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AJCann

@ajcann.bsky.social
1.9K followers 487 following 2.3K posts

Gentleman Scientist, ancora imparo. Trustee of NatureSpot: www.naturespot.org LLPS Natural History Section: www.leicesterlitandphil.org.uk/Natu… #Arachnids #Bugs #Environment #Hemiptera #Hymenoptera #Leicester

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AJCann @ajcann.bsky.social · 7h
"multiple stressors"
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AJCann @ajcann.bsky.social · 7h
Stilpon spp. If anyone can get this to species, please let me know. #Diptera #VC55 #flies
Stilpon spp. Stilpon spp. Stilpon spp.
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London Natural History Society @lnhs.bsky.social · 27/09/2026
We have updated our website so now it's much easier to join the LNHS and easier for current members to update their details. More info on our website. And it's still only £20 to join!
lnhs.org.uk
London Natural History Society - Join
London Natural History Society - the place for wildlife in London
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BENHS @britentsoc.bsky.social · 27/09/2026
BENHS 2026 Indoor Invertebrate ID workshops . . . something for everyone
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Mr and Mrs Trellis @thenorfolkcoast.bsky.social · 26/09/2026
Leave the leaves! 🍂 🍁 Leaves are habitat that support pollinators and other invertebrates and provide them with the shelter they need to survive the winter... xerces.org/blog/leave-t...
xerces.org
Leave the Leaves!
One of the most valuable ways to support pollinators and other invertebrates is to provide them with the shelter they need to survive the winter. Thankfully, all you need to do is do less yard work.
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AJCann @ajcann.bsky.social · 26/09/2026
Fading Asters are still a magnet for Drone Flies. Eristalis arbustorum. #Diptera #VC55 #flies
Drone Fly, Eristalis arbustorum, on purple Aster flower.
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AJCann @ajcann.bsky.social · 25/09/2026
#wasps #Hymenoptera
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AJCann @ajcann.bsky.social · 25/09/2026
Spindle, Euonymus europaeus - a real Friday afternoon job, just using up what was left at the end of the week. #plants #botany #macro #photography
Spindle, Euonymus europaeus
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AJCann @ajcann.bsky.social · 25/09/2026
Voting time! Dog-rose, Rosa canina agg. - a pruning casualty. Vote for your favourite - 1, 2 or 3? #photography #Autumn #plants
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Cofnod Local Environmental Records Centre @cofnod.org.uk · 25/09/2026
Cofnod #RecordOfTheWeek is this Odiellus spinosus Harvestman by SueH. Easily recognised by its chunky body, short legs and distinct trident on the front margin of its head! Very much a lowland species. @britishspiders.bsky.social @megabunus.bsky.social
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VC40Ladybirds 🐞 @vc40ladybirds.bsky.social · 25/09/2026
Uploading the Dot Ladybird (Stethorus pusillus) with 7-spot Ladybird (Coccinella septempunctata) again, just because I like it!! 😆 From August in Shropshire #VC40Ladybirds #MicroLadybird
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AJCann @ajcann.bsky.social · 25/09/2026
Invertebrates in big trouble: www.buglife.org.uk/blog/governm... data.jncc.gov.uk/data/5226c2c... #Insects #Invertebrates #Entomology #Environment
A UK Government report highlights Britain’s overseas invertebrates are in great peril. A new report by the JNCC has highlighted just how precarious these special species are. Over three-quarters of all endemic invertebrates are classified as threatened, meaning that they are at a high risk of extinction. Across all endemic plant and animal types, the three species groups with the highest proportion of threatened species were invertebrates, with almost all crustaceans and nearly 9/10 arachnids and insects considered threatened. Despite the clear risk of extinction to so many of the UKOTs endemic invertebrates, they are still overlooked compared to better-known species like birds and reptiles. As a result, there is a desperate lack of data and scientific knowledge about these invertebrates, and very limited conservation action on the ground.
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AJCann @ajcann.bsky.social · 23/09/2026
Torymus bedeguaris male emerging from Diplolepis rosae (bedeguar) gall. Gall collected 18.09.2026, wasp emerged 23.09.2206. #Wasps #Hymenoptera #VC55
Torymus bedeguaris male emerging from Diplolepis rosae (bedeguar) gall. Leicestershire, UK.
Gall collected 18.09.2026, wasp emerged 23.09.2206.
Keyed with Graham MWR de Vere & Gijswijt MJ (1998) Revision of the european species of Torymus Dalman (s.lat.)s.lat) (Hymenoptera: Torymidae). Zoologische Verhandelingen, Leiden 317: 1-202.
