noun
Agelena limbata (funnel-web spider)
A specific species of araneomorph funnel-web spider. The name is usually written in katakana as クサグモ.
クサグモは、草の間に漏斗状の巣を作る。
The Agelena limbata spider builds a funnel-shaped web among the grass.
Compound of 草 (kusa, 'grass') and 蜘蛛 (kumo, 'spider'), referring to its habitat. The exact derivation is straightforward.