Dragonfly and dewdrops video

This 18 May 2018 video shows a four-spotted chaser dragonfly and dewdrops in Overijssel province in the Netherlands.

Fred Christoffels made this video.


Dragonfly eats fly, video

This 17 April 2018 video shows a hairy dragonfly eating a fly in Meijendel nature reserve in the Netherlands.

Luuk Punt made this video.

Dutch dragonfly reserve

This 2018 video is about Wyldemerk nature reserve in the Netherlands and the dragonflies and damselflies which live there.

In the 1960s there was quarrying in a sandy area in Friesland province in the Netherlands. This led to lakelets. Fish which eat dragonfly larvae didn’t live there, so this water was excellent for dragonfly reproduction.

In 2007, the area became dragonfly reserve de Wyldemerk.

About 35 dragonfly and damselfly species live there. Including rare species like hairy dragonfly and large white-faced darter.

Experts have created a new form of highly-efficient, low-cost, sustainable insulation based on the wings of a dragonfly: here.

Beautiful dragonflies at old swimming pool

This video says about itself:

18 October 2013

Southern Hawker [aka blue hawker] Dragonfly, video footage of male and female of the species, filmed in the New Forest and East Dorset (United Kingdom).

Near Santpoort town in the coastal sand dunes region in the Netherlands, there used to be a hospital. A swimming pool for the patients was built.

In 1986, the hospital closed down. The area became a nature reserve. Various wildlife species started to use the swimming pool. Prominent among them, blue hawker dragonflies.

There is a report by Sjek Venhuis on blue hawkers at that pool in 2013-2017 on the Internet. In summer, adults of this beautiful insect species come there to mate. Females deposit their eggs on the banks of the old swimming pool. In winter, dragonfly larvae crawl on the bottom.

The old pool is now one of the most important blue hawker spots in the Netherlands. In 2017, at least 200 females deposited eggs there.

Important dragonfly art rediscovered

Norfolk hawker dragonfly, KBIN, Brussels

This picture shows a Norfolk hawker dragonfly. It is part of a recently rediscovered collection of 19th century dragonfly and damselfly art.

Translated from Dutch Vroege Vogels radio:

Dragonflies on watercolors

Friday, December 1, 2017

At the end of the nineteenth century, the Belgian Baron Edmond de Sélys Longchamps drew and painted many hundreds of dragonflies. Not for fun, but for science.

An important and valuable collection. Still, the folders with dragonfly aquarelles fell into oblivion. But in 2002 they were found again, almost literally under a layer of dust in a cabinet at the Royal Belgian Institute of Natural Sciences in Brussels.

Since then the Dutch dragonfly researchers Karin Verspui and Marcel Wasscher have studied the drawings. ‘We are talking about a time when there was obviously no good photography yet. This kind of drawings and watercolors were the gold standard for describing species”, says Verspui. ‘There are very special examples, including many so-called holotype specimens. These are the original individuals used to describe a new species. Where most of the type specimens themselves have completely lost their color, these watercolors are still of exceptional quality. These drawings deserve a larger audience”, says Verspui.

The digitized watercolors can be found on the RBINS site.

Ms Verspui said today on radio that Baron Edmond de Sélys Longchamps was an amateur entomologist. Nevertheless, he wrote scientific descriptions of about 700 dragonfly and damselfly species; about a third of the 2000 species known to science then.

Dragonfly eats scale insect, video

This September 2017 video shows a male brown hawker dragonfly eating a scale insect.

Hennie Tholen made this video in a backyard in the Netherlands.