Sheargrub

The Sheargrub, also known as the "Mandiblard", is the namesake for the Mandiblard category as a whole, and most commonly known species of Mandiblard to be documented and studied on PNF-404. It's often mistaken for the larval stage of the flying Shearwig.

Appearance
Sheargrubs are rather small creatures, about the same size as the Pikmin they typically consider prey items, and are very vulnerable out on the surface. Unlike most other insect-like creatures, but much like Bulborbs, Sheargrubs hold a bit of sexual dimorphism.

Female Sheargrubs are harmless by themselves, looking like grubs with small mandibles and pinkish skin. Male Sheargrubs however are more well-developed, with longer mandibles to snatch prey. They're also more armored with purple exoskeletons along their heads.

Behavior
Sheargrubs live most of their lives underground, only venturing out to the surface when small prey comes close. Female Sheargrubs will only scavenge kills however, given their weaker mandibles.

According to much of Captain Olimar's notes, they have a reputation for gnawing and destroying wooden bridges.