The recent cold weather and frosty nights have put a hold on the spring hoverfly emergence. But temperatures over the last few days have been getting warmer, so I stopped off at the park on the way home as I have finished nights for the time being. Six species were located on the flowering Blackthorn with the prize being a female Criorhina ranunculi. Most numerous species was Platycheirus albimanus (15) and new for the year was Cheilosia pagana (2 female). A Cheilosia that got away could have been caerulescens as there are quite a few "House Leeks" in the flower beds. Not much else about except 2 singing Chiffchaff.
Criorhina ranunculi
Cheilosia pagana
Cuckooflower
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