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| 1 | 2 |  » Stats |
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| | Welcome to our newest member, pywacket4u | |  | 
22-10-2010, 07:26 PM
|  | Commander of the Wild Empire | | Join Date: Nov 2008 Location: Lincoln
Posts: 4,826
| | | Harvestman Opilio canestrinii?
Hello 
A female, bigger than I have read they can grow to. It was probably 9mm, not 8mm for sure.
First time I have seen this! I think it's correct?
Janet   
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22-10-2010, 07:56 PM
|  | Commander of the Wild Empire | | Join Date: Mar 2007 Location: N.W. Lancashire
Posts: 1,611
| | | Re: Harvestman Opilio canestrinii?
If you look at the rows of spots running longitudinally along the body section, and the eyes that converge at the top of the ocular tubercle, this is typical of O. cannestrinii ... |
22-10-2010, 08:20 PM
| | Commander of the Wild Empire | | Join Date: Nov 2008 Location: Lincoln
Posts: 4,826
| | | Re: Harvestman Opilio canestrinii?
Thanks for confirmation Gordon, do you know how far these have spread? I read that they only came here in 1999.
Adding that this must have been here for a while to have grown to that size, do you know how long they take to get fully mature?
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22-10-2010, 08:45 PM
| | Commander of the Wild Empire | | Join Date: Mar 2007 Location: N.W. Lancashire
Posts: 1,611
| | | Re: Harvestman Opilio canestrinii?
Sorry Janet, i dont know much about the distribution, there are no records on the NBN Gateway for the species, i know they are pretty abundant in my area (nr Preston), and i think they are absent in Scotland.
As for the life-cycle, i think they hatch in early Spring and mature in late Summer/early Autumn ... |
22-10-2010, 08:48 PM
| | Commander of the Wild Empire | | Join Date: Nov 2008 Location: Lincoln
Posts: 4,826
| | | Re: Harvestman Opilio canestrinii?
I checked the NBN too, it seems invasive species are not recorded! I found the same with a fly which was introduced.
I guess I will be seeing lots of little ones next year, that is if there's a male close by! I guess they need males... 
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22-10-2010, 11:26 PM
| | Commander of the Wild Empire | | Join Date: Mar 2007 Location: N.W. Lancashire
Posts: 1,611
| | | Re: Harvestman Opilio canestrinii?
Parthenogenesis does occur in species of Opiliones i think, not sure which ones though, and none are in UK the as far as i know.
Your specimen looks gravid to me, so there will be lots of tiny little feet next year ... | | |
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