Trombiculidae

Trombiculidae (), commonly referred to in North America as chiggers and in Britain as harvest mites, and also known as berry bugs, bush-mites, red bugs or scrub-itch mites, are a family of mites. Chiggers are often confused with jiggers, a type of flea. In their larval stage several species of Trombiculidae bite animal hosts to feed on their skin. To do so they embed their mouthparts into the skin, causing irritation. Humans can be hosts.

species of Arachnida

Neotrombicula is a genus of mites in the family Trombiculidae. Species of this genus are found throughout Europe and North America.

Trombicula, known as chiggers, red bugs, scrub-itch mites, or berry bugs, are small arachnids (eight-legged arthropods) in the Trombiculidae family. In their larval stage, they attach to various animals and humans, then feed on skin, often causing itching and trombiculosis. These relatives of ticks are nearly microscopic, measuring 0.4 mm (0.01 in), and have a chrome-orange hue. A common species of harvest mite in North America is Trombicula alfreddugesi.

Leptotrombidium () is a genus of mites in the family Trombiculidae, that are able to infect humans with scrub typhus (Orientia tsutsugamushi infection) through their bite. The larval form (called chiggers) feeds on rodents, but also occasionally humans and other large mammals. They are related to the harvest mites of the North America and Europe.