The Cat-faced Spider is every gardener's friend, keeping watch over plants and consuming loads of pest insects.
The Cat-faced Spider is a common name shared by this species and second North American spider. Its other common name, Jewel Spider is also shared with an Australian spider. This name duplication illustrates the usefulness of using scientific names when addressing the identity of living things, which prompts gratitude for the work of Carl Linnaeus, the father of scientific nomenclature.
This harmless spider is an angulate spider, meaning it has two pronounced bumps at the top of its abdomen. The 'cat face' on the abdomen is created by these bumps, which form cat ears, and the pattern in the center of the abdomen, which forms the facial features. This face is usually up-side-down in the garden because this spider prefers to sit with its head toward the ground. The individual spider may vary in color. Some are pale; others are a rich, tawny brown. Usually, a large female is found hiding in plant leaves or debris off to the side of the web, waiting to sense a tremor on the lines of her web. Males are smaller. A female will create an egg sac that holds about a hundred fertilized eggs in it. This egg sac will overwinter and in the spring, the spiderlings emerge and disperse using silk lines to help carry them away to new homes.
Scientific Name: Araneus gemmoides
Other Name(s): Jewel Spider
Size (Adult; Length): 5mm to 26mm (0.20in to 1.01in)
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).