Saturday 17 August 2019

Blaencaerau

Weather today was fine after 3 days heavy rain but I wasn't expecting to record 36 species of hoverfly. Eristalis tenax (130) was the most numerous, while "good" records included Chrysotoxum bicinctum (1), Chrysotoxum festivum (4), Dasysyrphus albostriatus (1), Eupeodes corollae (6), Eupeodes luniger (6), Leucozona glaucia (3), Leucozona laternaria (1), Melangyna umbellatarum (1) and Xanthogramma pedissequum (7).

Few butterflies about with Common Blue (5) the most numerous. The micro moth specialist of Angelica - Phaulernis fulviguttella was the 4th record for Glamorgan following on from last year when I found it up Top Llangynwyd (2nd record for Glamorgan) and obviously new for the C.O.P. All other insects were the usual suspects. 6 Swift were over Caerau for most of the late afternoon/evening, this being quite a late date for the species and were passage migrants rather than breeders that all left by the 1st August.

 Chrysotoxum festivum
 Baccha elongata on the only Fennel plant in Caerau
 Phaulernis fulviguttella
 Common Blue

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