Duliticola sp. aka "Trilobite beetle" (Coleoptera: Lycidae). Still huge mystery for scientists. Disovered in 19th century, only 2 species were discribed to this day. There are more, but they can't be ID without males. In most cases, only neotenic females are known and possible males, tottaly different, were placed in another genus.
...yup, and entomologists are still not sure what these beetles eat
This specimen was found in tropical forest in Kinabalu, Borneo.
D700, Nikkor Micro 60/2.8D, SB-800 and SB-900