Contents Page
The YNU, Covid-19 and 2021 Andy Millard 161
Michael Clegg’s Yorkshire House Mice: A tale of tails C. A. Howes 162
Tree colonisation of upland grassland in the Peak District following
exclusion of livestock R. Goulder
169
Bibliography of Peter Skidmore PhD FRES Martin Limbert 179
Field Note: Ahoy there! The Nationally Scarce pirate spider Ero aphana
new to Yorkshire Sam J. Buckton
180
Investigations of the Aculeate Hymenoptera of urban York*
Michael E. Archer
182
Breeding birds to the west of Sheffield – are the reported declines just
an artefact caused by differences in observer competence?
David Gosney
188
Clearwing moths in East Yorkshire Andy D. Nunn 195
The use of DNA metabarcoding in studying the diet of two
lichenivorous moths* Michael Pearson
199
Yorkshire Auchenorrhyncha Part 4, Cicadomorpha – Membracoidea:
Cicadellidae – Typhlocybinae (leafhoppers) Stuart Foster
203
YNU Bryological Section: Report for 2019 T.L. Blockeel 209
Yorkshire Ichneumons: Part 12 W.A.Ely 213
Going for a walk in the countryside – the aculeate wasps and bees of
Sand Hutton Michael Archer
228
Field Note: A fly new to Yorkshire during the lockdown period
Andrew Grayson
231
Field Note: New species from our Covid walks Joyce & Paul Simmons 232
Field Note: Some interesting insects recorded during ‘lockdown’ from
a Barnsley garden J. D. Coldwell
233
In Memoriam: Joyce Payne née Sykes (12 Jan 1923 - 29 Aug 2020) 235
YNU Calendar 2021 239