‘ATALA FASCINATING': THE LIFECYCLE OF THE ATALA HAIRSTREAK ON ABACO


Atala Hairstreak Butterfly, Abaco 6

‘ATALA FASCINATING': THE LIFECYCLE OF THE ATALA  HAIRSTREAK ON ABACO

I have posted about several of the wonderful butterfly species the live on Abaco, but my favourite will always be the small but beautiful Atala Hairstreak Eumaeus atala. Its ‘look-at-me’ bright orange abdomen, black wings and the curious luminescent bright blue spots that even cover its legs and head are unmistakeable. These butterflies favour the coontie plant – especially for egg-laying – but they can be seen almost anywhere as far as I can see, though I have never seen one right by a beach. 

I’ve posted before about the lifecycle of the Atala, but I have never had a chance to show the complete post-egg process from caterpillar to triumphantly emergent butterfly actually recorded on Abaco until now. Thanks to Rhonda Pearce, her patience and her skill with a camera, the following sequence of photos shows in detail the various stages of metamorphosis.

THINGS TO LOOK OUT FOR

  • The little hairs on the caterpillars (larvae)
  • The dark gluey-looking shed skins
  • The delicate silky threads as the chrysalis forms
  • The butterfly emerges upside down, enabling it to uncrumple & spread its wings to dry

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RELATED POSTS

ATALA HAIRSTREAK LIFECYCLE (you’ll find more info about the process here)

FLUTTER BY, BUTTERFLY

ABACO’S LOVELIEST BUTTERFLY

ABACO BUTTERFLY PAGE (other species found on Abaco)

Photo Credits: All Rhonda Pearce except the header of a full adult imago, RH

PS Sorry, I’ve been very po-faced and not mentioned Halloween. Everyone else is covered in blood, guts and gore, so I reckon the market is saturated. Also I get the wrong end of the ‘Trick or Treat’ stick. I carefully prepare 2 lots of choccy-based sweets. One is delicious. The other contains chilli. If the callers are nice, they get the Treat. If not, they get the Trick. That must be right, surely. I can listen to them hawking and barfing as they run off into the night…. [No children were hurt in the making of this story…]

SWALLOWTAIL BUTTERFLIES ON ABACO


SWALLOWTAIL BUTTERFLIES ON ABACO

Uli Nowlan has had two beautiful swallowtail butterfly species in her garden at Treasure Cay. These are absolute stunners, with great camerawork to capture the details.

BAHAMA SWALLOWTAIL Papilio andraemonBahamas Swallowtail Butterfly, Abaco (Uli Nowlan)

TIGER SWALLOWTAIL Papilio glaucusSwallowtail Butterfly, Abaco (Uli Nowlan) Bahamas Swallowtail Butterfly, Abaco (Uli Nowlan)

DRYAS JULIA (JULIA HELICONIAN): BUTTERFLIES ON ABACO (4)


800px-Dryas_julia-02_(xndr)

DRYAS JULIA (JULIA HELICONIAN): BUTTERFLIES ON ABACO (4)

A fast-flying butterfly in a fetching shade of orange designed to be off-putting to avian predators. If the colour fails as a deterrent, these butterflies are unpleasant to eat (supposedly), so birds learn to leave them alone.

Dryas Julia Butterfly CS 1Dryas Julia Butterfly CS 2800px-Dryas_julia_2 800px-Dryas.julia 800px-Julia-heliconian-butterfly Dryas_julia_caterpillarCredits: Charlie Skinner & Wiki

OTHER BUTTERFLIES IN THIS SERIES

ZEBRA HELICONIANS

GULF FRITILLARY

COMMON BUCKEYE

BUTTERFLIES ON ABACO (3): COMMON BUCKEYE


220px-Buckeye_Butterfly_(Junonia_coenia)

BUTTERFLIES ON ABACO (3): COMMON BUCKEYE

At first glance the Common Buckeye Butterfly Junonia coenia looks unpromisingly drab. However, like many butterfly species, the outside appearance is only one side of the story, a facade to enable it to blend in with the scenery. As the header image suggests, this creature has a more more flamboyant and colourful side to it – a feature not confined to butterflies, and extending even to humans…

Charlie Skinner DSC_7818

As it feeds, or as the sun warms its wings, the buckeye will start to reveal itself DSC_7831DSC_7825DSC_7817 DSC_7823

The bright eye-spots of the buckeye, for which it is named, are designed to deter predators, as much as for decorative purposes. Birds, in particular, are thought to be put off by a creature apparently possessing 3 pairs of eyes.DSC_7829DSC_7822DSC_7830DSC_7832

The caterpillars and chrysalis of this species look like thisCommon_Buckeye_larva_variation,_Megan_McCarty42Common_Buckeye_chrysalis,_Megan_McCarty43

This rather charming illustration of the buckeye species is by Jacob Hübner from his Sammlung exotischer Schmetterlinge Vol. 2 ([1819] – [1827] (Plate32)442px-Hubner1821SammlExotSchmett2Plate32

Also in this series: ZEBRA HELICONIANS and GULF FRITILLARIES

Photo Credits: Butterflies by Charlie Skinner (except header, Wiki); Caterpillars & Chrysalis by Megan McCarty via Common Licence

