Dragonfly mimic

No, it looks like a dragonfly with that long thick abdomen and large wings, but it's a mimic, an Owlfly

Whenever I go out to look for one thing; plant, animal etc, I usually find something else that intrigues me, and while out on my recent dragonfly hunts I found this wonderful creature. It is an Owlfly a neuroptera species, classified in the Ascalaphidae family. What a marvellous dragonfly mimic. I went chasing through the grass after it, believing it was a dragonfly, and although I did think the habitat was a bit dry and dense for a dragonfly I continued my pursuit. Then when it rested on a grass stem I immediately saw I was being fooled. Dragonflies do not have such crazily long antennae.

Seen from above, those antennae are so, so long and club-ended - capitate antennae,
and the abdomen looks even more dragonfly-like

I walked around the owlfly, taking shots without disturbing it, and I could not think of any insect with that body shape and body-length antennae. So I sent off some photographs to Harvey Perkins, my insect guru, and he immediately replied with its identity and congratulated me on my good find.

The posture is dragonfly-like and I was fooled until I noticed the antennae

Apart from the antennae, the Owfly's mimicry is excellent. There are wing-spots, large eyes, and the patterned abdomen, all just like those on a dragonfly.

A Tau Emerald dragonfly Hemicordata tau hangs resting - note the wing-spots and large eyes

The dragonfly above and damselfly below both have tiny setaceous antennae (bristle-like) and the owlfly seemed to hold its wings in a position part-way between how the two odonata hold their wings.

So why do Owlflies mimic dragonflies, perhaps because dragonflies are aggressive predators, and so any smaller predators might not approach the owlflies if they see them as possible dragonflies. Hence, the owlflies escape predation. But would a dragonfly attack an Owlfly I wonder.....

A Wandering Ringtail damselfly Austrolestes leda  rests on a reed stem
 - note the tiny setaceous (bristle-like) antennae, the thin lines arching up from inside the blue of the eyes  

Odonata

Royal Tigertail Parasynthemis regina 

January has been hot and good for insects. Butterflies and grasshoppers are fluttering and hopping all over the place. And there are lots of dragonflies and damselflies about too. So, I have been educating myself by trying to identify some of the local species around Canberra. I can recognise about fifteen species so far, but I am very much indebted to Harvey Perkins for most of the initial identification of each species. He knows over fifty species in the region, and more nationwide, and more worldwide.

Royal Tigertail Parasynthemis regina 

I just love the way they tuck up their legs when flying, they look so cool.

Australian Emperor Anax papuensis

I have been taking photographs to grab shots of each species, for that is the only way I can look at the details of their colouring to identify them. That is OK when they are perched, although that is not as easy as it seems, but when they are flying I have to use the camera at high speed. There has to be enough light to allow shots to be taken at 1/8000 sec or more to freeze them in flight. I do not like using flash on wildlife. I don't like the effect and I don't like to stress animals.

Australian Emperor Anax papuensis

The ponds are busy with patrolling dragonflies and damselflies, and the females are busy laying eggs. This species lays its eggs deep in the water.

Black-faced Percher Diplacodes melanopsis female

They have very good eyesight, so careful watching of their behaviour and slow movement are required to stalk and photograph these quick flying insects.

Wandering Percher Diplacodes bipunctata male

Many of the dragonflies have been flying for a few weeks now, and some individuals are showing wear and tear. They only have the wings they emerge with, they do not regrow or fix themselves.

Tau Emerald Hemicordulia tau

When not hunting or patrolling for mates, they can be surprisingly secretive and difficult to see, often hiding under bushes.

Common Flatwing Austroargiolestes icteromelas

There are so many colours and forms, wonderful creatures.

Eastern Billabongfly Austroargrion watsoni

Bright blue on a bubble-mat of algae

Blue-spotted Hawker Adversaechna brevistyla

But above all, they are quick, very very quick.