So here it is, the magnificent Trilobite beetle, natural light. Found in Selangor, Malaysia.
Top view of the same Trilobite beetle:
A different type of Trilobite found in Sarawak, Borneo.
And now the Trilobite look-alike that got me excited for the wrong reason:D. As mentioned, I found this about a month ago in Sg Krau Forest Reserve, Raub.
It's actually a firefly larva (Lampyridae)
Well, the next time I come across another one of these, I think I will just turn it over to check if there is any light emitting organ on the tip of the abdomen!
More tropical beetles here.