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| 1 | 2 |  » Stats |
Members: 50,156
Threads: 82,348
Posts: 853,271
Top Poster: glsammy (15,069)
| | Welcome to our newest member, angelina50 | |  | | 
23-09-2011, 04:10 PM
|  | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | ID : Possible Lygus Species. (Heteroptera)
Hello,
I have a couple of Hymenotopteran specimens that I belive might be of the Lygus group. These were from the Grand Western Canal in Mid Devon on umbellifers. Is anyone able to offer an opinion on this please?
Regards,
Andrew.     |
23-09-2011, 04:15 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2006
Posts: 13,609
| | | Re: ID : Possible Lygus Species. (Heteroptera)
I can't tell you what it is, but you are getting your orders confused!  I'm sure you meant Hemipteran + not Hymenopteran. |
23-09-2011, 05:27 PM
| | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Well spotted! That's what mowing a large garden does for you, makes you tired and sloppy. 
Regards,
Andrew. |
23-09-2011, 09:17 PM
|  | Commander of the Wild Empire | | Join Date: Jan 2007 Location: London
Posts: 1,011
| | | Re: ID : Possible Lygus Species. (Heteroptera)
certainly Lygus and it is densely hairy, suggesting L. rugulipennis as the most likely ID |
23-09-2011, 09:51 PM
| | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Quote:
Originally Posted by tristanba  certainly Lygus and it is densely hairy, suggesting L. rugulipennis as the most likely ID | Fantastic, thanks Tristan. Would a close up of the hairs help in a conclusive identification. I am not clear on the hair length to spacing ratios as I could not see them that well with the hand lens but the new Raynox lens adapter may do it.
Meanwhile, I will brush up on L. rugulipennis tomorrow and see if I can nail it.
Regards,
Andrew. |
07-10-2011, 06:09 PM
| | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Hello,
I am undecided on this one. Examining the hairs at 40x with good lighting suggests to me either L. pratensis or L. rugulipennis with a leaning towards the latter after checking this link... http://www.hetnews.org.uk/pdfs/Issue...2004_422Kb.pdf .
If I had confidence in what I could see then I would plump for the latter but I think I need to see a few more specimens of Lygus.
Regards,
Andrew. |
07-10-2011, 06:17 PM
|  | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,831
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Familiarity with a range of specimens from a difficult group is the best way to build confident intuition.
How do you keep these? |
07-10-2011, 06:47 PM
| | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Quote:
Originally Posted by Jason Green Familiarity with a range of specimens from a difficult group is the best way to build confident intuition.
How do you keep these? | Evening Jason,
I keep them in a small pot with some tissue paper and a drop of white vinegar until I am ready to examine them. With this one I had to dry it off and even then I think having been wetted for some time it made the hairs hard to 'read'.
Regards,
Andrew. |
07-10-2011, 06:56 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,831
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Have you started pinning yet? I'm just a little concerned, or rather I would be if 'wet-storing', that fine hairs (critical here in the absence of male genitalia) may become decumbent and subsequently hard to evaluate. I micro-pin through the scutellum, others will card-up.
What does the white vinegar do? Sounds interesting. |
07-10-2011, 07:21 PM
| | Officer of the Wild Empire | | Join Date: Feb 2011 Location: Devon, UK.
Posts: 536
| | | Re: ID : Possible Lygus Species. (Heteroptera)
Quote:
Originally Posted by Jason Green Have you started pinning yet? I'm just a little concerned, or rather I would be if 'wet-storing', that fine hairs (critical here in the absence of male genitalia) may become decumbent and subsequently hard to evaluate. I micro-pin through the scutellum, others will card-up.
What does the white vinegar do? Sounds interesting. | I have not started pinning or storing bugs yet. I expect I need to find a suitable storage medium first.
The white vinegar is just an extension of good advice by Klaas on beetles, it stops them going mouldy until I am ready to examine them.
Regards,
Andrew. | | | |
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