BUTTERFLIES ON ABACO, BAHAMAS (2) GULF FRITILLARIES


BUTTERFLIES ON ABACO, BAHAMAS (2) GULF FRITILLARIES

The GULF FRITILLARY Agraulis vanillae is a so-called ‘longwing’ butterfly species found from South America to central North America, named for its migration route over the Gulf of Mexico.Gulf Fritillary Abaco CSK 7Gulf Fritillary Abaco CSK 2

The black and orange patterns of this butterfly are a reminder to predators of the toxicidity of its stripy caterpillar  and birds tend to leave them alone. Just in case. The markings are also similar to other butterflies that are poisonous – for example the Monarch.  Tip of the hat to Wiki for the information that “this species belongs to the ‘orange’ Batesian mimicry complex”. Me neither! It is where an innocuous species resembles a noxious one in order to discourage predators without going to the bother of actually developing its own ‘on-board’ toxins.

Gulf Fritillary Abaco CSK 4Gulf Fritillary Abaco CSK 3

File:Gulf Fritillary Life Cycle.svgGulf Fritillary Abaco CSK 1Gulf Fritillary Abaco CSK 5

The gulf fritillary is common on Abaco, as elsewhere in the Bahamas. I particularly fond of the photo below, in which the whole feeding apparatus can be seen. I haven’t done my homework, I’m afraid. If anyone wants to provide the technical terms (mouth? proboscis? tongue-thing?), that would be welcome. Please use the comment box to spread enlightenment.Gulf Fritillary Abaco CSK 6

FURTHER BUTTERFLIES YOU MAY ENJOY

ZEBRA HELICONIANS

ATALA HAIRSTREAKS and LIFECYCLE OF THE ATALA HAIRSTREAK

Credits: all amazing photos by Charlie Skinner, except header image Wiki – to which credit also for the graphic and some info in particular ‘Batesian Mimicry complex’, which is definitely one to drop lightly into conversation…

BUTTERFLIES ON ABACO, BAHAMAS (1) ZEBRA HELICONIANS


Zebra Heliconium Abaco CS 3

BUTTERFLIES ON ABACO, BAHAMAS (1) ZEBRA HELICONIANS

The Zebra Heliconian butterfly Heliconius charithonia is also know as the Zebra Longwing.  These striking butterflies roost nightly in large colonies, a species behaviour that is believed to be a protective measure against predation, providing safety in numbers (or at least reducing the probabilities that you will be the one to be eaten). In 1996 the Zebra Longwing was appointed the State Butterfly of Florida.

Zebra Heliconium Abaco CS 1Zebra Heliconium Abaco CS 2Zebra Heliconium Abaco CS 5Zebra Heliconium Abaco CS 4Zebra Heliconium Abaco CS 6Zebra Heliconium Abaco CS 7Credits: all images by Charles Skinner, taken in the vicinity of the Delphi Club, Abaco

FLUTTER BY, BUTTERFLY: ATALA ENCHANTING ON ABACO


Atala Hairstreak Butterfly, Abaco 7

FLUTTER BY, BUTTERFLY: ATALA ENCHANTING ON ABACO

It’s hard to resist another fly-past for the Atala Hairstreak Butterfly Eumaeus Atala . So I won’t. Once seen, never forgotten. They are small wonders, with their plump orange abdomens and their striking blue-dotted motif; obvious candidates for a signature Rolling Harbour logo for insect posts.

Atala Hairstreak Logo

Atala Hairstreak Butterfly, Abaco 1Atala Hairstreak Butterfly, Abaco 4Atala Hairstreak Butterfly, Abaco 2

This close-up in particular shows clearly that the vivid blue markings are not confined to the Atala’s wings. They are also on the body, the head, and surprisingly on the legs as well.Atala Hairstreak Butterfly, Abaco 6

It is rare to see the inside of an Atala’s wings. In flight they tend just to look black; then they land with precision and closed wings (zeugma score!). In sunshine the spots of the feeding Atala shine out like small LEDs. They very rarely open their wing to reveal the velvety blue upper sides.As I watched the single Atala, a second one arrived and almost immediately ‘jumped’ the first. By which I mean that, for a few seconds, the new arrival ‘covered’ the feeding Atala in every sense of the word. Please consider this a blurry study of the upper side of an Atala’s wings, and politely ignore the intrusive circumstances. This is not a scandal blog. Yet. Mere moments later, it was all over **. I made my excuses and left.Atala Hairstreak Butterfly, Abaco 3

These events may have piqued your interest in the life cycle of the Atala. Some months ago I posted in detail about this, with the whole process illustrated from eggs, larvae, caterpillar and chrysalis to the emergent butterfly. At the end of the post are some helpful links. CLICK LIFECYCLE OF THE ATALA HAIRSTREAK

Finally, you may want to get a sense of size for this butterfly – crops and zooms can sometimes give a distorted impression. So here is a normal snap of the butterfly feeding.Atala Hairstreak, Abaco 9

**My spam box is full of suggestions about this

Image credit for open-wing shot on flower: Stranica