Carriola Tussock Moths: these moths have translucent patches (i.e. hyaline windows) on their wings, and their green-tinted veins are clearly visible within
Above: Carriola witti
Moths of the genus Carriola have a very unusual appearance, as their wings are covered in translucent patches that reveal a delicate network of greenish-yellow veins. The green coloration is caused by the haemolymph (the insect equivalent of blood) that passes through these veins when the moth's wings are initially unfurled.
Above: the male form of Carriola thyridophora, with a close-up of the hyaline windows and bright green veins on its wings
The males of this genus typically have brown or beige borders around their wings, while the females have pink or white borders instead. The hyaline windows in each wing also tend to be much clearer and more extensive in the females, which gives their wings a lacey appearance.
Above: the female form of Carriola seminsula
This article describes the adaptive benefits of wing transparency in moths:
The coevolutionary arms race between prey and predator has generated some of the most striking adaptations in the living world, including lures, mimicry and camouflage in prey. Transparency, by definition, constitutes the perfect background matching against virtually all types of backgrounds. Transparency is common in pelagic environments where there is no place to hide.
Above: genus Carriola
Carriola tussock moths can be found in many different countries throughout Southeast Asia, including Indonesia, Singapore, Thailand, Laos, Myanmar, the Philippines and Malaysia. Some of these moths are also found in China, India and Sri Lanka.
Above: Carriola seminsula
This is one of my favorite moths, tbh. I love it when moths have hyaline windows on their wings, and this genus is especially beautiful and bizarre.
Sources & More Info:
Nota Lepidopterologica: Review of the Genus Carriola with Descriptions of Four New Species
Singapore Biodiversity: Carriola ecnomoda
iNaturalist: Genus Carriola
BioRxiv: How Transparent Wing Windows Reduce Detectability in Moths
Journal of Evolutionary Biology: Transparency Improves Concealment in Cryptically Colored Moths (PDF)
Moths of Borneo: Carriola Tussock Moths and Carriola ecnomoda
