[2][3][4] The male Parcoblatta fulvescens is relatively slender, has long tegmina (outer forewings), and is slightly longer than the female.

[3] It is a mostly uniform pale brownish-yellow, with sometimes darker pronotum (the plate behind the head) and legs, and usually dark brown cerci (the pair of appendages on its rear-most segment).

[3] It is similar to the ootheca of P. virginica, but is larger and has slightly narrower spacing of vertical divisions.

[5] Females of P. virginica are on average smaller and less robust, less often have wide coloration differences, normally have a supra-anal plate with straight lateral edges that converge in a more acute apex, have a less convex caudal (rear) edge of the sixth dorsal abdominal segment, and have fewer proximal spines of the cephalic femora.

[5] The distribution of the species includes Ontario, Canada,[4] and the eastern United States, including Alabama, Arkansas, the District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Maryland, Mississippi, Missouri, New Jersey, New York, North Carolina, South Carolina, Virginia, and Texas.