Namadgi Damselflies

While out at Namadgi surveying moths, as described in the previous post, I took some photographs of damselflies that were hawking up and down a stream side. I could not identify them at the time, but I wanted to collect some site records for the local recorder, Harvey Perkins. He subsequently and kindly identified them for me. See his posts on dragonflies and damselflies at https://www.facebook.com/HarveyPerkinsACT/.

When I went down to the stream by the campsite at dawn, the damselflies were all hanging from grass and sedge stems over the water, still coated with dew, shining in the rising sun. But the water evaporated quickly and the insects soon warmed up. All I do here, is share those brief magic moments.

Four damselflies hang in their overnight roosts on grass stems overhanging a stream. Soon they were dry, warm and off hunting, mating and laying eggs.

Metallic Ringtail Austrolestes cingulatus, male

Metallic Ringtail, male.

Bronze Needle Synlestes weyersii tillyardi, male.

Common Bluetail Ischnura heterostica, male.

Common Bluetail, female.

Bronze Needle, male.

Bronze Needle, female.

Metallic Ringtail, male.

Metallic Ringtail, female.

February moth survey

Sandava scitisignata 

The February moth survey in the ACT was held in the forested hills of Namadgi in the south of the territory about 65 km from the Black Mountain survey site and the centre of Canberra city. Once again, I am indebted to Suzi Bond for organising the weekend-long trip and to Glenn Cocking and Ted Edwards for identifying all the moths I photographed.

The moths were attracted to a light and lured to land on a nearby sheet of white fabric spread vertically next to the lamps. And some would land on nearby trees, where I took most of these photographs. This was all in forest without another light to be seen other than the stars above. The night was still and quiet apart from the background clicking of insects. Night-time in the bush, great.

The following are just a sample of the many moth species we found, and I have chosen this set for the individual features described. They are not in any taxonomic or rarity order.



Entometa sp. I like the broad and colourful antennae this moth has, and its 'furry trousers'.

Euproctis baliolalis is another furry species, seen here blending in well with the hairy lichens on a tree stem.

A specimen of Abantiades latipennis hangs from the same tree as the moth above. Its body is pink, but always hidden by folded wings when landed.

A bi-coloured beauty, shy to show its face Acyphas semiochraea. 

Not all moths landed on the sheet or trees. This one preferred to land on the nearby ground, still in the lamplight, but in enough shadow to be easily missed and trod upon. Well it is rather well camouflaged as a fallen leaf, Monoctenis ballerina. 

Many of the species we trapped had furry bodies. The fur is of course modified scales as moths do not have hair. It can be cold in the hills, especially at night in summer or any time of day or night outwith. So, these furry coats would help keep the frost off the moths delicate bodies. This Lomera boisduvalii has a furry collar to its coat. 

I never knew what to expect to appear next under the lamps, the variety of shapes and colours seemed endless. Phaeophlebosia furcifera.

What a tiger, Tigrioides alterna. Think small, look close, whenever you go out at night. 

Tailed Emperor emerged

The first of the Tailed Emperor butterflies emerged from its chrysalis today. When I checked on them at 1130 in the morning, this one, the first to set, had begun to show the adult butterfly colour beneath the case. The 'fur' of the thorax and abdomen and the wings spots can be clearly seen. I had been checking them every day and this one had turned straw-yellow yesterday.

I went to set up the time-lapse camera, only to find that it had not been emptied and re-charged so I had to do all that. Meanwhile, by the time that was done, about one-o-clock, the butterfly had just fully emerged. So it had taken less than an hour and a half to emerge. I had thought I still had time to set up, oops. I will be ready for the next one.

About twenty minutes later the butterfly turned around and continued to stretch.

To think that this marvelous, delicate form of life had been squashed into that tight case for the past 19 days. And it had been in a much more simple form of a caterpillar before that.

What a chance to see immaculate insect wing-scales. Not a single one missing or torn.

I think this butterfly was a female as it had an almost-all-white body and its tail was broad-ended. Here she extends her proboscis for the first time, stretching it through the leaves.

