Thread subject: Diptera.info :: Water measurer - Hydrometra stagnorum

Posted by nick upton on 06-05-2010 12:09
#1

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

Posted by nick upton on 06-05-2010 12:11
#2

Another view of this water measurer on the water surface of a stream

Posted by atylotus on 06-05-2010 12:29
#3

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.

Posted by nick upton on 06-05-2010 13:25
#4

OK, many thanks for this helpful feedback.