Eristalis pertinax tends to be the earliest Lagoon-dwelling hoverfly in the season that you will see, along with Myathropa florea. They often hover in one spot in the air, behaving territorially, and mate-searching. As their name suggests, they have a tapered abdomen, different to E. tenax, and lighter-coloured, yellow middle and front feet.
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![](https://hoverflylagoons.co.uk/wp-content/uploads/2022/05/Eristalis-pertinax_Image-1-1024x886.jpg)
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