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Cicindela in spring mode

 
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Troels



Joined: 15 Feb 2016
Posts: 453
Location: Denmark, Engesvang

PostPosted: Thu Apr 25, 2019 2:00 pm    Post subject: Cicindela in spring mode Reply with quote

Last year I posted pictures of the brown Cicindela hybrida.
To day I was lucky to observe the beautiful green Cicindela campestris depositing eggs in the sandy soil on the track i use so often.

Suddenly an other Cicindela arrived, attacked the first one and grabbed her in the neck with his big jaws. After a second he shifted the grip and started mating.

I thought it might be the right curcumstances to get a chance to get close enough with my 60 mm macro lens. And sure enough.

(Full size at Flickr )

Handheld, natural light.
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Troels Holm, biologist (retired), environmentalist, amateur photographer.
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DesolateMirror



Joined: 12 Jan 2018
Posts: 13

PostPosted: Fri Apr 26, 2019 7:35 am    Post subject: Reply with quote

Great capture.
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Harald



Joined: 13 May 2011
Posts: 552
Location: Steinberg, Norway

PostPosted: Fri Apr 26, 2019 12:39 pm    Post subject: Reply with quote

Hi Troels,
Those Cicindela are a really great subject.
Do they normally live in sand area?

Would love to do some images of them myself.

Great shot and thanks for sharing Very Happy
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Harald

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MarkSturtevant



Joined: 21 Nov 2015
Posts: 542
Location: Michigan, U.S.A.

PostPosted: Fri Apr 26, 2019 12:59 pm    Post subject: Reply with quote

Beautifully photographed!
A female laying eggs would already be mated, but I guess they will allow mixed husbandry of their offspring.
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Troels



Joined: 15 Feb 2016
Posts: 453
Location: Denmark, Engesvang

PostPosted: Sat Apr 27, 2019 1:26 am    Post subject: Reply with quote

Thanks for responding!

Harald,
The Cicindela (aka Tiger Beetle and in Danish: Sandspringer) prefer sandy soil, heather land and sunny weather.
The adults hunt by running around on the sandy surface while the larva hunt by lurking in a hole in sandy soil, often along track and paths.
If you missed it I described the life of the larvae [url= https://eol.org/pages/2869562] here. [/url]

I can see here that they are found in Norway up to Tromsoe but most abundant in the southern part of Norway. Good luck with the hunt!

Mark,
as far as I understand, in many insects the eggs are not fertilized during the mating. Instead the siemen is stored in a receptacle untill the moment the eggs are layed. Perhaps the female just filled op the storage before a new turn of egg laying.

The father could the same or a different one. Difficult to say.
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Susan Smitha



Joined: 21 Feb 2019
Posts: 11
Location: Dhaka, Bangladesh

PostPosted: Sat Apr 27, 2019 3:43 am    Post subject: Reply with quote

Fabulous shot!
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zzffnn



Joined: 22 May 2014
Posts: 1807
Location: Texas USA

PostPosted: Sun Apr 28, 2019 6:18 am    Post subject: Reply with quote

Very nice image, thank you for sharing, Troels. Cicindela beetles are my favorite common ones.

I am surprised f/13 on micro four thirds can produce such deep DoF at that magnification. Did you crop the image?

I have not been able to produce nice macro images under natural light, so would be nice to learn from you. Thank you again.
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Troels



Joined: 15 Feb 2016
Posts: 453
Location: Denmark, Engesvang

PostPosted: Sun Apr 28, 2019 9:20 am    Post subject: Reply with quote

Thanks for commenting!

zzffnn,
Yes, I have cropped the original image to almost 50% width resulting in a ca. 4 MP image (before resizing to the desired 1024 px at pm.net). Not high resolution for big prints, but enough for impressive images on the web.

Ideally I should have used a longer focal length, but my new 40-150 mm has not arrived yet! Using only 60 mm i was reluctant to get very close to the sharp eyed animal. I is very alert and got scared after my first 8 pictures.

It is always a challenge to get good macro images of live animals under natural light conditions. Especially since direct sunlight often makes ugly shadows. I always produce tons of shaken or out-of-focus Pictures.

In this case I turned up the ISO to 800 realizing I needed both high f-number and fast shutter. And I lay flat on my stomach with albows resting on the ground ("body tripod"). Most of my "wildlife" macro shots are cropped more or less to fill the frame.
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