B. Orientalis
Length
25-30 mm
Color
Dark brown to black
Wings
Undeveloped in female. Only cover ¾ length of abdomen in male.
Ootheca
Deposited after a few hours.
Number of ootheca produced by female
5-10
Number of eggs per ootheca
16
Hatching time
5 months
Duration of nymphal development
5 - 9 months
Habitat
Buildings; also outdoors on rubbish tips.
Food
Omnivorous
Movement
Runs
Habit
Nocturnal
S. Longipalpa
Length
10 - 15 mm
Color
Yellow - Brown
Wings
Both sexes have wings but those of male are longer.
Ootheca
Deposited after one day.
Number of ootheca produced by female
1 - 18
Number of eggs per ootheca
16
Hatching time
1 - 2 months
Duration of nymphal development
2 - 4 months
Habitat
Food areas and heated buildings.
Food
Omnivorous
Movement
Runs; May fly at high temperature.
Habit
Nocturnal
B.Germanica
Length
12-15 mm
Color
Brown with two dark stripes on thorax.
Wings
As long as body.
Ootheca
Carried by female until eggs are ready to hatch.
Number of ootheca produced by female
4-8
Number of eggs per ootheca
35-48
Hatching time
1 month
Duration of nymphal development
6 weeks-6 months
Habitat
Heated building and ships, food areas. Prefers high humidity.
Food
Omnivorous
Movement
Runs
Habit
Nocturnal
P. Americana
Length
28 - 44 mm
Color
Shiny Red-Brown
Wings
Longer than body in male; overlap the abdomen slightly in the female.
Ootheca
Carried by female for several days before being deposited.
Number of ootheca produced by female
10 - 15
Number of eggs per ootheca
6 - 28
Hatching time
1 - 2 months
Duration of nymphal development
5 - 15 months
Habitat
Drains, basements, pipe ducts and risers.
Food
Omnivorous
Movement
Runs; May fly at high temperature.
Habit
Nocturnal