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AJCann @ajcann.bsky.social · 22/09/2026
Ooctonus vulgatus. #Wasps #Hymenoptera #VC55 #Mymaridae Thanks Derek!
Ooctonus vulgatus femaleOoctonus vulgatus femaleOoctonus vulgatusOoctonus vulgatus
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AJCann @ajcann.bsky.social · 21/09/2026
It's #Lygaeidae Monday! Is that a thing? No? Oh well. #Bugs #Hemiptera #VC55
Scolopostethus affinisPeritrechus geniculatusPeritrechus nubilus
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AJCann @ajcann.bsky.social · 21/09/2026
Orionis coxator, only recently identified in the UK but seemingly becoming common (though hugely under recorded of course). #Wasps #Hymenoptera #VC55 #Braconidae
Braconid wasp Orionis coxator, head: Broad, G. R., & Stigenberg, J. (2021). The genus Orionis Shaw (Hymenoptera, Braconidae, Euphorinae) in the Old World. Journal of Hymenoptera Research, 88, 133-145.Braconid wasp Orionis coxator: Broad, G. R., & Stigenberg, J. (2021). The genus Orionis Shaw (Hymenoptera, Braconidae, Euphorinae) in the Old World. Journal of Hymenoptera Research, 88, 133-145.
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AJCann @ajcann.bsky.social · 20/09/2026
Cousin It. Sorry, Ruby Tiger, Phragmatobia fuliginosa. #VC55Moths #VC55 #moths
Ruby Tiger moth larva, Phragmatobia fuliginosa.
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AJCann @ajcann.bsky.social · 20/09/2026
Next month's #photography group project: #Shadows
finger shadows
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AJCann @ajcann.bsky.social · 18/09/2026
Best Bedeguar Gall I've ever found, now waiting for the tenants to emerge. This is going to be wasptastic. #Wasps #Hymenoptera #VC55
Bedeguar Gall/ Robin's Pincushion
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EcoRecord @ecorecord.bsky.social · 17/09/2026
Ivy is a fantastic late flowering plant for pollinators. If you look closely you might be lucky to spot an Ivy Bee! Ivy Bees are common in continental Europe, but they have only fairly recently made the hop across the channel to the UK.
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AJCann @ajcann.bsky.social · 16/09/2026
*The Little Things That Run the World* The importance of invertebrates & the urgent need for their conservation in the face of a global “Insect Apocalypse”. Wednesday 21st October 2026, 7.30pm, Knighton Parish Centre, Church Lane, Knighton, Leicester LE2 3WG, Admission £3.00 on the door.
The Little Things That Run the World 
The importance of invertebrates and the urgent need for their conservation in the face of a global “Insect Apocalypse”. 
Wednesday 21st October 2026, 7.30pm, Knighton Parish Centre, Church Lane, Knighton, Leicester LE2 3WG, Admission £3.00 on the door.
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AJCann @ajcann.bsky.social · 16/09/2026
Colpoclypeus florus. #Wasps #Hymenoptera #VC55 #Eulophidae
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Gilbert White @gilbertwhite.bsky.social · 16/09/2026
1777: Rooks frequent their nest-trees. Much Gossamer on the pastures and stubbles.
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AJCann @ajcann.bsky.social · 15/09/2026
Wordle 1,914 2/6 ⬛🟨🟩🟩🟨 🟩🟩🟩🟩🟩
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BENHS @britentsoc.bsky.social · 14/09/2026
BENHS – Dinton Pastures October 17 @ 10:30 am - 4:00 pm Tachinid fly identification workshop – Chris Raper and Matt Smith benhs.org.uk/events/ To book a place please mail, supplying a contact phone: indoormeetings@benhs.org.uk Image: Marc Taylor
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HoverflySpotterM.D @hoverflyspotter.bsky.social · 14/09/2026
🦟 Battle of the Heads 🐝 Do you know the difference between a hoverfly's head and a bee's head? 📖 Come and take a look and discover what really sets these incredible insects apart in my new article. #Hoverfly #Bee #Pollinators #InsectScience #Nature #Wildlife #Ecology #Mimicry
hoverflyspotter.substack.com
Head to Head - Comparing the anatomy of two pollinators.
The head of a hoverfly is not only vital, but a fascinating structure designed for several functions. Here I compare the head of a hoverfly with a bee to see how they differ.
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AJCann @ajcann.bsky.social · 14/09/2026
ourworldindata.org/is-organic-f...
ourworldindata.org
Is organic farming better for the environment than conventional farming?
Organic farming often wins when we compare impacts on one unit of land, but there is no clear winner when we look at impacts per unit of food production.
