It is, however, quite a large locust, and Blacktron to boot, so it should not be taken lightly.
Given the potential body stresses of a hopping form of locomotion on the pilot, a locust might seem a poor choice of creature on which to model a mech, but on low-gravity worlds like Titan and the Jovian moons, hopping is probably the most efficient means of motion there is. With the low gravity producing much lower stress on both pilot and vehicle, the Locust proceeds in what are effectively a series of low glides, mostly using the legs for altitude maintenance.
The BT221 Locust, then, fills the role of the BT086 Alienator on planets whose gravity is low enough to make a walking gait impractical. Armed with three small plasma pulse cannons and two lasers attached to the forward pilot’s position, the Locust is one of the least armed vehicles in the Blacktron arsenal, but makes an effective single-pilot scout/reconnaissance vehicle.
Obviously I’m in arthropod mode for my space builds, what with the Black Widow antiturtle and the Futuron Scarab, but arthropods make excellent base creatures to model mechs and space vehicles after. I’ve got an idea for a mech based on a pillbug design that can roll up into a ball for atmospheric re-entry drops, but I have no clue yet how I’m going to build it in LEGO.