The bat tick is a species of soft tick occasionally found associated with bats roosting in structures across the contiguous United States and into southern Canada. Soft ticks get their name from the flexible, granular texture of the exoskeleton, as opposed to hard ticks, which have a prominent dorsal shield, as exemplified by the American dog tick, Dermacentor variabilis, and brown dog tick, Thipicephalus sanguineus. Adult bat ticks measure about ⅜-inch (1 centimeter) in length and may range in color from gray to reddish-brown to black.

The European starling is yet another example of a failed attempt at releasing non-native species thought to be beneficial. One hundred European starlings were imported from England and released in New York's Central Park in the early 1890s, with hopes that this species would help control insect pests. Instead, the starlings spread throughout North America — to the detriment of certain native bird species that were outcompeted in claiming available nesting holes.

The picture-winged flies of the Family Ulidiidæ (formerly Otitidæ) are represented by about 127 species in North America. The common name ascribed to the flies in this family refers to the black and yellow patterns on the otherwise transparent wings. Delphinia picta is the picture-winged fly species most often encountered in urban and suburban settings in the eastern half of the United States.

The three species of wood cockroaches most encountered by pest management professionals (PMPs) in the contiguous U.S., from the Great Plains eastward, are the Pennsylvania wood cockroach, Parcoblatta pennsylvanica; a look-alike cockroach, P. fulvescens; and the Virginia wood cockroach, P. virginica.

At first glance, the polybiine or long-waisted paper wasps of Genus Mischocyttarus (pronounced "Mis-k-sit-ar-us") look just like their close relatives, the Polistes paper wasps. Both genera of wasps construct umbrella-like paper maché nests on sheltered or recessed surfaces of structures, attached by one or more stalks. The social structure and behavior of the wasps of both genera are similar as well.

Orbweaver spiders usually are brought to the attention of pest management professionals (PMPs) on account of the large and formidable-looking representatives, such as the brightly colored garden spiders (Argiope species) and related pot-bellied species, including the barn spider (Araneus cavaticus), marbled spider (A. marmoreus), and shamrock spider (A. trifolium). Lesser-known members of this family are the trashline orbweaver spiders.

The warehouse beetle, Trogoderma variabile, and the larger cabinet beetle, T. inclusum, are the Trogoderma beetle species most frequently encountered by pest management professionals (PMPs) in clients' dried food products, as well as in collectibles and personal property comprised of dried animal and plant material. Both species are oval-shaped and mottled; their color patterns are patches of short white, yellow or orange hairs (setae) contrasted against areas of black or dark brown hairs on similarly colored elytra and pronotum.

The so-called Caribbean crazy ant is yet another nuisance ant species to flourish in Florida and possibly Texas. This relative of the definitive crazy ant, Paratrechina longicornis, shares its relative's quick, erratic foraging and trailing behavior and is similar in form. There are 17 or so species of Paratrechina reported within the contiguous United States, and four of these are likely to be encountered by pest management professionals (PMPs) in and around structures.

The meal moth is a stored product pest that occurs throughout the United States, but is less frequently encountered than its smaller relative — the Indianmeal moth, Plodia interpunctella. The meal moth has a wingspan of about 1 inch (about 25 millimeters), but with wings folded delta-style at rest, it appears to be about ½ inch (13 millimeters) long.