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Great Diving Beetle (Dytiscus marginalis)

By cyclingrelf
According to Wikipedia, the Great Diving Beetle is a voracious predator, hunting insects, tadpoles and small fish in ponds. However, they sometimes come out and fly looking for a new pond, which they find by the reflection of the moon on the surface of the water.

This one was running about in the polytunnel where I was flint knapping. I think it was fooled by the flood lights we had on.

Information on Arkive suggests that this beetle is a male, as it has the large suction pads on its front legs and the wing case is not ridged.

Tags: Insect Beetle Close-up and macro Pebble Wildlife and nature Flash and lighting Great diving beetle Dytiscus marginalis

Voters: User_Removed, Kool_Kat, Andrekarl and 7 more

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23 Jan 2008 12:52PM
Ukulele_lady - sorry! This is the best photo from my flint knapping, I think. But if you want to see some of the others, I've uploaded 18 of them to my Flickr account (where I'm not being so fussy about quality) Smile. I'm still cyclingrelf on Flickr, and you can look without needing to register or anything.

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Andrekarl 11 7 South Africa
23 Jan 2008 1:12PM
Cracking shot. Lighting makes this macro stand out for me. Well done. Andre
23 Jan 2008 2:44PM
Well taken shot of a scary looking beastie
fishy2 10
23 Jan 2008 4:06PM
very good macro work.
23 Jan 2008 5:38PM
Hi there! I'll Google flint knapping to satisfy my curiosity as well as checking out Flickr if I can although I didn't find it very user-friendly the one time I did visit....I have to say though, when I get on 'Who wants to be a Millionaire' I want you to be my 'Phone a Friend' for the added info on my Birch Polypore, and also your Sparassis crispa envy is very'm looking forward to a feast later this year, earwigs or no earwigs!

Love your bug by the way, and thanks for the info on him.
23 Jan 2008 6:21PM
Thanks everyone for telling me a little more about what you liked - it really helps me to improve.
Ukulele_Lady - you just hit lucky with your subjects. I happen to enjoy bushcraft, so I know a little bit about what uses plants/mushrooms/rocks can be put to.
If you put cyclingrelf into the search box on the Flickr front page, you'll see a picture of me taken by Relfy (my sister), then the next picture is of my sister winching up a boat and taken by me. It's not a good one - it's there as a record! But if you click on my name on the second picture, it will take you to my photos and you can see flint knapping in action. Smile
Assyrian 10 132 Scotland
14 Feb 2008 3:08PM
Great shot - and unusal too. Not that common to find them running around. Must get a polytunnel up then sit waiting......

14 Feb 2008 9:15PM
Thanks so much for looking Chris. All you have to do is go flint knapping with John and Val Lord in Norfolk at the beginning of January.
For a flint knapping day course with John and Val Lord visit their website here:
It's well worth it - expert instruction in a very unusual skill AND amazing insects as well.

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