Common Eggfly Butterfly

Common Eggfly butterfly
Common Eggfly Butterfly – 20th March, 2011.

Common Eggfly Butterfly

This was a rare treat! I’ve only ever seen these in Butterflyhouses, books or web sites. It was delightful to see one attracted to the buddleia down under the eucalypts on our own property.

The iridescent blue patches on the wings are only visible from certain angles, and can be difficult to photograph. This is a male Common Eggfly. A rather drab name for a very striking and uncommon butterfly.

 


Common Eggfly butterfly
Common Eggfly butterfly. The blue-purple irridescent patches on the wings can only be seen from certain angles and can be challenging to photograph.
Common Eggfly butterfly
Common Eggfly butterfly. From this angle the brilliant blue patches seem to disappear. Compare this to the first image to the left.
Common Eggfly butterfly
Common Eggfly butterfly on a eucalypt branch. The outer wings are strikingly marked but give no hint of the brilliance inside.
Common Eggfly butterfly
Common Eggfly butterfly. From this angle more irridescent colours can be seen on the inner corner of the right hind wing (click to enlarge).
Common Eggfly butterfly
Common Eggfly butterfly basking in the warmth of last evening sunlight.

The Spider that ran …

Putting my boots on after lunch I noticed what looked like a squashed spider on the floor. Figuring it must have been under my boots, I nudged it towards the door, whereupon it grew 7 legs and scurried like crazy across the floor. Being polished porcelain tiles the spider didn’t make much ground, so I nudged it a bit more with the toe of my boot till it was outside.
It was the craziest spider I’d seen in a long time. If anyone knows what this “walking smudge” actually is, let me know eh?

A flat bodied spider
A flat bodied spider?

Dainty Swallowtail

The Dainty or Dingy Swallowtail – Papilio anactus – is the most common and numerous swallowtail in this area. Anyone from Wagga to Albury and probably beyond who grow any citrus will find this butterfly and it’s caterpillars in their trees. The caterpillars can become so numerous they can totally strip a small citrus of all it’s leaves.

The Dainty or Dingy Swallowtail
The Dainty or Dingy Swallowtail
Hunting for suitable egg laying sites
Hunting for suitable egg laying sites
Always ready to fly away at the first sign of danger
Always ready to fly away at the first sign of danger

The butterfly is quite striking, with it’s black and white markings and red and blue spots on the margin of both hind wings. It is a very restless flyer when feeding and searching for egg laying sites, and is constantly flitting from one spot to the next.

Dainty Swallowtail egg on new grapefruit growth.
Dainty Swallowtail egg on new grapefruit growth.

The eggs are laid on the fresh new growth of citrus – small, single lemon-yellow and round. The eggs hatch into ravenous black and orange caterpillars. The markings change as the caterpillar matures. When disturbed, they can arch up and extend a flexible, orange coloured forked gland called an osmeterium which can squirt a fluid with a mildly offensive odour of rotting citrus.

Young Dainty Swallowtail caterpillar.
Young Dainty Swallowtail caterpillar.
A disturbed caterpillar displaying it's osmeterium.
Disturbed caterpillar showing osmeterium.
Mature caterpillars on a lemon tree.
Mature caterpillars on a lemon tree.

 

Although the caterpillars are quite conspicuous, their chrysalis stage is so well camouflaged they are easy to miss. The caterpillars pupate in the trees upon which they have fed, matching the colour and markings on the chrysalis to blend in to the anchoring branch. I have seen them in various shades from green to brown and an exact match to the surrounding citrus branches.

Dainty Swallowtail chrysalis on a Hand of Budda citrus.
Dainty Swallowtail chrysalis on a Hand of Buddha citrus.
Same chrysalis fro a different angle, blending in.
Same chrysalis from a different angle, blending in.
Chrysalis from above - note the silk anchor threads.
Chrysalis from above - note the silk anchor threads.

 

More information on the Dainty or Dingy Swallowtail can be found at http://lepidoptera.butterflyhouse.com.au/papi/anactus.html