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Diptera.info :: Identification queries :: Other insects, spiders, etc.
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Water measurer - Hydrometra stagnorum
Nick Upton
#1 Print Post
Posted on 06-05-2010 13:09
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Location: Wiltshire, UK
Posts: 789
Joined: 12.03.10

I think this stick insect-like bug has to be Hydrometra stagnorum - water walking with a springtail it is sucking. The only other UK species is rare and further to the east than I live.

Wiltshire, southwest UK 17.4.10
Nick Upton attached the following image:


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Nick Upton - naturalist and photographer
 
Nick Upton
#2 Print Post
Posted on 06-05-2010 13:11
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Location: Wiltshire, UK
Posts: 789
Joined: 12.03.10

Another view of this water measurer on the water surface of a stream
Nick Upton attached the following image:


[117.33Kb]
Nick Upton - naturalist and photographer
 
atylotus
#3 Print Post
Posted on 06-05-2010 13:29
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Location: Amsterdam, NL
Posts: 932
Joined: 29.05.09

Dear Nick
I think you're right. I even think that I can see the teeth at the posterior edge of the sternites 6 and 7 which makes it a male H. stagnorum. Besides this, the specimen is not as reddish brown as I'm used to see in H. gracilenta, but more blackish brown as in H. stagnorum.
 
Nick Upton
#4 Print Post
Posted on 06-05-2010 14:25
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Location: Wiltshire, UK
Posts: 789
Joined: 12.03.10

OK, many thanks for this helpful feedback.
Nick Upton - naturalist and photographer
 
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