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Diptera.info :: Identification queries :: Diptera (adults)
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Ariasella lusitanica, Hybotidae
Rui Andrade
#61 Print Post
Posted on 16-03-2008 20:41
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So many nice images that Jorge has, I'm a little enviousPfft.

crex said:
Did you see any more hunting activities or were they just humping around?


Today I saw one male catching a little dipteran, as it happenedCool. I will tell you how it happened:
I was watching the male hybotid, who was on an eucalyptus leaf and, as little creatures strolled by he reacted to them, following them with his eyes. When a small dipteran passed in front of him he focused on it and attached when the prey turned its back on himShock. It was amazing to see.

Jorge Almeida said:
smiley precisely. he didn't care anything about the "MANY" bounces he had. smiley this is what I call "hard sex". smiley


I also saw the "soft sex"Grin. Even though the female carried the male, it wasn't really soft (you will find out what I mean when I send a video to JorgeWink).

img142.imageshack.us/img142/2967/hy1uy6.jpg

img142.imageshack.us/img142/4271/hy2wv0.jpg

img142.imageshack.us/img142/7360/hy3rc6.jpg
 
www.flickr.com/photos/rui_andrade/
jorgemotalmeida
#62 Print Post
Posted on 16-03-2008 20:45
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what? this fly knows all kamasutra positions! ShockCool
I'm waiting eagerly for those new videos. Smile
 
http://www.flickr.com/photos/superegnum
Rui Andrade
#63 Print Post
Posted on 16-03-2008 20:45
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Photos from the habitat:

img444.imageshack.us/img444/3184/habit1fa5.jpg

img444.imageshack.us/img444/1613/habit2pk3.jpg

img444.imageshack.us/img444/3569/habit3cj9.jpg
 
www.flickr.com/photos/rui_andrade/
jorgemotalmeida
#64 Print Post
Posted on 16-03-2008 20:47
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Ulex spp. in full blossom. GrinPfft
The second photo shows precisely the site/local where we spotted the flies yesterday. Pfft

ah, almost I forgot... Thanks Tony and Pierre. Smile
 
http://www.flickr.com/photos/superegnum
jorgemotalmeida
#65 Print Post
Posted on 16-03-2008 22:29
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more one video: http://www.youtub...VfeJQ3MP_8
Grin
 
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jorgemotalmeida
#66 Print Post
Posted on 17-03-2008 00:36
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new video on predation: http://www.youtub...W4BqHk7bY4
 
http://www.flickr.com/photos/superegnum
crex
#67 Print Post
Posted on 17-03-2008 08:29
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Rui Andrade wrote:
Photos from the habitat:


... but the fly images you've shown are almost all on sandy ground!? Not much vegetation seen there.
Edited by crex on 17-03-2008 08:30
 
Rui Andrade
#68 Print Post
Posted on 17-03-2008 15:57
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crex wrote:
... but the fly images you've shown are almost all on sandy ground!? Not much vegetation seen there.


They pretty much walk around everywhere, but it's much less difficult to photograph them in the open area (blue circle) than in the middle of the vegetation (red circle).

img148.imageshack.us/img148/438/habit2pk3id5.jpg
 
www.flickr.com/photos/rui_andrade/
Susan R Walter
#69 Print Post
Posted on 17-03-2008 16:00
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I notice that in the video where the male is mounted, he is also quite rigid - he doesn't appear to be using his front and rear legs to cling on, they are just stiffly outstretched.

In the predation video, the frantic action of the back legs reminds me of the madly wagging tails of lambs when they feed.

Fascinating stuff - well done you two.
Susan
 
http://loirenature.blogspot.com/
Rui Andrade
#70 Print Post
Posted on 17-03-2008 17:22
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Susan R Walter wrote:
I notice that in the video where the male is mounted, he is also quite rigid - he doesn't appear to be using his front and rear legs to cling on, they are just stiffly outstretched.

In the predation video, the frantic action of the back legs reminds me of the madly wagging tails of lambs when they feed.

Fascinating stuff - well done you two.


Thank you SusanSmile. Yes, the male never moved during the whole mating. But I wonder why the female caused all that agitationFrown. Maybe to increase the chances of fertilization?
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#71 Print Post
Posted on 11-04-2008 20:53
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On the last Wednesday (09/04/2008) I found several Tachydromia. Today this dead female has that strange white structure on the tip of the abdomen. What is it? Eggs? A parasite?

img145.imageshack.us/img145/6133/hybotidcv0.jpg
 
www.flickr.com/photos/rui_andrade/
Paul Beuk
#72 Print Post
Posted on 11-04-2008 21:13
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Those are eggs.
Paul

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Paul Beuk on https://diptera.info
 
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jorgemotalmeida
#73 Print Post
Posted on 11-04-2008 21:17
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eggs, of course. Smile As I told you in the email. Pfft
 
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Rui Andrade
#74 Print Post
Posted on 11-04-2008 21:25
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ThanksSmile

What do I do with the eggs? Put them in alcohol?
 
www.flickr.com/photos/rui_andrade/
Paul Beuk
#75 Print Post
Posted on 12-04-2008 09:27
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If they are not dried out yet, please, do so.
Paul

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Rui Andrade
#76 Print Post
Posted on 13-04-2008 01:44
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Ok, thank you Paul.
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#77 Print Post
Posted on 05-05-2008 21:57
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Today I finally saw the beginning of a mating of TachydromiaSmile.
I've decided to fallow a male to see if I found anything new. After a few minutes, I saw him catching a small dipteran, and some more later a female approached and mating began at an amazing speed. I wasn't even able to tell who made the first moveShock. When I finally made sense of what was going on, the female was feeding off the male's prey (did the male give it voluntarily, or did the female stole it?).
Unfortunately I couldn't manage to film the scene, it was too quickSad.


img137.imageshack.us/img137/5864/t2re7.jpg
1- male feeding before the mating

img137.imageshack.us/img137/9261/t3mm4.jpg
2- mating (female with prey)

Another intresting thing happened before the mating. While the male was feeding, a spider tried to attack him. As a response, the male repeatedly lifted his abdomen trying to intimidate his opponent, and succeededSmile. I only got to take one sloppy photo of this behaviour.

img137.imageshack.us/img137/6379/t1bn4.jpg
3- defensive behaviour

img137.imageshack.us/img137/9669/t4pp6.jpg
4- during the hottest part of the day, a female takes cover from the heat thanks to the vegetation


.
 
www.flickr.com/photos/rui_andrade/
jorgemotalmeida
#78 Print Post
Posted on 05-05-2008 22:24
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"attenborough andrade" Grin
 
http://www.flickr.com/photos/superegnum
Rui Andrade
#79 Print Post
Posted on 06-05-2008 22:48
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Today I started to look for Tachydromia at around 8 AM, until 6 PM. I only found 3 specimens. The adults are disappearing.
I found 2 females and 1 male, all of them in the afternoon. After several hours searching for specimens without success, I finally found the last two almost simultaneously at around 5.40 PM. Why is it? Chance?
 
www.flickr.com/photos/rui_andrade/
jorgemotalmeida
#80 Print Post
Posted on 06-05-2008 23:11
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they are not tolerable to the heat, maybe.
 
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