Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


Family Blattidae

Cockroach with Corn Chip - Shelfordella lateralis - female Turkestan Cockroach - Shelfordella lateralis - female American Cockroach - Periplaneta americana - male - female nymph - Periplaneta fuliginosa cockroach - Shelfordella lateralis What is this? - Periplaneta fuliginosa Large Roach - Periplaneta fuliginosa elongated light-brown winged cockroach - Shelfordella lateralis - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Blattodea (Cockroaches and Termites)
Superfamily Blattoidea
Family Blattidae
9 spp. (all adventive, except Eurycotis floridana) in 5 genera of 2 subfamilies in our area, ~600 spp. in ~40 genera of 4 subfamilies worldwide(1)
Adults with wings that cover the abdomen: Blatta lateralis males and Periplaneta, males and females of all four species:
Turkestan Cockroach (Shelfordella lateralis) males

American Cockroach (Periplaneta americana)

Australian Cockroach (Periplaneta australasiae)

Smoky Brown Cockroach (Periplaneta fuliginosa)

Brown Cockroach (Periplaneta brunnea)
Similar in appearance to American Cockroach

Adults with wings covering ~75% of the abdomen:
Oriental Cockroach (Blatta orientalis) males

Vestigial wings:
Oriental Cockroach (Blatta orientalis) females - wingpads do not touch in the middle and do not have a pale, lateral stripe:

Turkestan Cockroach (Shelfordella lateralis) females- wingpads do not touch in the middle and have a pale, lateral stripe:

Florida Woods Cockroach (Eurycotis floridana) males and females- wingpads do touch each other in the middle of the back:

Additional species reported from the US
Eurycotis lixa is apparently established in the Florida keys and was originally described as an adventive arriving in New York. Wings do not touch in the middle and do not have a pale stripe, making it look very much like Blatta orientalis females.

The Harlequin Cockroach (Neostylopyga rhombifolia) is an ornate species that would not easily be confused with the other members of this family found in the US. In addition to wild populations in southwestern states, cockroach enthusiasts also keep them as pets.
In general the species found in the US from this family are in areas that are warm and humid, such as the Gulf South. In addition, sewers and steam tunnels provide ideal habitats for some species that have established populations in other areas.