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Aposematic parallels between fish and butterfly
 

 

stripedfishcolouration2

Plotosus lineatus photo © Hectonichus

stripedfishcolouration

Plotosus lineatus photo © Hectonichus

 

Both the striped eel catfish and the zebra longwing butterfly rest gregariously in dim light and are so poisonous that they are avoided by predators. Although neither species could be described as a colonial organism, the warning colouration – consisting of striping – of both species is likely to work only as a collective pattern. This is because their bodies are too small and their stripes too narrow to make them particularly conspicuous as individuals even in bright light.

 

Robin and the Honey Badger, 22 March 2016

 

Photographs:

Plotosus lineatus appearance whengrouping together

Heliconius charithonia appearance when grouping together

 

butterflycolouration2Heliconius charithonia photo © Diego Delso

 

                                          

 

 

i.e. more intensely pigmented than the normal colour-morp
Last modified on 14 November 2016

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