Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Periplaneta fuliginosa - Smoky Brown Cockroach

Found together - Periplaneta fuliginosa Roach - Periplaneta fuliginosa Ectobiidae ? - Periplaneta fuliginosa nymph - Periplaneta fuliginosa Wingless Roach - Periplaneta fuliginosa Smoky Brown Cockroach - Periplaneta fuliginosa Large Roach - Periplaneta fuliginosa Black with white stripe - Periplaneta fuliginosa
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Blattodea (Cockroaches and Termites)
Superfamily Blattoidea
Family Blattidae
Genus Periplaneta
Species fuliginosa (Smoky Brown Cockroach)
Explanation of Names
Periplaneta fuliginosa (Serville 1839)
Identification
These large, dark brown cockroaches are most easily distinguished from the other species of Periplaneta found in the US by the lack of any pattern on the pronotum. Other characteristics that differentiate this species from the others of this genus can be found on the Periplaneta page.
Late instar nymphs can be very difficult to differentiate from some specimens of Oriental Cockroach, particularly older specimens that have developed a dark brown hue rather than the typical pure black coloration.
Range
so US
Life Cycle
Ootheca are dark brown, larger than the American Cockroach ootheca, and more similar to the ootheca of the Australian and Brown Cockroaches. They can be differentiated from the two species by the presence of a blunt point on one side of the ootheca.
Early instars are black insects with characteristic white markings on the distal antenae, proximal antennae, thorax and abdomen: