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Hi. Interesting read, but in fact it’s only the female horsefly that bites. Males are quite harmless and lack biting mouth parts entirely. Females need a blood meal to help with egg development. The captured Cleg fly in the photos is a female, so once she was free, she would have been very capable of giving you a bite.
thanks for pointing this out Malcolm.
I don’t suppose there’s an easy way of telling the sexes apart when they land on you?
Rydyn ni'n elusen sy'n derbyn cymorth ariannol oddi wrth Lywodraeth Cymru a Chyngor Sir Caerfyrddin. Cofrestrwyd yng Nghymru. Cwmni 2909098 Elusen 1036354
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