Skip to content

A lovely chocolate and yellow butterfly!

Chocolate albatross (Appias lyncida) male. Chiang Dao Thailand. Photograph by Raymond JC Cannon

The Chocolate albatross (Appias lyncida) is a fairly common butterfly in Asia, which can be found from Sri Lanka to Borneo. There are a number of different subspecies across this vast range. I was very pleased – I am always happy to see a butterfly! – to come across this fine specimen in northern Thailand (Chiang Dao) where it was nectaring in some flower beds.

Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon

This individual was a male, and is, I think, Appias lyncida vasava, on account of having a rather thick brown band on the hindwing (uds), but I am not 100% sure! Yellow is often a warning (or aposematic) colour, but these particular butterflies are not poisonous.

Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon

This butterfly is rather variable in appearance. First of all the sexes look quite different; and then there are quite different forms at different times of the year: wet and dry season forms (together with some intermediate forms if that is not variable enough!). The forewings of the females are darker, particularly on the dorsal (upperside), as my not very good photograph (below) illustrates.

Chocolate Albatross (Appias lyncida)  dry season female. Thailand. Photograph by Raymond JC Cannon.

In the so-called, Wet season, the differences between the sexes becomes more pronounced, with the female being much darker: heavily marked with brownish-black markings on the dorsal surface (below, right hand side). These days, there are, I think (at least people tell me), less clear-cut differences between the seasons in countries like Thailand. Nevertheless, the wet season forms were beautifully illustrated by an British artist called John Nugent Fitch (below) in a book on the butterflies of India, by Frederic Moore, published in 1903-05. The darker markings on the wet season forms are thought to be to enable the butterflies to absorb more solar radiation, and thus heat up more quickly in inclement conditions!



Appias hippoides (=lyncida) from Frederic C. Moore (1903-05), Lepidoptera Indica. Plate 540, Vol. 6. Males on left, females on right. Top: Wet season brood. Bottom: Intermediate Wet Season brood.

There is also a lovely photograph, on the Wikipedia entry for Appias lyncida, of a pair of Chocolate albatrosses (below).

Chocolate albatross (Appias lyncida) pair. Balakrishnan Valappil [CC BY-SA 2.0 (
It is thought that the wet season forms of Appias lyncida, which have darkened wings, may be mimics of aposomatic Delias species, which are poisonous, or at least unpalatable (Canfield & Pierce, 2010). The wet season female Chocolate albatrosses are said to bear a significant resemblance to some darker (ups) species of Delias such as D. pasithoe (see below), and certainly their ranges overlap (Canfield & Pierce, 2010).

The Redbase Jezebel (Delias pasithoe) upperside. Hectonichus [CC BY-SA 3.0 (
Whether these darker female forms of the Chocolate albatross really are part of a mimicry ring – i.e. gaining protection from predation by looking like very similar, poisonous species – remains to be definitely proven, but it is an interesting idea. The theory is that female butterflies are the ones that most need this mimicry protection. They may carry carry heavy loads of eggs, which could impair their ability to escape when attacked by birds and other predators; so natural selection will favour the ones which look like species the predators have already learned to avoid! Males on the other hand, are I suppose, more expendable! Their bright colours are probably more to do with attracting the ladies, than frightening off predators!

Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon

Quite why we find brightly coloured creatures like this, so attractive, is another, deeper, question; but let’s leave theorizing aside for now, and I hope readers will just enjoy the spectacle in the following images!

Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon
Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon
Chocolate albatross (Appias lyncida) male. Chiang Dao, Thailand. Photograph by Raymond JC Cannon


Canfield, M. R., & Pierce, N. E. (2010). Facultative mimicry? The evolutionary significance of seasonal forms in several Indo-Australian butterflies in the family Pieridae. Tropical Lepidoptera Research, 20(1), 1-7.

Moore, Frederic C. (1903-05). Lepidoptera Indica. Volume 6, Plate 540. Lovell Reeve & Co, publishers

My soon to be published book!

rcannon992 View All

I am an entomologist with a background in quarantine pests and invasive invertebrates. I studied zoology at Imperial College (University of London) and did a PhD on the population dynamics of a cereal aphid (Metopolophium dirhodum) in the UK. I spent 5 years with the British Antarctic Survey studing cold hardiness of Antarctic invertebates and 17 years with the Food and Environment Research Agency. My main interests now are natural history, photography, painting and bird watching.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

The Quagga

Science Blog of the SciComm Students @ Natural History Museum, Zoological Society of London & University College London

Exploring Colour

New Zealand

Gwen Pearson

Entomologist. Educator. Writer. Nerd.

Davina's observations

Observations of nature and science

Michael Whitehead

Plants, pollination, evolution, ecology, natural history.

The year of the fly

Exploring the families of British Diptera

Jonathan Pomroy

Wildlife & Landscape Artist

the glyptodon

Stories of natural history


Research blog of Renee Rossini

Notes on a Spanish Valley

Award-winning blog - Living in rural Andalucia

The Art of Blogging

For bloggers who aspire to inspire

walter sanford's photoblog

Showcasing some of my digital photography and videography.


Science, skepticism and dragonflies

Paths Unwritten

Lost Cities. Forgotten Spaces. Curious Places.

Q13 FOX News

Seattle and Western Washington's source for breaking news, weather, and sports. Home of Washington’s Most Wanted and the Seattle Seahawks.

Spanish Linguist

a linguist writes about Spanish

Ray Cannon's nature notes

Every picture tells a story

Too Lazy To Weed

The not so ordinary wildlife of an ordinary (but scruffy) garden

Nature etc.

Books, birds and tales from the wild

%d bloggers like this: