’t know exactly how. Some of the orderly pattern flies fish for larvae and nematodes in shallow puddles. Others catch prey (small midges) on the wing. Others eat small leaf lice and aphids off the tops of the foliage where they tend to hang out. The hierarchy of escape-hunt-breed does not provide a common visual denominator that we can easily recognize. The dolichopodidae know but are silent on the topic.

Generally, Mother Nature is not wasteful and traits that are not needed tend to disappear rather quickly. So my guess is that it definitely benefits the critter some way.

A good question and one I puzzle over often.
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BugEZ



Joined: 26 Mar 2011
Posts: 793
Location: Loves Park Illinois

PostPosted: Wed Jun 19, 2019 4:51 pm    Post subject: Reply with quote

Regarding “it took me over an hour to catch one”...

https://youtu.be/LQb6fyFMBzg

https://youtu.be/xuwslq2-AY4

For a long time I used a net. Then the graduate student the second video was made for showed me how to catch directly into a cup. Much quicker as the fly wrangling overhead of getting the fly in a cup is omitted.

K
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rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 20182
Location: Richland, Washington State, USA

PostPosted: Wed Jun 19, 2019 9:09 pm    Post subject: Reply with quote

BugEZ wrote:
...catch directly into a cup...

Once upon a time, I found myself without a net and wanting to catch some butterflies. In desperation I tried a small clear plastic bag, and found to my surprise that it worked great! My speculation is that the bag was transparent enough that the butterflies did not perceive it as a threat. Many of them did not even react as I slowly lowered the bag around them. Have you checked to see if completely clear plastic cups would work even better with your flies?

--Rik
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Lou Jost



Joined: 04 Sep 2015
Posts: 3847
Location: Ecuador

PostPosted: Wed Jun 19, 2019 9:30 pm    Post subject: Reply with quote

Quote:
"Generally, Mother Nature is not wasteful and traits that are not needed tend to disappear rather quickly. "


I agree, but some traits are just useless accidental consequences of other traits that do convey a selective advantage. For example, there's no selective advantage to blood being red, per se. This just happens to be the color of a chemical that works well for oxygen transport.
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