Time budgets and spatial distribution patterns of adult and nymphal smokybrown cockroaches, Periplaneta fuliginosa (Serville), were studied during July 1984 in Houston, Tex. Within 60 min after sunset, adult males and small nymphs emerged from their harborages followed by medium and large nymphs and adult females. Once abroad, all stages foraged for food. After feeding, adult males climbed onto vertical surfaces and oriented head downwards (perching). Most nymphs and adult females returned to harborage sites after feeding, whereas some ( 1 m. Itemized time-activity budgets for P. fuliginosa are presented and intraspecific differences discussed.