Megarhyssai come from the Safìr Alliance; they keep the identity and location of their homeworld secret. There is a sizable planetside population on Daia, which is more docile than, and societally unconnected to, the main culture of space piracy.

Megarhyssai, both standard and tauric, are space pirates who board starcraft and return them to their territory, thence to use the crew for incubation, as their original prey species are long extinct. Qachamzok's band is notable for being one of relatively few not to count any taurs among its ranks.

Qchmzk-1410/1411-hktkthkkz-klqkskkhklqkskkh, 366th and 367th daughter of Hktkthkkz-120-klqkskkhklqkskkh-lzltkkqkhzhlzltkkqkhzh, the 48th son of Klqkskkhklqkskkh-05-lzltkkqkhzhlzltkkqkhzh-zqt, the dowager admiral-magess of Band 0312, Emerged on August 5th, 1888, from a cell aboard the band's flag vessel that was populated with a naga substrate. (Twin-tailed megarhyssai are the result of their mother laying two eggs on the same prey item, and one larva consuming the other, hence the dual designation.) Their father led a failed mutiny against his mother during Qachamzok's pupation, for which he was executed and his daughters denied mating at Emergence; as such, they are still a virgin, despite their age. They quickly rose through the ranks and now command a native Pattern 225 battleship, chief among its subgroup. The most notorious of Qachamzok's conquests was a pair of derelict ancient safìr generation ships, whose bumper crop of taurogenic (albeit stasis-frozen) prey items has yet to be exhausted. The trillium laser-etched onto their back is believed to be some sort of medal, and it is by this marking, plus their twin tails, that they are known to the Safìr Alliance.

A brain-computer interface attached to the base of their right antenna, with an armature reaching around their head to present a scouter-style display in front of their compound eye. Fills a similar role to a datapad or tablet.

Cybernetic implants for encrypted radio communication using their ovipositor as a dipole antenna. Their ovipositor is 6.89 m long, resulting in a frequency of 20.704 MHz.