Spiny Spipi

This week's Notorius Monster is Spiny Spipi, the huge crawler of East Sarutabaruta.

Spipi is definately my most reliable NM, with a 3/8 rate on his/her (?) money drop. Spipi drops the Mist Silk Cape:

Or, more often, a Crawler Calculus (boo), a Smooth Stone (also boo), or one or two Silk Thread (not too shabby).

The nice thing about Spipi is that I can farm Beehive Chips, Silk Thread and Saruta Cotton (if I have Steal) while I'm hunting.
Here's my scan path:

Spipi usually only has one or two other people hunting for him/her (?!?) so it's a nice relaxing hunt. Nice cash for an easy drop.