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Green dock leaf beetle

Posted: Tue Jun 02, 2015 7:50 pm
by adampembs
While looking for rusts, I came across these, which a Google search quickly revealed to be Gastrophysa viridula - Green Dock Leaf Beetle. Had to create a new forum :-)

Re: Green dock leaf beetle

Posted: Tue Jun 02, 2015 9:16 pm
by marksteer
Is this the one when eggs hatch: http://en.wikipedia.org/wiki/Gastrophysa_viridula
Docks in Brynna Woods always show 'holes' I presume this maybe culprit?

Re: Green dock leaf beetle

Posted: Tue Jun 02, 2015 9:18 pm
by adampembs
Yep :)

Re: Green dock leaf beetle

Posted: Wed Jun 03, 2015 6:26 am
by jimmymac2
Those eggs are certainly Green Dock Beetle, Adam! ;)
They're very common this year, this is the first year I've found one in my local nature reserve. Does anyone else think they're more common this year? There is definitely a huge amount of pregnant females.

Re: Green dock leaf beetle

Posted: Wed Jun 03, 2015 10:40 am
by diggleken
So guys, Jimmy partic I suspect - is this right - from a bioblitz at the weekend - I've been puzzling them?
Cheers
Ken

Re: Green dock leaf beetle

Posted: Wed Jun 03, 2015 6:56 pm
by Wood Wanderer
Must be an excellent year for them, seem to be on every other dock leaf around here ...

Thanks for the ID Adam and Jimmy, was wondering what they were :)
DSC_0001.JPG
John

Re: Green dock leaf beetle

Posted: Wed Jun 03, 2015 7:45 pm
by Chris Yeates
Note also the developing white tufts of conidia of the "hyphomycete" fungus Ramularia rubella "NE" of the eggs . . . .

Chris

Re: Green dock leaf beetle

Posted: Wed Jun 03, 2015 7:59 pm
by Wood Wanderer
Chris Yeates wrote:Note also the developing white tufts of conidia of the "hyphomycete" fungus Ramularia rubella "NE" of the eggs . . . .

Chris
Thanks for that Chris, I did wonder if it was a fungus but well outside my limited expertise... :lol:

John

Re: Green dock leaf beetle

Posted: Thu Jun 04, 2015 6:26 am
by jimmymac2
diggleken wrote:So guys, Jimmy partic I suspect - is this right - from a bioblitz at the weekend - I've been puzzling them?
Cheers
Ken
Hi Ken,
These look a bit too roundish for Green Dock Beetle, don't you think? Wood Wanderer's photo and Adam's photo are much more elongated. And was it definitely on Dock? The leaf looked quite hairy and they will mainly (or only) lay their eggs on Dock leaves.

Re: Green dock leaf beetle

Posted: Thu Jun 04, 2015 7:10 am
by diggleken
Thanks Jimmy,
I have no experience of these eggs - the adults were noted there though, close by, in a damp place.
But they were also stood up as butterflies lay them, not prone as in the other pics on this thread.
The leaves may well be something else, Coltsfoot /Butterbur, but I didn't pay attention...............
Its not crucial, but thanks anyway..........I may never know, I'll pay more attention next time - learning curve for egg watching! ;)
Cheers
Ken

Re: Green dock leaf beetle

Posted: Thu Jun 04, 2015 12:57 pm
by diggleken
so I did find some on Dock - plus an adult , I think they get like this after mating, gravidly bloated I guess.
Cheers
Ken