Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Trilobite Beetle

Platerodrilus paradoxus


Female of Platerodrilus paradoxus, Trilobite Beelte. She is black with bright orange edges and spots on her back. Around 6 cm in length. Surprisingly, saw quite a few of them during my night walk.


Tropical forest


The Trilobite Beetle has a very interesting aspect, Females retains their larvae form throughout her whole life and can grow to as big as 6 cm while they Males will transform to the regular Beetle look with wings and will just be less than 1 cm in size.

Species ID Suggestions

Sign in to suggest organism ID


AlbertKang 7 years ago

Thanks, @ashutosh.
They are considered threatened due to loss of habitats.
Still a lot has yet to be known about them. There are hardly any references of their Males, and how the Males looks likes.
It will be interesting to see a pair and have photo document of it :D

Ashutosh Dudhatra
Ashutosh Dudhatra 7 years ago

Beautiful!Is it endangered albert?

AlbertKang 7 years ago

Thanks, @Fyn Kynd, @Joseph and @dan :)
Yes, @Mark, its very interesting. The Males are seldom seen and most of the time, you wouldn't think that the Males with wings are of the same specie with the Females in the form of larvae, unless you see them together :D

Mark Ridgway
Mark Ridgway 7 years ago

Great info thanks Albert.. I suppose someone needs to mix the gene pool.

dandoucette 7 years ago

Awesome Albert!


Fyn Kynd
Fyn Kynd 7 years ago

Your spotting has been nominated for the Spotting of the Week. The winner will be chosen by the Project Noah Rangers based on a combination of factors including: uniqueness of the shot, status of the organism (for example, rare or endangered), quality of the information provided in the habitat and description sections. There is a subjective element, of course; the spotting with the highest number of Ranger votes is chosen. Congratulations on being nominated!

AlbertKang 7 years ago

Thanks, @Ernst and yes, very nice to see bright orange on her :)

Spotted by

Sabah, Malaysia

Spotted on Sep 2, 2014
Submitted on Sep 12, 2014

Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team