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Showing posts from January, 2026

Searching for larvae

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In the brief dry window today I made my first attempt at finding hoverfly larvae this year. My last try failed but it seemed worth i, if only as a break from researching sites for later in the year. I chose to go to a local rewilding site where I am surveying regularly for hoverflies as part of a large volunteer effort. The site, Watercress farm near to Nailsea, is run by the Belmont Estate whose owners are seeking to prove that a nature based solution can generate money as an alternative to an intensive farming. It seems to me that as many alternative land uses as possible should be trialled to give Britain a healthier mix for the future generations. I set up shop in the Poplar Wood to search leaf litter for diapausing (resting phase) larvae.                                                                       ...

Basic kit for identifying and saving specimens

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 I fully understand that many people would not like to catch, kill and preserve Hoverflies, preferring instead to photograph them. That is indeed fine and I have no issue with those views. For myself, though I feel strongly that it is important to know exactly what insects exist so that declines can be measured and action taken. Unfortunately it simply isn't yet possible to identify the majority of UK species in the field. I am fortunate to have the skills and opportunity  to carry out identification using a microscope. To me it is important that I do what bit I can. The UK Hoverflies Facebook group do a great job of recording about a third of the UK species but cannot, yet go beyond this. Roger Morris has written a paper discussing how trends in populations may be being influenced by photographic recording. https://www.researchgate.net/publication/355203638_Is_photographic_recording_influencing_published_trends_in_the_relative_frequency_of_invertebrates?_tp=eyJjb250ZXh0Ijp7Im...

Basic kit when in the field

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  What you carry is, very much, up to your plans for what you see. If you just want to enjoy seeing Hoverflies then you could just go without any kit at all. Or you could just take a notebook and jot down your sightings. Personally I have two main aims that heavily influence how laden I have become. These are to enjoy taking decent quality photographs and to record Hoverflies for posterity with the records being available to scientists, naturalists or others in the future. Having birded for nigh on 60 years I have a loft full of annual notebooks. Re-reading some early ones I realised that no-one else would be likely to plough through them so decided to change to mostly using electronic means. My choices are Ebird for birds and iRecord for insects. Mind you it was eye-opening to read a list where I walked to my nearby wood in the early 70s and simply recorded Turtle Dove as "abundant as usual".  Having said that I still use a notebook for listing what insects I am seeing in th...

Hoverfly Resources: part 2 Online sources

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                                        Black Lagoon Fly (Eristalinus sepulchralis) There are many resources available these days via the internet and I will just mention those that I use most regularly. Most days I have a look at the wonderful UKHoverflies facebook group. https://www.facebook.com/groups/609272232450940 This lets me see hundreds of photos of adult hoverflies which are identified by experts. As well as helping me familiarise myself with many species I also get a good idea as to what is flying currently. The most comprehensive selection of British Hoverfly photos imaginable can be seen at Steven Falk's Flickr pages with many photos each of nearly 300 species. https://www.flickr.com/photos/63075200@N07/collections/72157629600153789/ For checking my own identifications I send every new or tricky species into iRecord usually via the Android app. Web address of main site below...

Hoverfly resources part 1 Books

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 I intend to make this beginners guide as straightforward as possible. To that end I will do some short posts covering resources, equipment and courses for home and field use. Let's start with the books I use. The original is definitely British Hoverflies by Alan Stubbs and Steven Falk. It's a weighty tomb but stuffed full of keys, drawings and information. Until recently it was the go-to publication but I have only just got round to buying a copy to give me an alternative source if I get stuck. The two I use most are, firstly the excellent Wildguide to Hoverflies of Britain and Ireland by Stuart Ball and Roger Morris. This builds on the keys used in the Stubbs one and the third addition uses photos and diagrams to identify many of the British species. I say many because not all can be done from photos as we will see later in this series. My other go-to is now the Hoverflies of Britain and North West Europe by Sander Bot and Frank Van de Meutter.           ...

The search for 100 UK Hoverflies

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For the past two years I have been dipping my toes into a new group of insects; the hoverflies. Having begun to get a basic idea of how to find, identify and record them I have set myself a challenge for this year. During 2026 I will attempt to see, and importantly, correctly identify, 100 different species in Great Britain. I thought that a starter guide may be helpful for others wanting to learn about this colourful and vital group so will aim to blog regularly with hints, tips and reports from my efforts. I am starting in the depths of winter so this should give me time to set the scene, as it were, and carry on with preparations and research. So far this year we have had cold weather and I have not as yet seen a live adult hoverfly but there is plenty of preparation to be done. Over the next few weeks I will endeavour to cover the equipment, books and other resources that I have acquired over the last two years which have proved valuable. First though a couple of pictures from last...