The old railway line has been made into a public tarred walkway for a number of years now, but is proving a gold-mine for hoverflies, with its rich helping of flora and gets better as the year goes on. Today I recorded 24 species there and new for the year was Chrysotoxum bicinctum (number 73 for the year). The Caerau 1 km square is rapidly heading towards the 100 species mark, now standing at 84.
Chrysotoxum bicinctum
Eristalis tenax - seems to be a mini emergence (21) with the blossoming of Ox-eye Daisy
Melangyna lasiophthalma - a rather late individual for this early spring species (checked in hand to confirm it wasn't "arctica")
Merodon equestris - all black with a white tail form (uncommon)
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