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Tennessee | United States

German Cockroach

Cockroach | Blatella germanica

Entry Last Edited: 03/21/2024 | Content ©www.BugsOfTennessee.com

Insect Order (Blattodea)

Order Blattodea represents the cockroach, the bane of homeowners and businesses alike. North America is home to roughly seventy or so species (compared to the 4,000 recoginized around the globe). Cockroaches are well-known indoor pests, typically foudn near food and water sources and in greta numbers. However, they are also native to outdoor spaces as well. Despite having wings, cockroaches are agile, fast runners and can disappear before one has time to deal with them. North American varieties resemble one another to an extent, being red, brown, or black in color and having wings set over their abdomens (both forewings and hindwings are present). Long antenna are seen at the head and short protrusions called cerci can be seen at the end of their abdomens.


Other Names: "Croton Bug"

The Taxonomic Breakdown is the scientific way to categorize a partocular insect species from its largest group (Animalia) to its smallest (variable). The Genus and Species categorizations taken together make up the species' scientific name shown above, in this case Blatella germanica.

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Blattodea
Family: Blattellidae
Genus: Blatella
Species: germanica


Antenna insect icon
Antenna: Antenna are noticeably apparent on this insect.
Indoor insect icon
Indoors: Can be found indoors; inside dwellings.
Nocturnal insect icon
Nocturnal: Most likely to be spotted during night time hours.
Outdoor insect icon
Outdoors: Typically found across the great outdoors.
Six-Legged insect icon
Six-Legged: Six legs are common to this insect.
Winged insect icon
Winged: Has wings to hop or fly over distance.


The German Cockroach is also known by these other names:

Croton Bug

The German Cockroach has been identified by site users by the following descriptors:

winged    flying    flight    brown    black    antenna    six-legged    eyes    fast    resilient    outdoors    indoors

Sighting Guide

The general likelihood of encountering this insect based on a given month of the year in the state of Tennessee. Generally, the best sighting months are June through August with peak occurring in July.



Below is a representation of the 'smallest-small' and 'largest-large' sizes commonly associated with the German Cockroach. Due to monitor differences, sizes may not be exact on your particular screen. Conversions to millimeters are provided for convenience.

0.51 inches
(13 mm)
0.63 inches
(16 mm)


It has a typical diet of the following: Human Food Supplies; Refuse / Garbage.

Identifying Colors

Below you will find the colors most commonly associated with the German Cockroach. Both Primary and Secondary colors are represented in the showcase. Due to monitor differences, colors may not be exact representations.


Tennessee County Reach

The German Cockroach can be found in the following Tennessee counties:

Anderson; Bedford; Benton; Bledsoe; Blount; Bradley; Campbell; Cannon; Carroll; Carter; Cheatham; Chester; Claiborne; Clay; Cocke; Coffee; Crockett; Cumberland; Davidson; De Kalb; Decatur; Dickson; Dyer; Fayette; Fentress; Franklin; Gibson; Giles; Grainger; Greene; Grundy; Hamblen; Hamilton; Hancock; Hardeman; Hardin; Hawkins; Haywood; Henderson; Henry; Hickman; Houston; Humphreys; Jackson; Jefferson; Johnson; Knox; Lake; Lauderdale; Lawrence; Lewis; Lincoln; Loudon; Macon; Madison; Marion; Marshall; Maury; McMinn; McNairy; Meigs; Monroe; Montgomery; Moore; Morgan; Obion; Overton; Perry; Pickett; Polk; Putnam; Rhea; Roane; Robertson; Rutherford; Scott; Sequatchie; Sevier; Shelby; Smith; Stewart; Sullivan; Sumner; Tipton; Trousdale; Unicoi; Union; Van Buren; Warren; Washington; Wayne; Weakley; White; Williamson; Wilson

German Cockroach Picture (1)

1 of 1
Front left side color view of a German Cockroach on stainless steel surface.; Credit: Jason H.
This image is original to www.InsectIdentification.org; Used with Permission.

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