tag:blogger.com,1999:blog-7553355011221187801.post6564502598428652621..comments2023-05-29T09:56:45.316+01:00Comments on Glamorgan Moth Recording Group: DuffrynVC41Mothshttp://www.blogger.com/profile/17263945533123756002noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7553355011221187801.post-91775410377020033972012-10-09T12:36:00.367+01:002012-10-09T12:36:00.367+01:00Note also that it's the frass in the first thi...Note also that it's the frass in the first third of the mine you need to look at, as both species show clear margins therafter.Barry Stewarthttps://www.blogger.com/profile/12080358305675651314noreply@blogger.comtag:blogger.com,1999:blog-7553355011221187801.post-51285462449842931432012-10-07T10:43:20.566+01:002012-10-07T10:43:20.566+01:00Thanks George! I did check the fresh leaf for fra...Thanks George! I did check the fresh leaf for frass before taking it home so I think S microtheriella is a safe bet.Adam Mantellhttps://www.blogger.com/profile/08825643943800910778noreply@blogger.comtag:blogger.com,1999:blog-7553355011221187801.post-51688591000377111212012-10-07T08:27:57.975+01:002012-10-07T08:27:57.975+01:00It can be hard to tell Stigmella microtheriella / ...It can be hard to tell Stigmella microtheriella / floslactella from old mines when the frass has dried up, so I'm not sure you'll be able to record that one with certainty.<br /><br />The second one is Phyllonorycter coryli - the big upper surface blotches are distinctive. See:<br /><br />http://leafmines.co.uk/html/Lepidoptera/P.coryli.htm<br /><br />GeorgeGMThttps://www.blogger.com/profile/08759152282751126808noreply@blogger.com