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AJCann @ajcann.bsky.social · 13/09/2026
Rosemary Beetle, Chrysolina americana, has finally reached my garden. #Beetles #Coleoptera #VC55
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AJCann @ajcann.bsky.social · 13/09/2026
Ectemnius cavifrons being very territorial, those huge eyes mainly on the lookout for conspecifics, which it chases away furiously. #Wasps #Hymenoptera #VC55 #Crabronidae #Video
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AJCann @ajcann.bsky.social · 12/09/2026
Hemiptarsenus fulvicollis. First record for #VC55 #Wasps #Hymenoptera #Eulophidae
Hemiptarsenus fulvicollis female, clava with only terminal segment whitish. 
Parasitoid of leaf-mining moths Elachistidae and Nepticulidae. 
Askew, R.R. (1968) Handbooks for the identification of British Insects, Hymenoptera: 2: Chalcidoidea Section (b). Royal Entomological Society.Hemiptarsenus fulvicollis female, clava with only terminal segment whitish. 
Parasitoid of leaf-mining moths Elachistidae and Nepticulidae. 
Askew, R.R. (1968) Handbooks for the identification of British Insects, Hymenoptera: 2: Chalcidoidea Section (b). Royal Entomological Society.
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AJCann @ajcann.bsky.social · 12/09/2026
Sycophila mellea. First record for #VC55 #Wasps #Hymenoptera #Eurytomidae
Sycophila mellea female. Endoparasite of gall-forming Tetramesa species. 

Claridge M.F. (1959) A contribution of the biology and taxonomy of the British Species of the genus Eudecatoma Ashmead (=Decatoma auctt. nec Spinola) (Hym., Eurytomidae). Transactions of the Society for British Entomology 13: 149‑168.
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Met Office - weather and climate @metoffice.gov.uk · 11/09/2026
Happy #CloudAppreciationDay! ☁️✨ Today is the perfect excuse to look up and admire the skies above us. From fluffy fair-weather cumulus clouds to towering, dramatic cumulonimbus, they do more than shape our weather. They spark curiosity, inspire creativity, and connect us to the natural world.
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AJCann @ajcann.bsky.social · 11/09/2026
Callitula pyrrhogaster, male (left) & female (right). #Wasps #Hymenoptera #VC55 #Pteromalidae
Callitula pyrrhogaster, male (left) & female (right).
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AJCann @ajcann.bsky.social · 11/09/2026
Wordle 1,910 2/6 🟨🟨🟨🟨🟨 🟩🟩🟩🟩🟩
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AJCann @ajcann.bsky.social · 09/09/2026
Fabulous #photography from one of the best #landscape photographers on Bluesky, @ pauljwillson.bsky.social #GoldenHour #sunset
pauljwillson.bsky.social
Paul Willson (@pauljwillson.bsky.social)
An obsession with moods and mountains x.com/pauljwillson instagram.com/pauljwillson https://www.facebook.com/profile.php?id=61571226489089
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AJCann @ajcann.bsky.social · 09/09/2026
Spaniopus dissimilis. First record for #VC55. Parasitoid targeting gall-making insects within the Diptera family Cecidomyiidae (gall midges). #Wasps #Hymenoptera #Pteromalidae
Spaniopus dissimilis femaleSpaniopus dissimilis femaleSpaniopus dissimilis
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AJCann @ajcann.bsky.social · 08/09/2026
Excellent long read: www.theguardian.com/news/ng-inte... #cognition #intelligence
theguardian.com
‘This is dangerous’: slime moulds and the bitter debate over the nature of intelligence
The long read: Scientists are battling over whether supposedly simple organisms should be considered ‘intelligent’. The outcome could reshape our understanding of the natural world – and our own place...
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AJCann @ajcann.bsky.social · 08/09/2026
shop.rnli.org
shop.rnli.org
RNLI Shop | Lifesaving Gifts
We have the perfect lifesaving gifts for you and your crew. Order them online at shop.RNLI.org and help us to save lives for another 200 years.
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AJCann @ajcann.bsky.social · 08/09/2026
Squatters I am absolutely rubbish at rearing insects but I'm trying to be a good Hymenopterist by rearing parasitoids out from their hosts: ajcarthropoda.blogspot.com/2026/09/squa... #Wasps #Hymenoptera #VC55 #Torymidae
Bedeguar Gall inquline Torymus rubi  female
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Abigail Lowe @abigaillowe.bsky.social · 08/09/2026
Have you been recording wildlife in your garden this year with iRecord? Sign up to the Big British Garden Survey to contribute to understanding how gardens support biodiversity across the UK. Registration closes soon, so hurry to get your garden on the map! tinyurl.com/25hme4b7 @ukceh.bsky.social
A pair of Five-spot Burnet Moths (Zygaena trifolii) resting on common knapweed.A meadow grasshopper (Chorthippus parallelus) displaying excellent camouflage against green leaves.Image of a person taking a photo of a moth with their mobile phone.
