A naturalist field study in long-wave ultraviolet
The dark
still glows.
Beta-carboline in the hyaline cuticle drinks the ultraviolet and answers in a cold cyan-green — invisible by day, unmistakable by night.
Specimen rendered against desert-night black at 365 nanometres; fluorescence captured at rest, no daylight palette admitted.
i. telson — peak emission
ii. pedipalp chela
iii. hyaline cuticle