Then, this is her retracting his proboscis drawing in a tiny drop of water from the leaf surface. Her very first drink.

An emperor's tail - absolutely perfect.

A few minutes later, she was warmed up and flew off over the garden.

Gone.

January Moths on Black Mountain


This is a post to continue my partial coverage of the moths surveyed at Black Mountain. It is only a sample of the moths attracted to the lights set last week by Glenn (see previous monthly posts for details and comparisons). The little beauty above, was the first one I saw this time. It is a Pink Arhodia Arhodia lasiocamparia.


In profile, its colouring fitted well, striking, against the black night behind.


Yet on a substrate of peeling bark, its colouring did not seem so bold and in daylight would be difficult to spot. The caterpillars feed on gum eucalyptus leaves, of which Black Mountain has 800 ha, so they must be well fed. Wingspan 6-7 cm.



This was my favourite of the evening as I am always fascinated by how well animals can conceal themselves by shape, colour and posture against their background habitat's colour and form. In this case, leaf and bark litter on the forest floor. This is Antictena punctunculus.


Even the frayed hind edges of its wings blend in with the broken edges of the fallen leaves.
Wingspan 4 cm.


Not all the moths were attracted to land on the white illuminated sheet, many landed on nearby trees, especially the smooth-barked gums, like this specimen of a Cleora sp. This is a species of looper, so named because the caterpillars loop their body into a high arch when crawling. Wingspan 5 cm.


Then there was this late contender for favouritism, an Epicoma sp., possibly the male of the species below, Epicoma contristis. 


This was the Epicoma contristis female, she is silver while the males are darker, hence the reason why I think the former sample might be a male of this species. The caterpillars of this species are of the classic dark grey, bristling, hairy type. Wingspan 3cm.


The Epicoma have fantastic head 'hair' it completely covers their face. I don't know the purpose for this hair, and everything in nature has a purpose - thermoregulation in the cool Canberra nights? It is just so illuminating to discover what lives in the woods and how variable moths are in colour and form.

Another wonderful night on the mountain.

Frogmouth Fledglings

two weeks and two months out of their nests



This pair of frogmouth fledglings have been out of their nest for two weeks, so as they were in the nest for four weeks, they are now six weeks old.

It is now January and most of the young frogmouths have left their nests, all those in my study areas have. When they do so, they become more obvious to people out walking and I am frequently asked how I can tell the age of the fledglings. So, here is a brief guide to the telling young and old frogmouths apart, using birds of known age.


This is the same pair seen in their family group. Mum is up top and dad is next to the chicks on the far right. He is slightly larger than the adult female and she has red on her wing coverts. Although the fledglings are well feathered, they are still only about half the adult size and weight.


The chick on the left is probably a male because it has grey coverts on its wings, the other one, in the middle, is probably a female as it has red/pink colouring on its coverts. Both can fly quite easily between trees as their wing and tail feathers are well developed, although their tails are not fully grown. Both chicks still have much fluffy down feathers around their heads and bellies, this is probably the best indicator that they are still young birds. The adults' body feathers lie smoothly against their bodies, except one stray feather on the male's upper wing which it is in the process of moulting out.


In a neighbouring territory, the fledglings have now been out of their nest for two months (so they are three months old) and they look much more like adult birds. In the above photo, the bird in the fore is a fledgling, that behind is its father. The bulges of stray downy feathers on the young bird's flanks catch the light as they stick up from the body. Those on the adult male lie flat and the under-tail coverts are longer and well streaked.


As most people view frogmouths from below, it is perhaps best to focus on what can be seen from below to guide aging these birds. And tails are the most obvious feature from that angle. The adult's tail on the left is long and smoothly edged. The youngster's tail on the right is shorter and ragged. The individual feathers are smooth, but they are of different lengths as they grow. When scrutinised, the young birds tail feathers look very smooth-tipped, the adult's tail fathers are usually frayed and chipped with wear as the bird has had most of them for a year or more. They will have pairs of fresher feathers within the mix as new ones are grown in replacement of those moulted out, but it is difficult to see that detail in the field.

In another month, they will be almost indistinguishable, but there are ways to tell.