Cockroaches Flashcards

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1
Q

Order of cockroaches

A

Blattodea

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2
Q

Cockroaches aggregate in groups and share food and digestive fluids but are not

A

eusocial - they do not have a division of labor like termites and other social insects

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3
Q

How many species of cockroaches are found in the U.S.?

A

About 70

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4
Q

Two species of cockroaches that are known to live indoors exclusively

A

German and brown-banded

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5
Q

Cockroaches can spread pathogens that cause diseases like

A

Salmonella

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6
Q

Cockroaches produce

A

allergens that can affect human health

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7
Q

Allergens produced by cockroaches come from

A

proteins found in cockroach feces, shed exoskeletons, and their dead bodies, which become airborne in the confined space of an infested home

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8
Q

Cockroaches develop via

A

gradual metamorphosis

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9
Q

The only cockroach species to carry the ootheca internally until the nymphs hatch, giving the appearance of a live birth

A

Surinam

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10
Q

Why does cockroach feces attract nymphs and other adults to their harborage areas?

A

aggregation pheromones

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11
Q

The eating of feces

A

coprophagy - an important means for young cockroaches to obtain nutrition

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12
Q

One reason why cockroach bait is so effective?

A

foraging cockroaches defecate some of the bait before they die, and first instar nymphs then consume it and die

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13
Q

Believed to contribute to the distribution of insecticides among cockroaches in harborage areas

A

necrophagy (the eating of one’s dead) and cannibalism

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14
Q

Produce five or more ootheca containing as many as 50 eggs over the course of a year

A

German

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15
Q

What makes cockroaches likely candidates for developing insecticide resistance?

A

their high reproductive potential

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16
Q

Control strategies should include applications of

A

baits, dusts, and sprays in and around harborage areas

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17
Q

These cockroaches are found outdoors in warmer climates; in sewers; and indoors in heated buildings year-round

A

American

18
Q

Found in low, weedy vegetation

A

Asian and Field

19
Q

Found mostly outdoors, but occasionally indoors

A

Smokey brown

20
Q

Found mostly outdoors, occasionally indoors, especially in potted plants

A

Surinam

21
Q

exuviae

A

skin castings

22
Q

12-18 eggs per ootheca; females deposit ootheca into cracks and crevices, especially moist areas

A

American

23
Q

14-18 eggs per ootheca; females sometimes glue ootheca to furniture, ceilings, or appliances

A

brownbanded

24
Q

14-18 eggs per ootheca; females carry ootheca until ready to hatch

A

field cockroach

25
Q

16 eggs per ootheca; female may carry ootheca for up to five days before depositing it near a food source

A

oriental

26
Q

only the males of these cockroaches can fly

A

brownbanded and native wood cockroaches

27
Q

how many eggs per segment of an ootheca

A

two

28
Q

have rapid development (approx 100 days from egg to adult)

A

german

29
Q

adult cockroaches cannot regenerate new legs (if torn off) but….

A

nymphs can (when they molt)

30
Q

often a key feature in distinguishing cockroach species

A

pronotum

31
Q

cockroaches two sets of palps are called

A

labial & maxillary

32
Q

cockroach eyes may be different sized based on

A

male vs female

33
Q

middle part of cockroaches face is called

A

fron

34
Q

Can take 9 months to 2 years to develop from egg to adult

A

American

35
Q

Found in different locales than Germans

A

Brown banded

36
Q

Can be found throughout structure often behind picture frames and mounted artwork

A

Brown banded

37
Q

Less moisture needed than German cockroaches

A

Brown banded

38
Q

Transparent edge on pronotum, no stripes on pronotum - black bell-shape on pronotum - horizontal strips on wings

A

Brown banded

39
Q

Do not breed indoors so exclusion and perimeter treatments are best - indoor applications not effective

A

Asian

40
Q

Two behaviors of Asian cockroaches to distinguish from Germans

A

Asians are attracted to light and readily fly