Army Ant Parade

Set in a Panamanian rain forest, Army Ant Parade by April Pulley Sayre, illus. by Rick Chrustowski, puts readers right in the center of the excitement, suggesting they look for telltale signs, such as an antbird rustling (""Chew-chew-chew,"" it calls) or scorpions scurrying. The earthtoned illustrations show the subject close up as well as advancing en masse. Back matter includes additional information. (Mar.)