Hertfordshire and Middlesex news today

Andrew Culshaw had two Emperors at Ruislip around the St Vincents Nursing Home assembly area. Helen Bantock had two males clashing at the Northaw assembly area, Purple Hairstreak were also present. Laurence Drummond had males clashing at another site found last year in the A10 corridor, we later had a female skirting along the edge in cloudy conditions. For us we were looking elsewhere and the absence of Purple Hairstreak were a clue to our lack of sightings! We did however find White-letters at two sites where they were absent on Thursday! Liz and Andrew