Artificial-light-association
Guides
Attulus fasciger
Asiatic Wall Jumping Spider
Attulus fasciger is a small jumping spider native to northern and western Asia, introduced to North America in the mid-20th century. It measures 3–4 mm and exhibits brownish-black coloration with mottled brown-and-grey patterning. The species has successfully established in human-modified environments, particularly on man-made structures where artificial lighting extends its foraging opportunities. Males are distinguished from females by a more slender abdomen and enlarged black palps.