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Female Hoverfly

Female Hoverfly

Male Hoverfly

Male Hoverfly

♂ Male or Female ♀

For most species of hoverflies, the males have larger eyes that meet in the middle (holoptic) whereas for females there is a gap (dioptic) this can be used out in the field for sexing – see below.

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Hoverflies with wings loops

Hoverflies with wings loops

Hoverfly Wing Loops

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Several hoverflies have a loop in their wing veins.
Common (Eristalis tenax) & Tapered Dronefly (E.pertinax) are just two on the wing at present.

Anyone seen any over the last few days?

I saw quite a few of the Tapered on my walk today.

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ℹ️The Spotted Thintail like the Marmalade hoverfly are affected by temperature 🌡️ during development, a term called temperature-dependent phenotypic plasticity 🧠. So, if it is cold the emerging adult will be much darker in both scutellum and the abdomen banding than a summer brood. 📌
#HoverflyFact

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