This is kinda what I imagine the flying alien looking like.
I figure it's got the basic insect parts like you'd expect on earth, but with the odd unvanquished alien characteristics, armor plating, large mandibles, spikes.
Anti-personel, offensive
has stronger armor when landed with closed wings, but not fast or mobile. Open wing membranes are weak and if damaged become inoperable (is that possible?)
Has a strong close range attack and weak ranged, poison spit?
Stage 3. or S2 no range, no armor, fast; S3 armored, ranged, slower.