A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Mirror Spider

Thwaitesia sp


I have been wanting to see this beautiful Spider after seeing other posts from Singapore and Australia and was taken by surprise to find one in Hong Kong. The species known from Australia is Thwaitesia argentiopunctata. This spider is very small in size, around 4-5 mm in size. They are called mirror or sequined spiders, which features reflective silvery patches on their abdomen. The scales look like solid pieces of mirror glued to the spider’s back, but they can actually change size depending on how threatened the spider feels. The reflective scales are composed of reflective guanine, which these and other spiders use to give themselves color.


Tropical forest.

Species ID Suggestions

Sign in to suggest organism ID


AlbertKang 10 months ago

Thanks @Konrad for your kind words and appreciation.

Konrad 10 months ago

This is such a great photo, I love it!

Spotted by

Paracel Islands

Lat: 22.43, Long: 114.19

Spotted on Sep 20, 2018
Submitted on Sep 27, 2018

Related Spottings

Mirror Spider A Jewel spider Silverdrop spider Comb-footed Spider

Nearby Spottings

Spotting Spotting Pyrocoelia analis (窗螢) Giant crab spider