Ivy watch season saw me visit Caerau (13 species) and Maesteg Welfare Park (12 species) this week. Highlights were surprisingly late Chrysotoxum arcuatum and Sphegina clunipes. Otherwise the commonest hoverfly was Episyrphus balteatus (32). Nothing much else to report except Ivy Bees are hanging on at Caerau.
Chrysotoxum arcuatum
Episyrphus balteatus
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