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Biological Recording Company @biologicalrecording.co.uk · 08/09/2026
Learn about the UK's bee-flies with @kitenet.bsky.social. Discover all 9 mainland UK species, their identification, ecology, behaviour, mimicry, life cycles, habitats & recording techniques 🌎 🧪 Ideal for naturalists, ecologists and recorders. 🔗 courses.biologicalrecording.co.uk/courses/bee-...
courses.biologicalrecording.co.uk
Bee-flies of the UK Online Course
Learn to identify the 9 UK bee-fly species with entomologist Dr Tony Madgwick. Explore bee-fly ecology, life cycles, mimicry, key ID features, and recording through Bee-fly Watch. Includes expert guid...
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AJCann @ajcann.bsky.social · 06/09/2026
LROS - The Goshawk Returns - Carl Baggott Friday 2nd October 2026 7:30pm St. Anne’s Church Hall, Letchworth Road, Leicester LE3 6FN
LROS - The Goshawk Returns - Carl Baggott
Friday 2nd October 2026 7:30pm
St. Anne’s Church Hall, Letchworth Road, Leicester LE3 6FN

Carl’s talk will cover the sudden arrival of the Goshawk in Charnwood and the first documented record of this species breeding in the county. Leicestershire is one of the least wooded counties in England, which has a significant bearing on the behaviour of these secretive forest dwellers. Unique behaviour was recorded during the 2026 breeding season and this will be discussed in full. As well as the Goshawks, there are a number of other scarce breeders using the same habitat that will be included in the talk.

Fascinated by birds from a very young age, Carl first joined LROS as a schoolboy. He is currently County Bird Recorder.
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Guardian Environment @environment.theguardian.com · 03/09/2026
Invasive tropical mosquito found breeding in east London
theguardian.com
Invasive tropical mosquito found breeding in east London
Climate crisis could increase incursions of Aedes aegypti, which can transmit Zika virus and dengue, experts say
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AJCann @ajcann.bsky.social · 04/09/2026
I do like a nice Aprostocetus, the largest genus in #Eulophidae with nearly 1,000 species described worldwide and over 100 UK species, but I can't identify them to species level. #Wasps #Hymenoptera #VC55
Aprostocetus spp.Aprostocetus spp.
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Royal Entomological Society @royentsoc.bsky.social · 03/09/2026
👀🪰 Ready for a closer look at one of nature's most extraordinary insects? Join us for the next #InsectHour with Prof. Andrew Pomiankowski where we'll explore the fascinating biology of stalk-eyed flies with insights into one of entomology's most remarkable evolutionary stories. buff.ly/FCGSuMS
buff.ly
Insect Hour - 16 October
🎟️ Free to attend – register now
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AJCann @ajcann.bsky.social · 04/09/2026
It's all about the clypeus. Ectemnius cavifrons (Golden-moustached Fly Fox) #Wasps #Hymenoptera #VC55 #Crabronidae
Ectemnius cavifrons clypeusEctemnius cavifrons wasp
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AJCann @ajcann.bsky.social · 03/09/2026
Tachina magnicornis (Broad-fronted Tachina) in very good numbers in #Leicester. They love the Asters. #Diptera #VC55
Tachina magnicornis (Broad-fronted Tachina)
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UK Centre for Ecology & Hydrology (UKCEH) @ukceh.bsky.social · 03/09/2026
The Limiting Overshoot report identifies an ‘overshoot, peak, and decline’ pathway as the best way to minimise overshoot and return below 1.5°C as soon as possible. At the same time, adaptation actions are needed that reduce vulnerability to climate change impacts. www.unep.org/news-and-sto...
unep.org
Overshoot explained: 5 things to understand about a world beyond 1.5°C
Exceeding 1.5°C must not mean abandoning the goal. UNEP explains five things to know about climate overshoot and the choices that will shape what happens next.
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Biological Recording Company @biologicalrecording.co.uk · 03/09/2026
Learn to identify the UK’s 33 soil-dwelling earthworm species using microscopes, specimens and an ID key. Ideal for students, soil ecologists, biological recorders & naturalists 🌎 🧪 29 Oct | Natural History Museum, London | From £50 Register here: 🔗 www.eventbrite.co.uk/e/1989370476...
eventbrite.co.uk
Earthworm Identification
Learn how to identify British earthworm species based on morphological features, using a microscope and ID guide, with Keiron Brown.
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Gilbert White @gilbertwhite.bsky.social · 02/09/2026
1777: Swallows still bring out their young. Much wheat ricked.
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