Fluorescence
Guides
Anuroctonus pococki bajae
Californian swollen stinger scorpion
Anuroctonus pococki bajae is a subspecies of scorpion in the family Chactidae, endemic to Baja California. It is distinguished by a pronounced swollen bulb on the telson (stinger segment), a trait referenced in its common name. The species exhibits defensive, aggressive behavior when provoked and is nocturnal. Under ultraviolet light, it fluoresces bright blue-green like other scorpions.
Centruroides gracilis
Slender Brown Scorpion, Florida Bark Scorpion, Brown Bark Scorpion, Red Bark Scorpion, Slender Red Scorpion, Alacran Prieto, Alacran Azul
Centruroides gracilis is a medium to large scorpion in the family Buthidae, notable for its wide color variation and extensive introduced range. Females reach up to 10 cm, while males can exceed 15 cm. The species exhibits remarkable phenotypic plasticity, with individuals in single populations or even litters showing colors ranging from reddish to dark brown with contrasting leg and chelae coloration. It is native to northern Central America but has been introduced to numerous regions including Florida, the Caribbean, South America, Africa, and the Canary Islands, often occurring in synanthropic habitats.
Xystocheir
Xystocheir is a genus of flat-backed millipedes in the family Xystodesmidae, endemic to California. The genus comprises nine species distributed in the Coast Ranges and Sierra Nevada. Members of this genus are notable for producing cyanide as a chemical defense against predators. Xystocheir dissecta, a species within this genus, has been documented to fluoresce under ultraviolet light.