Trombicula alfreddugesi also called Eutrombicula alfreddugè or E. alfreddugè, is a species in the genus Trombicula. (Eutrombicula is a subgenus of mites in the mite genus Trombicula of the family Trombiculidae.)

It is the common chigger

Chigger

A chigger or harvest mite is a mite in the family Trombiculidae that lives in North American forests and grasslands.Chigger may also refer to:...

 species of the United States, also sometimes called the harvest mite

Harvest mite

Trombicula is a genus of harvest mites in the Trombiculidae family. In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching...

. Chiggers are the parasitic larval stages of these free-living mites. It is rarely, if ever, seen by most people in the dry Western states because they prefer humid climates. They are commonly found in growth and grassy brush areas; the larvae host on animals (e.g. reptiles, birds, and wild and domestic mammals), causing welts that can turn into dermatitis

Dermatitis

-Etymology:Dermatitis derives from Greek derma "skin" + -itis "inflammation" and genetic disorder.-Terminology:There are several different types of dermatitis. The different kinds usually have in common an allergic reaction to specific allergens. The term may describe eczema, which is also called...

. See chigger

Chigger

A chigger or harvest mite is a mite in the family Trombiculidae that lives in North American forests and grasslands.Chigger may also refer to:...

s.