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I have been interested in nature for most of my life but since I retired I spend as much time as I can exploring the nature reserves and wildlife hotspots of my adopted home, Dorset in southern England. Whilst out I record what I see and take snaps where I can (I am no photographer!) and that forms the basis of my Nature of Dorset website. When I find something new I like to research it and write about it in my nature notes, it is how I learn and hopefully you might find my notes helpful as well!

This website is for the people of Dorset interested in wildlife and for people from elsewhere interested in the wildlife of Dorset!

07 September, 2015

Hoverfly: Eristalis pertinax | Nature Notes from Dorset

In late summer we have many flowers of the daisy family in full bloom, especially thistle, knapweed and fleabane. These are ideal places to take a closer look for insects, especially hoverflies. One of the most common species is this one, Eristalis pertinax. It is quite a large insect with a slightly pointed or tapered abdomen which is unique to this member of the quite similar species in the Eristalis family. The abdomen is black but with two noticeable white lines across. The thorax is bright orange but with a dark X shape on it.
This insect is actually on the wing continuously throughout the summer from March to November but as adults only live three or four weeks it means that there must be almost continuous broods throughout the spring, summer and autumn.
Larvae have been found in farmyard drains

Read more: Hoverfly: Eristalis pertinax | Nature Notes from Dorset