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Dipterist, Entomologist, presenter, author, museum lover Principal Curator, Flies and fleas, Natural History Museum, London, UK
Erica McAlister









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I've been squeezing in some #urbanplant surveys & workshops around book promo events. Yesterday I was at the @nhm-london.bsky.social learning to id #flies with the inspirational @flygirlnhm.bsky.social. This little cutie is a Soldier Fly (Oxycera).
One of our more spectacular soldierflies, increasingly being seen at inland locations
Teneral Physocephala rufipes ♂ found today on flowerbed wall in Bengeo garden, fascinating then to watch it change to its full adult colour over next hour. P.rufipes is most wasp-like of conopid parasitoid flies. @flygirlnhm.bsky.social
Day 8, #30DaysWild. Jackdaw outside @theul.bsky.social.
Tree Snipefly (Chrysopilus laetus) new to Yorkshire at garden centre in Shiptonthorpe VC61 . Seen 11 days ago but no pot with me...thankfully still on same apple tree today! Maybe garden centres explain the spread north? @uk-soldierflies.bsky.social @dipteristsforum.bsky.social @ynuorg.bsky.social
Preparing for @bbcspringwatch.bsky.social tonight… At least the sun is beginning to shine…
Tomorrow night - it’s @cheltenhamfestival.bsky.social time The scrumptious @juleshoward.bsky.social & I will be discussing insects - what they’re getting up to & should we pay attention? (Yes obviously) Come join us in what will be a lively discussion www.cheltenhamfestivals.org/events/can-i...
Goniglossum wiedemanni mating pair on its host plant White Bryony (Bryonia dioica) today in Bengeo garden. Scarce picture-winged fly that is forever being hunted by its braconid parasitoid Utetes testaceus. @flygirlnhm.bsky.social
HAIL the Urban Nature Garden at the @nhm-london.bsky.social
First smart soldierflies are now on the wing in Lye Valley fen. First a female Common Green Colonel Oplodontha viridula, then a female Banded General Stratiomys potamida. Both sitting out a rain shower @friendlyevalley.bsky.social @uk-soldierflies.bsky.social @dipteristsforum.bsky.social
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Video
Erica McAlister
Erica McAlister
Erica McAlister
Amanda Tuke
Soldierflies and Allies Recording Scheme
Simon Knott
Simon Knott
Ian Andrews
Dr Jill Whitelock
Judy Webb
I wonder if any dipterists could help I believe that this is Stratiomys longicornis, but this species is supposedly from brackish waters This is in inland south Norfolk near a pond @dipteristsforum.bsky.social @uk-soldierflies.bsky.social @norfolknats.bsky.social #soldierfly #diptera
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Phil Wilkins