Thread subject: Diptera.info :: What are these?< Plecoptera

Posted by Roger Thomason on 29-06-2009 14:27
#1

Found on a small round fence post in a field next to the beach. Was VERY camera shy...which meant I was climbing and re-climbing fence and going round in circles to try and photograph them...one of my neighbours thought I was doing some kind of dance / gone mad :|.
So hopefully I'll get a reply to this post (unlike last 2 here :|)
Regards Roger

Sorry about poor quality of photo's...blame the insect....

Edited by Roger Thomason on 01-07-2009 12:54

Posted by Paul Beuk on 29-06-2009 17:13
#2

I'd say stone flies, Plecoptera.

Posted by Roger Thomason on 29-06-2009 17:25
#3

Thanks Paul these have not been recorded here since the 19th Century,King (1890). Doesn't mean they haven't been here since then though...not many people interested I guess :|. The ones recorded then were;Leuctra fusciventris and Chloroperla tripunctana.

Regards Roger

Posted by Paul Beuk on 29-06-2009 20:17
#4

Leucetra is brown, Chloroperla is more yellowish. At least, in my insect guide. I just put my Dutch key in storage, so cannot check that one.

Posted by Roger Thomason on 29-06-2009 22:04
#5

Thanks again Paul
Appreciate the effort...Maybe Tony Irwin will come up with something...he seems to know unhealthy amounts about some weird insects...
Regards Roger

Posted by John Bratton on 30-06-2009 18:24
#6

They look like Nemouridae to me - the wings on Leuctra are usually more rolled around the abdomen.

John

Posted by Tony Irwin on 01-07-2009 00:56
#7

Roger Thomason wrote:
Thanks again Paul
Appreciate the effort...Maybe Tony Irwin will come up with something...he seems to know unhealthy amounts about some weird insects...
Regards Roger

It's OK Roger - you've finally found my weak spot - the "Riverflies" (Ephemeroptera, Plecoptera and Trichoptera). I am human, not really a search engine with an avatar!

Posted by Roger Thomason on 01-07-2009 10:05
#8

Hi Tony
Sorry if that is the impression I was sending out, it certainly wasn't intended. I appreciate ALL the people who have given ID'S to the photo's I have sent to D.I. Without you folks my pics are just pics of insects, nothing more. To be able to show someone a pic of a fly/beetle or whatever and tell them what is called gives the subject a lot more meaning. I always say where I got the information...Knowledgeable people at Diptera.info.
Regards Roger

Posted by John Bratton on 01-07-2009 12:34
#9

Leuctra fusciventris is an old name for Leuctra fusca.

There was a species list, possibly unpublished, attached to the Nature Conservancy Council's copy of The Natural Environment of Shetland (ed. R. Goodier, 1974) that included the stoneflies Chloroperla torrentium and Leuctra inermis from Pobie Sukka, Many Crooks inflow and White Helliacks; and C. torrentium and Nemoura cinerea from Loch of Tingwall. The list was undated. It was attached to RH Britton's chapter The Freshwater Ecology of Shetland.

The 3rd edition FBA key to stoneflies (Hynes 1977) includes vice-county distribution maps, and Shetland is blacked in for Brachyptera risi, N. cinerea and Leuctra inermis but not Leuctra fusca, Chloroperla torrentium or C. tripunctata.

I've just read about your mishap. Glad you are on the mend.

Best wishes
John

Posted by Roger Thomason on 01-07-2009 12:59
#10

Thanks John...I was only going by the Checklist of Insects supplied by SEG on Nature in Shetland Website.
I've changed the photo to another dire shot (Dorsal) so wings can be clearly seen....Hope this helps some.

Regards Roger

Posted by John Bratton on 02-07-2009 15:50
#11

Definitely Nemouridae - two veins make a broad X halfway along near the front edge. To get to species requires genitalia examination.

John

Posted by Roger Thomason on 02-07-2009 20:09
#12

Thanks John
They seem to be enjoying putting their genitalia to the test in the photo's, so Nemouridae it will remain.

Regards Roger