The Lorcar reflexively created a fixed-distance barrier as the Titan came barreling at them. Instead of blocking the assault, it forced the Lorcar themselves back, protecting them from the brunt of the attack but still leaving them too dazed to put up a powerful counterattack. About the only thing they DID do, only thing they could focus on, was weaponizing their shields in case the enemy tried that again...They made it so their shields, once under attack, would deliver a electrified blast. Certainly not enough to put up with a Titan, but in their state it was the best they could do. And fortunately, the new attacking ships weren't Titans, which would heavily electrify them.
The drilling ships would find themselves being corroded by the acid of the Yellow Jackets they tried to burrow into. Yellow Jackets were made to eat metal, so they were particularly lethal for the ships to burrow into. As for the Rail Cannon shots, they mostly tried to keep moving, preventing the foes from getting a clear shot at them. All damage the ships HAD sustained would be frantically repaired by Worker-Bee Castes. They wouldn't be able to instantly repair everything, but they could still make a difference.
The ground Castes, most of them, were actually too small to be burrowed into, except for the Breeder Castes and a kind of blob-looking thing that it looked like was created by several others coming together. The smaller Lorcar ran for the cover of snow, digging into it to evading the ships while some of the stronger ones actually fired from the ground, a hail of bone striking the ships. Or their shields. Either way. The Breeders, meanwhile, were building-sized Lorcar with long, hived arms. These arms were used by them to grab the ships trying to drill into their thick carapace, and either crush them in their hands or throw them directly at other ships headed for them. As well, while the ships were gripped, Lorcar swarmed out of the holes in the arm and climbed onto the ships, gripping in footholds and breaking through the window and hull, intent on doing as much damage as possible. These were mainly Traverse with Blade-Arms, giving them impressive cutting and gripping power to do this.