The petite Johnson Jumping Spider can launch itself distances over 5 times the length of its own body.
The Johnson Jumping Spider does not build webs to catch its food. It seeks it out, wandering around until it happens upon a good prey item. These tiny spiders jump large distances (considering their size) to catch their prey. Olympic long jumpers have nothing on these little powerhouses. They are day-time hunters and hide out at night and in the winter.
They have been known to bite humans, but without serious side effects. Females weave funnel-shaped webs under rocks or between objects for laying eggs. Males have an abdomen that is completely red, whereas the female will have a black line down the center of her abdomen. Before molting, the spider may have a slightly more colorful abdomen. A central white mark is flanked by short, line white dashes along the sides.
Scientific Name: Phidippus johnsoni
Other Name(s): Red Jumping Spider
Size (Adult; Length): 7mm to 13mm (0.27in to 0.51in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Legs: Spiders have four pairs of legs and these are attached to the cephalothorax.
Pedipalps: Small appendages near the mouth used as taste and smell organs.
Cephalothorax: Contains eyes, head, mouthparts, and legs.
Abdomen: Contains various organs related to digestion, reproduction, and web-making.
Spinnerets: Used in the production of spider silk for fashioning webs or catching prey.
NOTE: Unlike insects, spiders have both an endoskeleton (internal) and exoskeleton (external).