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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

 

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. 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

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