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Field Cockroach

Actual Size: Small up to ½”

Characteristics: Olive-brown coloration, two blackish-brown stripes on the face.

Legs: 6

Antennae: Yes

Wings: Yes, and they can fly.

Habitat: Frequently found in irrigated areas, these pests typically inhabit leaf litter and various forms of plant debris.


  • Primarily live outside.
  • Occasionally confused with German cockroaches. 
  • Unlike German cockroaches, they can be found during the day.

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Field Cockroaches in Kailua Kona

The field cockroach, also known as the Vaga Cockroach, is a small cockroach possibly introduced to the United States from southwest Asia. It has now established a significant presence, spanning from Texas to the West Coast and extending north through California. Commonly found in irrigated parts of southern Arizona and adjacent areas in Southern California, the field cockroach resembles the German cockroach but can be differentiated by the blackish-brown area on its face, extending from the mouthparts to between the eyes. Females of this species can live for over 200 days and can produce between 200 to 300 offspring or up to 6 generations in a year.

Field Cockroach Habitat

Field cockroaches primarily feed on decaying plant matter, preferring decomposing vegetation and fruits like dates. They can be found outdoors under stones, clumps of earth, and debris. Unlike German cockroaches, field cockroaches prefer to reside outside, in leaf litter and plant debris, seldom infesting homes or buildings. However, during drier periods, they may enter structures searching for moisture. Due to their close resemblance to German cockroaches, homeowners may mistake field cockroaches for German cockroaches when they find them in their homes.

Field Cockroach Behaviors, Threats, or Dangers

While not as widespread as other species, field cockroaches cause similar concerns. Field cockroaches are primarily an outdoor cockroach species, and when found indoors, they can be treated as an occasional invader that will not take up residence indoors.  Field roaches hide in cracks, crevices, and corners of homes. They can also spread bacteria if they gain access to kitchens and pantries. Populations of these fast-breeding cockroaches can increase rapidly if left unchecked. For that reason, always contact your local cockroach exterminators for help.

Although not as prevalent as other cockroach species, field cockroaches pose a similar danger to humans as other cockroaches. Field cockroaches prefer to live outdoors. When encountered inside homes, they are usually just visiting and will not infest the structure. When inside a home, they are known to infiltrate kitchens and panties, spreading harmful bacteria. Given their rapid reproduction, if left unchecked, populations can multiply rapidly.

For that reason, always contact your local cockroach exterminators for help.