The Millipedes

The largest land arthropod on Hoxia  ( during the Middle Protypocene Epoch 11 MY PD )

The beginning of a lineage of extremely large mostly herbivorous scavengers known as "Train Legged Walkers", resembling real world locomotives but with legs

A distorted extremely fast mobile scavenger that convergently bears an eerie similarity to real life house centipedes.  Colorful and poisonous, they seize control of carcasses before speeding off to the next. 

A strange arboreal crawler, its armed with  short range guns that fire sticky projectiles. It targets  the "new eusocials", immobilizing their ability to fly to make up for its own lack of speed to hunt them directly.