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Coen Krom @coenkrom.bsky.social · 9h

Migrant Aphideater (Eupeodes corollae) in the neighbourhood, last Monday. Terrasjeskommazweefvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 9h

NS No. 1001 on a freight train near Geldermalsen, 1948 or 1949. Photograph: NS

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Coen Krom @coenkrom.bsky.social · 07/10/2026

Common Drone Fly (Eristalis tenax) in the neighbourhood. Blinde bij. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 06/10/2026

Large Garden Cross Spider (Araneus diadematus) in my garden. Kruisspin.

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Coen Krom @coenkrom.bsky.social · 06/10/2026

Small Copper (Lycaena phlaeas) in the neighbourhood, last Friday. Kleine vuurvlinder. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 05/10/2026

Common Darter (Sympetrum striolatum) in the neighbourhood, yesterday. Bruinrode heidelibel. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 04/10/2026

Tiger Marsh Fly (Helophilus pendulus) in the neighbourhood, last Friday. Gewone pendelvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 03/10/2026

Lawyer’s Wig (Coprinus comatus) in the neighbourhood. Geschubde inktzwam. #Fungi

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Coen Krom @coenkrom.bsky.social · 03/10/2026

European Crane Fly (Tipula paludosa) in the neighbourhood. Weidelangpootmug. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 02/10/2026

Gresley W1 LNER No. 10000 on the London King’s Cross turntable in 1931. W1 No. 10000 (known as the ‘Hush-Hush’ due to its secrecy) was a one-off experimental steam locomotive fitted with a high pressure water-tube boiler.

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Coen Krom @coenkrom.bsky.social · 02/10/2026

At first, I thought I saw a bird... A huge Convolvulus Hawkmoth (Agrius convolvuli) in the neighbourhood. I have never seen an insect of this size before. Windepijlstaart. #ElkeDagEenInsect

Convolvulus Hawkmoth (Agrius convolvuli), Assendelft, September 28, 2026.

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Coen Krom @coenkrom.bsky.social · 01/10/2026

Lunar Underwing (Agrochola lunosa) in my garden. Maansikkeluil. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 30/09/2026

German Wasp (Vespula germanica) in my garden. Duitse wesp. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 29/09/2026

The ivy flowers in my garden attract many bees, wasps, hoverflies, and flies. Klimopbloemen. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 28/09/2026

Hr. Ms. Hertog Hendrik in the port of Den Helder, shortly before departing for the Dutch East Indies. The Netherlands, 1918.

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Coen Krom @coenkrom.bsky.social · 28/09/2026

Brick Cap (Hypholoma lateritium) at Park Vijversburg, Tytsjerk, Friesland/Fryslân, September 26. Rode zwavelkop. #Fungi

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Coen Krom @coenkrom.bsky.social · 28/09/2026

Flower Fly (Syrphus spec.) at the Dekemastate, Jelsum, Friesland/Fryslân, September 26. Bandzweefvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 27/09/2026

Fly Agaric (Amanita muscaria) at Park Vijversburg, Tytsjerk, Friesland/Fryslân, yesterday. Vliegenzwam. #Fungi

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Coen Krom @coenkrom.bsky.social · 27/09/2026

Hummingbird Hawk-moth (Macroglossum stellatarum) at the Dekemastate, Jelsum, Friesland/Fryslân. Kolibrievlinder. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 26/09/2026

Peacock Butterfly (Aglais io) in the neighbourhood, yesterday. Dagpauwoog. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 25/09/2026

A horde of wild mushrooms (Agaricus spec.) in the neighbourhood. Een horde wilde champignons.

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Coen Krom @coenkrom.bsky.social · 25/09/2026

Stanier Princess Coronation Class BR (ex-LMS) No. 46240 ‘City of Coventry’ on the Royal Scot express at Glasgow Central Station, late 1950s.

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Coen Krom @coenkrom.bsky.social · 25/09/2026

A secret rendezvous… Marmalade Hoverflies (Episyrphus balteatus) in the neighbourhood. Snorzweefvliegen. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 24/09/2026

Broad-banded Aphideater (Eupeodes latifasciatus) and probably a Sweat Bee (Lasioglossum spec.) in the neighbourhood, yesterday. Gele kommazweefvlieg en waarschijnlijk een groefbij. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 24/09/2026

Wat een uitstekende column van Tommy Wieringa.

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Coen Krom @coenkrom.bsky.social · 23/09/2026

Wall brown (Lasiommata megera) in the neighbourhood. Argusvlinder. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 22/09/2026

Broad-banded Aphideater (Eupeodes latifasciatus) in the neighbourhood, yesterday. Gele kommazweefvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 21/09/2026

Seed Bugs (Orsillus depressus) in my garden. Cypresbodemwantsen. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 20/09/2026

Common Earwig (Forficula auricularia-gr.) in my garden. Gewone oorworm. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 19/09/2026

Publius Quinctilius Varus in happier times.

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Coen Krom @coenkrom.bsky.social · 19/09/2026

Honey Bee (Apis mellifera) in my garden. Honingbij. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 19/09/2026

Amsterdam Central Station locomotive depot in 1932. Photograph: Willem van de Poll

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Coen Krom @coenkrom.bsky.social · 18/09/2026

Yellow-barred Pond Fly (Sericomyia silentis) in my garden. Gele veenzweefvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 18/09/2026

Express locomotive type Eb 3/5 SBB (ex-SCB) No. 5891, ca. 1902. Photograph: Georg Wilhelm Hecklau

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Coen Krom @coenkrom.bsky.social · 17/09/2026

Marmalade Hoverfly (Episyrphus balteatus) in the neighbourhood. Snorzweefvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 16/09/2026

“Just chilling.” European Paper Wasp (Polistes dominula) in the neighbourhood. Franse veldwesp. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 15/09/2026

Field Digger Wasp (Mellinus arvensis) with prey in my garden. Gewone vliegendoder met prooi. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 14/09/2026

Twin-spot Centurion (Sargus bipunctatus) in my garden. Herfstmetaalwapenvlieg. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 13/09/2026

Tiger Crane Fly (Nephrotoma scurra) in my garden. Bruine tijger. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 12/09/2026

Hanging out. Brown-lipped Snail (Cepaea nemoralis) in my garden. Zwartgerande tuinslak.

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Coen Krom @coenkrom.bsky.social · 12/09/2026

Mottled Shieldbug (Rhaphigaster nebulosa) on my window. Grauwe schildwants. #ElkeDagEenInsect

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Coen Krom @coenkrom.bsky.social · 11/09/2026

A NS Series 3700 (possibly No. 3731) leaving Amsterdam Central Station in 1933. Photograph: Willem van de Poll

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