Harpalus calceatus (Duftschmid) (Carabidae) in Norfolk:established in the East Anglian Brecks or still a British vagrant?

摘要

On 13 August 2020 SAL arrived at Weeting Heath NR (TL757880) at 10am to look through the Robinson MV moth trap contents that had accumulated over the previous night.The temperature between dusk and dawn from 12 to 13 August varied between a maximum of 26° C and a minimum of 18° C;the wind speed was a negligible 5-6 mph easterly backing northerly and the night was mostly overcast with a relative humidity exceeding 90.These are considered to be typical conditions for good beetling at nocturnal light traps (pers.obs.).