Males are winged and females lack wings. Males may be attracted to lights at night. Females lay eggs in a protective capsule. Tiny versions of adults called nymphs hatch in spring. Adults are most active from spring to late autumn.
Details of the:
Western Wood Cockroach
Common name: Western Wood Cockroach
Scientific Name: Parcoblatta americana
Size (Adult, Length): 8mm to 15mm (0.31in to 0.59in)
Identifying Colors: brown
Additional Descriptors: fast, flying
North American Reach (Though Not Limited To*): California; Nevada; Oregon; Mexico
* Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.