Butterflies and dragonflies of Rottumerplaat island


This video from Britain is called Grayling Butterflies, Hipparchia semele.

Jasper Zoeter, Martijn Bunskoek and Tim van Nus, wardens of desert island Rottumerplaat in the Netherlands, report about butterflies and dragonflies.

This summer, graylings are the most common butterflies: hundreds were seen.

Other Rottumerplaat butterflies this year: meadow brown; small copper; small heath; comma; Essex skipper; common blue.

About dragonflies, they write:

Not only for birds the water tank below the tower is useful. For dragonflies it is interesting, because between 1 and 11 July here almost daily ruddy darters metamorphosed from larva to adult. Based on the number of counted and collected larva skins at least 48 individuals emerged from the shallow water. Special, they all came from such a small pond! Reproduction of dragonflies on Rottumerplaat is known from only a few species. On 5 and 6 July, a strong southerly winds brought large numbers of dragonflies to the island. This were mainly various types of darters, including the nationally rare yellow-winged darter, of which one female was observed. We have also seen an emperor dragonfly a few times.

Four-spotted chaser dragonfly video


This video is about a four-spotted chaser dragonfly.

Jan Gorel in the Netherlands made the video.

Dragonflies and pine marten on Rottumerplaat island


This video is called Scarce Blue-tailed Damselfly (Ischnura pumilio).

On Rottumerplaat, the Dutch desert island, there are not only birds.

Wardens Martijn Bunskoek and Tim van Nus report about dragonflies and damselflies on the island as well.

They saw a scarce blue-tailed damselfly. The first time ever for this species on Rottumerplaat. The wardens suspect that the water of the lakelet where they found this insect is too brackish for reproduction.

Also, this year there was a variable damselfly; for the first time since 1995 on the island.

Other damselfly and dragonfly species on Rottumerplaat: four-spotted chaser; red-veined darter; emperor dragonfly; and southern emerald damselfly.

On 26 May 2014, wardens found a pine marten carcass on the beach of Rottumerplaat. Probably, the marten was from Lauwersoog where this species lives, and sea currents brought it to the island. Probably, the same happened to three dead hares and a dead lamb, found on Rottumerplaat.

Texel island damselflies and dragonflies


This video shows damselflies in high magnification. The species are blue-tailed damselfly and azure damselfly.

According to a blog post by warden Erik van der Spek on Texel island in the Netherlands, the most common Texel damselfly species are: blue-tailed damselfly, common blue damselfly, and emerald damselfly.

As for dragonflies, the most numerous species on Texel are: emperor dragonfly, black-tailed skimmer, migrant hawker, four-spotted chaser, and various Sympetrum species/

Rare dragonfly in the Netherlands


This is a video about a large white-faced darter dragonfly in Weerribben nature reserve in the Netherlands.

This spring, researchers found out for the first time that this rare species reproduces in Castricum; in the water of the local ice rink (which only works as an ice rink when it freezes).

Texel island dragonflies: here.

Dutch dragonfly and butterfly news


This is a green-eyed hawker video from Germany.

In 2012, there has been intensive research about butterflies and dragonflies in the Alblasserwaard region in the Netherlands.

25 butterfly species, and 35 dragonfly and damselfly species were found.

Among the dragonfly species is the green-eyed hawker; it expanded its range recently, which may be a good sign of improving water quality.

Other dragonfly species which are doing well are hairy dragonfly and scarce chaser.

Dutch dragonflies and damselflies in November: here.

November 2013. The flight season timing of a wide variety of butterflies is responsive to temperature and could be altered by climate change, according to a new study from the University of British Columbia (UBC) that leverages more than a century’s worth of museum and weather records: here.

Willow emerald damselfly video


This is a video about willow emerald damselflies.

They mate. Then, the female deposits eggs inside a tree’s branch.

Henk Dikkema from the Netherlands made this video.

Dragonfly depositing eggs, video


This video is about a female southern hawker dragonfly depositing eggs in the Netherlands.

The video is by Jeu Gielen.

Dragonflies and other insects


6 September 2013. Near the Losdorp garden, many dragonflies flying, and, sometimes, sitting down, on the hedge or on the reedbed along the ditch.

Are they common darters? Closely related, extremely similar species?  A mix of closely related species?

Small heath, Losdorp, 6 September 2013

Then, a small heath butterfly on the path.

Cranefly, Losdorp, 6 September 2013

In the hedge along the cemetery, many craneflies. Maybe the species Tipula paludosa?

Dragonfly on tombstone, Losdorp, 6 September 2013

Dragonflies here often sit down on tombstones. This one looks like a young male of a Sympetrum species. Common darter?

Hoverfly on flower, Losdorp, 7 September 2013

Along the path outside the cemetery, hoverflies and bees visit thistle and other flowers.

Small white butterfly, Losdorp, 6 September 2013

Small white butterflies as well.

Small tortoiseshell, Losdorp, 6 August 2013

A small tortoiseshell butterfly on a field. Later, another one on the road.

Dragonfly and butterflies in the garden


Male common darter

Today, a dragonfly sat for minutes on the almost gone flowers in the Losdorp garden.

It was a red male of one of the smaller species.

I would say: male common darter. Though this is a species very similar to other, related, species.

Also in the garden: two green-veined white butterflies.