They utilized an unknown alloy that was harder and lighter than any metal registered by the Federation in the 23rd century. Their construction techniques drew the alloy into filaments and were spun like a spider's web. Their spaceship designs incorporated hexagonal cell formations that were nearly identical to the honeycombs of bees on Earth. Among their more unique technology utilized was the energyaccumulating wands they used to collect energy from motion, sound, light, heat, and magnetism.
In the script of "Beyond the Farthest Star", the only member of this insectoid species that appears in the episode is described as "insect-like, but not grotesque" and is said to be a commander. Also, the pod ship's control room was to have been shown in the alien's message and, from comparison to the control panel, the audience was to have seen that the creature's size was huge. The script also points out that its voice box was vastly different from Humans.
Within the pressurised part of the ship, air and gravity were both within two points of Earth normal, hinting at its environmental requirements.