NL. Deze blogpost in het Nederlands
31-05-2025 Ilperveld – Waterland, North-Holland – NL

Moth count
Two weeks ago we were able to participate for the first time in a Moth count led by Nico Dekker, Coordinator Butterfly Working Group (Vlinderwerkgroep) KNNV – Ilperveld, Landsmeer at Visitors Centre Landscape North Holland.
What a special experience!
Behind the visitors centre of the Ilperveld a white cloth measuring several metres was stretched, which was illuminated by a very strong, vibrating lamp. It was switched on as soon as it started to get dark, around 22:30, and immediately the first insects appeared: moths, but also beetles, flies, mosquitoes, and a lot of other small fry… Within no time there were hundreds of them. Quite a ticklish feeling!
Inventory and identification
A few people from the Butterfly Foundation and some other interested parties had quickly positioned themselves around the cloth, and took turns in an attempt to photograph and/or identify as many of these creepy crawlies as possible.


Nico had an insect book with him to identify the various species, and here and there we were shown some beautiful species and given names. Apart from that I was mainly dependent on taking photos – in the hope that they would be good enough to have them identified later via Observation.org.
Photographing insects in the dark
Taking photos in the dark turned out to be even more complicated than expected. Everything moved, flew, hopped, crawled and hopped around, in such large numbers that you didn’t know where to look first, let alone how and where to focus. In addition, the flickering lamp appeared to project red horizontal lines on the canvas, which were not visible to the naked eye, but were visible in the photos.
All photos were therefore significantly lightened in post-processing, sharpened and noise-free, and where possible the background was cleaned up a bit.
After sorting through hundreds of photos, and with a bit of luck and a lot of fiddling, you are moving from this :

To this:
Variation and biodiversity
It is unbelievable how many different species we saw that night! I was able to identify and name a total of 71 different species using Waarneming.nl. But there were many more. Beautiful creatures with often equally surprising and poetic names. The ‘top pieces’ of the evening for me were undoubtedly the Ermine Moth and the Rhinoceros Beetle. But certainly also some other gems that you can see below in my personal ‘top 10’. You can soon find a number of others on my website Photodeck Steppeland – Moth Count (work in progress…)
Would you like to participate yourself?
By participating in such a moth- or insect- count you will learn much more about the biodiversity and ecology of a certain area. That is certainly worth experiencing.
Want to know more? Check the agendas of some local or national nature working groups. Some interesting links:
https://www.vlinderstichting.nl/
https://www.landschapnoordholland.nl/
https://www.natuurmonumenten.nl/
My personal Top 10

















































