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Archive for June, 2018

2018-25

Today I want to share FIVE FUN FACTS about dragonflies 🙂 A beautiful Common darter lady (Sympetrum striolatum) kindly agreed to demonstrate the facts in my pictures!

FACT 1: They were the first insects to inhabit this planet – 300 million years ago! In other words: they’ve had a looong time to perfect the art of flying and hunting.

Pioneer

FACT 2: They’re flat out terrifying if you’re a mosquito or other kind small bug, because they don’t simply chase down their prey but they snag them from the air with a calculated aerial ambush! Dragonflies can judge the speed and trajectory of a prey target, and they’re so skilled they have an impressive 95% success rate when hunting.

Hunter

FACT3: They can fly in any direction, including sideways and backwards! (How cool is that!) Plus, they can hover in a single spot for a minute or more. But that’s not all. They’re also fast – some species reach almost 30 km/h (18 mph) – and one species (Globe skimmer) flies almost 18,000 km (11,000 miles) during migration which is the world’s longest insect migration. (Compare this with the famous Monarch butterfly migration of 2,500 miles.)

Wings

FACT 4: Both dragonflies and damselflies are in the order Odonata, which means “the toothed ones”. When hunting, they can catch the prey with their feet, tear off its wings with their sharp jaws (so the prey can’t escape) and scarf it down – all without needing to land. In short: Their ability to rip apart their prey takes their predatory prowess to another level.

Update: It should be noted that dragonflies don’t bite humans and they don’t have any stinger! i.e. they cause no harm to humans. (Thanks for pointing this out, Greta)

Jaws

They have nearly 360 degrees vision! The enormous compound eyes contain 30,000 facets and they can see the world in colors we can’t even imagine. (In depth read here)

Eyes

Update: It’s also worth mentioning that dragonflies have a significant, positive ecological impact. In its nymph stage, they eat harmful aquatic organisms and thus help keep our waters clean. The nymph can contribute to the ecosystem for up to five years before becoming a mature adult! As adults, they mainly help humans by eating mosquitoes and other insects that spread diseases such as malaria, yellow fever, anthrax, etc.


2018-24

Hi 🙂 Questions to fellow photographers: What’s your favorite thing to photograph, and what do you photograph most? My favorites are probably butterflies and moths, but what I photograph most (i.e. every day) are my cats and random street scenes.

Here are this week’s photos-

(i) My cat Tonje, photographed with Fujifilm X-T1 and 60 mm macro lens

Cat lovers, please follow us on Instagram! @nfc_tonje_magnor

(ii) A candid shot taken with my iPhone


2018-23

Some random pictures I’ve taken with the Pentacon 50 mm lens… Have a nice week everyone!

Helophilus pendulus literally means “dangling march-lover”

The Donacia clavipes has amazing colors!

HUGE eyes…. and a goatee!


2018-22

The Azure damselfly (Coenagrion puella) is quite common here in The Netherlands, and always a pleasure to see!

At first glance it could be a bit tricky to distinguish the Azure from a Common blue (Enallagma cyathigerum) damselfly, but if you look at the antehumeral stripe (that’s the long blue section on the thorax), the Azure’s blue stripe is narrower than the black stripe beneath it, and there’s an extra black line, a “spur” extending from the wing base towards the legs. The Common blue’s antehumreral stripe is broader than the black stripe beneath it and there’s no “spur” on the thorax.

Another thing to look at is the second segment of the males’ abdomen (just behind the thorax): both are blue but the Azure has a black U-shape and the common blue has a black mushroom-shaped mark.

And now I need your help! Please take a look at the second photo below, it’s not a great shot but I hope someone can help me identify this little damselfly.. I’m doubting if it’s either a Variable damselfly (Coenagrion pulchellum) or perhaps a female Azure in blue form. If you know which one it is, please leave a comment below!

Male Azure damselfly

Female Azure damselfly in blue form (?)