This is the common name I was a able to find for this one--I'm not being very scientific about this--there are probably other names for it. I've found about 5 different things called, "rhinoceros beetle", the ones with all the horns. I've also seen them called atlas or gideon beetles.
This one in black acrylic ink. My black acrylic ink seems less thick, or gummy than the sepia--I actually prefer it to be a little thicker for drybrush, but at least it's a nice crisp black. Maybe I just need to leave it out a little so it sets up more.