Jumping spiders (Salticidae), aka the epitome of cute spiders, at their biggest ½ inch size, may fool arachnophobes into thinking they've chanced upon a still-maturing wolf spider before it's ...

Size: About half an inch Location: Eastern and midwestern U.S. The yellow sac spider is common in the ... usually consisting of large insects. Female wolf spiders carry the egg sacs in their ...