Matthew pointed out that, at the end of the season, it is difficult to spot them unless you are experienced enough to know where and how to look. In Upper Thames we have two people who possess this quality in spades: Wendy & Mick Campbell. They have been out looking almost every day in many woods since they saw the first on June 17th. Yesterday, three were seen in Waterperry Wood [including a female ovipositing], and today, one in Little Wood. So, that is 5 weeks so far, which is a normal flight season length.
I agree with Matthew, because the end is nigh, it is no reason to stop blogging!
Why don't we discuss our experiences, where they add to knowledge of the ecology of HIM?
For example, I have written two blogs concerning possible influence of light and temperature on activity, and dispersal, but the response has been meagre!