Acheta domesticus, commonly called the house cricket, is a cricket most likely native to Southwestern Asia, but between 1950 and 2000 it became the standard feeder insect for the pet and research industries and spread worldwide. They can be kept as pets themselves, as this has been the case in China and Japan.
The house cricket is typically gray or brownish in color, growing to 16–21 millimetres (0.63–0.83 in) in length. Males and females look similar, but females will have an ovipositor emerging from the rear, around 12 millimetres (0.47 in) long. The ovipositor is brown-black, and is surrounded by two appendages. On males, the cerci are also more prominent.