These are the wolf spiders. They generally do notmake webs but move aboutin search of their prey. The eyes are of unequal size; the anterior are the smallest and the second row is the largest. The chelicerae are relatively long, and the legs are long and often spinose. The egg-sac is globular with a median seam. Most wolf spider females carry the egg-sac attached to their spinnerets. When young emerge they climb on to the mother's abdomen, and they are carried there for some time. Lycosa is a very large genus and it includes most of the large-bodied wolf spiders. Some species build silken retreats under stones or in depressions on the ground, while others wander in search of prey. These spiders occur indoors during spring and fall, when adults are foraging or mating.

Carolina wolf spider, Lycosa carolinensis (Fig. 18.7a) Males are 18-20 mm long and females are 22-35 mm long. The carapace is uniformly dark brown with gray setae but without distinct marking; it is light brown in males. Mandibles are brown with orange-yellow setae anteriorly. The abdomen is dark brown with a pale median longitudinal stripe. Legs are light gray with dark bands; leg 4 may be 4 mm long. The ventral surface is blackish brown, including the first and second segments of the legs. This is one of the largest spiders in North America. It occurs indoors in humid habitats, such as bathrooms and basements.

Garden wolf spider, Lycosa godeffroyi Males are 15-20 mm long and females are 20-25 mm long. This is a common species in coastal New South Wales, Australia.

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