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ACE > Wood-Destroying Insects > Flashcards

Wood-Destroying Insects Flashcards

1
Q

How many species of termites are considered to be structural pests in the U.S.?

A

About 20

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2
Q

Termites develop via

A

gradual metamorphosis

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3
Q

Termite larvae lack

A

sclerotization (the darkening and hardening of the exoskeleton)

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4
Q

Three castes of termites

A

workers, soldiers, and reproductives

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5
Q

The most common individuals in a termite colony

A

workers

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6
Q

Responsible for eating cellulose, building tunnels through soil and wood, tending the nursery, and sharing food

A

termite workers

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7
Q

All reproductive termites are dependent on

A

the workers for food and nurture

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8
Q

Termites eat

A

cellulose (a complex carbohydrate found in plant cell walls)

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9
Q

Termites harbor special microorganisms in their digestive tracts to digest cellulose called

A

symbionts (break down cellulose into sugars)

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10
Q

The exchange of nutrition via regurgitation and anal secretions is called

A

trophallaxis

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11
Q

Trophallaxis makes it possible to manage termites colonies with

A

baits

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12
Q

What makes soldier termites incapable of obtaining their own food?

A

their highly specialized fighting jaws

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13
Q

Adult winged reproductives that are capable of becoming primary kings or queens

A

alates

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14
Q

Genetic evidence suggests that _________ are responsible for founding most new termite colonies

A

alates

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15
Q

When alates emerge from the nest at the appropriate time of year, they are also called

A

swarmers

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16
Q

Swarming flights are of interest to both PMPs and their customers because

A

they act as a warning that termites are active and present

17
Q

Individuals that develop functional reproductive systems while retaining characteristics of juvenile termites

A

neotenic

18
Q

May take over reproduction responsibilities for a termite colony in the event of a death or separation from a primary queen

A

neotenic reproductives

19
Q

What type of antennae do termites have?

A

moniliform (look like a series of beads strung together)

20
Q

The antennae of termites in North America are never

A

clubbed or bent

21
Q

Sterile termites that lack wings and most lack eyes

A

soldiers

22
Q

Fighters and defenders of a termite colony

A

soldiers

23
Q

Termites which use chemical secretions from a special gland on the head to repel on entangle prey

A

nasutiform

24
Q

Have prolonged beaks instead of mandibles

A

nasute termites

25
Q

Nasute termites are mostly found in

A

the tropics, some regions of Florida and Texas

26
Q

Have smooth mandibles

A

subterranean termites

27
Q

Have jagged mandibles

A

most dampwood and drywood termites

28
Q

Pronotum is narrower than the head

A

subterranean termites

29
Q

Pronotum as wide or wider than the head

A

most drywood and dampwood termites

30
Q

A small opening on the top of the head that secretes defensive fluids

A

fontanelle

31
Q

Has a pronounced fontanelle on the front part of its head, with two pairs of hairs on each side

A

Formosan termites

32
Q

Smooth wings without hairs, and have two heavy veins along the leading edge of the forewing

A

Eastern subterranean termites

33
Q

Wings covered with fine hairs that are visible under magnification

A

Formosan subterranean termites

34
Q

Often dusky wings that have at least three strong veins along the leading edge of the forewing

A

Drywood termites

35
Q

Shortly after their emergence and nuptial flight, the king and queen alates lose

A

their wings

36
Q

humeral suture

A

spot slightly above the point where the termite wings connect to the thorax where king and queen alates wings fall off after their nuptial flight

37
Q

The three main types of termites in North America

A

subterranean, drywood, and dampwood

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