Wet weather favors crickets that congregate in garages, crawlspaces and yards, making noise into the night. The sound that crickets make is actually created when male crickets rub their wings against each other. Females and immature (wingless) crickets do not make any noise at all.
For the year following excessive rains, huge cricket populations can build in the desert and around homes. The species most commonly infesting homes is the familiar, tan Indian house cricket. They collect in small cricket communities not unlike the “nests” of cockroaches, to whom they are related. Their droppings are dry and granular and may be mistaken for termite droppings to the untrained eye. During the monsoon season and into the winter, odd individual field crickets can be found running through living rooms or bedrooms at night.