newsletter 21.pdf - Dorset Moth Group

Dorset Dragonflies
Many birders have turned to moths for a new interest and now it seems there is yet another object of
study which is becoming extremely popular – Odanata. In recent years, proably as a result if this
burgeoning interest, there have been many records of immigrant dragonflies, some from across the
Atlantic.
Davog McCloskey,working for the Dorset Wildlife Trust is trying to set up a Dorset Dragonfly Group,
an iniative which is long overdue. An initial meeting was to be held at the DWT headquarters at
Brooklands Farm on 7 th . April (unfortunately before this newsletter was published)
Davog would like to hear from anyone interested in recording this fascinating group of insects and can
be contacted at;
www.awtc.co.uk/dorset-ecological-consultancy/index.html
Or by phone on 01305 217972
Ringmoor NT near Turnworth Moth Survey 2008
This downland coombe with its assemblage of 300+year old oaks is a regular favourite for our family
walks so permission was sought from the National Trust warden for moth trapping to take place. 6
dates between early May September were agreed and the grazier also informed.
We placed MV and Actinic traps under Hazel, Oak and Ash as well as in the unimproved chalk
grassland glades full of Eyebright, Cowslips, Birds-foot Trefoil and other calcareous plants. The area
is grazed by cattle in late summer and winter which allows flowers to set seed as well as controlling
grasses and small scrub in a traditional pattern. The National Trust ran an excellent guided walk in the
summer here explaining the management from selective reduction in Ash to grazing benefits for Moths
and Butterflies.
Moths included Small White Wave, Small Phoenix, Least Black Arches, Light Emerald, Orange
Footman, Sharp-angled Carpet, Clouded Brindle, Marbled White Spot, Common Lutestring and a very
large female Black Arches heavy with eggs who was placed carefully back in the vegetation.
Svensson’s Copper Underwing was identified by Peter Davey who also added 22 species of micros to
the events. Our total species number was 146. 3 of the days had 12 degC temperatures and 3 had 8
degC. This valley is usually 2 degC cooler than the tops of the hills which is a disadvantage for some
moth species. The results have been sent to the Dorset County Moth Recorder and to the National
Trust for their local and national records.
The need to have pre-agreed dates was emphasised by the arrival one evening of a very courteous
farmer whose gates and machines had recently been vandalised. In future even more people need to be
informed! This also makes it tricky to advertise dates on public websites. People who visited on non
agreed days would lower the DMG and Butterfly Conservation reputation with land managers, I await
with interest members comments on this. If you wish to be informed of a future moth event please
send me an email.
Thank you to all the members who came along with their ID knowledge, generators, traps and good
humour.
Lawrie de Whalley
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