Euthlastoblatta is a genus of cockroaches in the family Ectobiidae, which comprises a variety of smaller and more agile cockroaches often referred to as "wood cockroaches." Members of this genus are typically found in natural environments and are not considered household pests like some other cockroach genera. The coloration is usually light brown, tan, or dark brown, often with subtle markings or patterns that help them blend into their natural environment, such as leaf litter or bark.