The armrakid family is a family of arachnid-like creatures introduced in Pikmin 4. It contains only one member, the Crusted Rumpup. All members of this family belong to the Derrierus genus.
Members
Crusted Rumpup
- Main article: Crusted Rumpup.
Scientific name: Derrierus capillium
The Crusted Rumpup is a scorpion-like boss first found guarding the third landing site in the Serene Shores in Pikmin 4. They have a red carapace and a greyish-black underside. Unlike scorpions, they do not have eight legs and also do not use their tail as a defense mechanism, it is actually their weak point. Rather their only attack is to charge towards prey and catch them in its mouth.
Naming
The family’s name is a portmanteau of “armor”, referring to their armored bodies, and “arachnid”, referring to the only member’s scorpion-like appearance.
Names in other languages
| Language | Name | Meaning | Notes |
|---|---|---|---|
 Japanese |
ヨロヒガタ科? Yorohi gata ka |
Armor-hard family | |
 French |
carapachnides | From "carapace" (shell) and "arachnides" (arachnid) | |
 German |
Panzerarachniden | Shellarachnid | From "Panzer" (Shell,Armor) and Arachnid |
 Korean |
갑옷전갈 과 gab-osjeongal gwa |
Armored scorpion | |
 Portuguese |
Caraescorpinídeos | From "carapaça" (shell) and "escorpião" (scorpion) | |
 Spanish |
Armarácnidos | Armorachnids | From "armadura" (armor) and "arácnido" (arachnid) |
