"...and the spring years are remarkable for a species of fire beetles (oft called jigs) that cavort about the bogs, scores upon scores emitting their fulvous phosphorescence, as the standing males “jig” on their hind legs in most ostentatious displays."
Cracks me up every time I think of it, although I like to think that the displays are both ostentatious and impertinent.
BTW, AS&SOH has some of the best art I've seen in an OSR-ish product. It's metal as all hell without getting into gauche mohawk-y territory, and captures the cold, grim vibe of the setting as written. Plus that cover! It seems like a nice 0.75 ed. AD&D-ish system as well.