Posted by Juergen Peters on 03-01-2011 04:55
#12
Hi, Nick!
Nick Upton wrote:
Tim Worfolk finds germanica the most common by far in Devon, followed by communis
That also differs by season. To my experience
P. germanica is the earliest species in spring (2-3 weeks earlier than
communis) and very numerous from late April to late May/early June. Later
P. communis becomes more abundant and is - over the whole season - the most numerous species.