PMT 106 Entomology Units 3 and 4 questions with answers

PMT 106 Entomology Units 3 and 4 questions
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with answers |\




*Ants Key Features*: General Description - CORRECT ANSWERS
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✔✔Head: *Elbowed antennae* with the last few segments
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forming a "club"; well-developed mandibles
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Thorax: Reproductive forms have *two pair of unequal sized
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wings* (front wings are larger)
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Abdomen: *Constricted, distinct "waist"* called a pedicel (nodes)
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Complete metamorphosis (Ants) - CORRECT ANSWERS ✔✔Ants
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undergo ___ metamorphosis. |\ |\




Castes (caste system) - CORRECT ANSWERS ✔✔Ants are social
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insects, with a social structure built on specialized ___.
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Male ants - CORRECT ANSWERS ✔✔May or may not have wings.
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Presence of wings is dependent upon the species and the
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developmental level of the colony. ___ ants are only present in a |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


colony for mating. Once mated, the ___ dies.
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Queen ants - CORRECT ANSWERS ✔✔Wings are usually present
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and are lost after mating. The primary function of ___ ants are
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mating and reproduction.
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,Some species will have multiple ___ ants in one ant colony
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(polygyny).


Worker ants - CORRECT ANSWERS ✔✔Sterile, female ants without
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reproductive organs; usually wingless; may have different body
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forms. The primary function of ___ ants are to construct and
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repair the nest and feed immature and adult ants within the
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colony.


Soldier ants - CORRECT ANSWERS ✔✔Sterile female without
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reproductive organs; usually wingless; responsible for tending |\ |\ |\ |\ |\ |\ |\


and defending the colony.
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Methods of colony establishment: (3) - CORRECT ANSWERS ✔✔1.
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Swarming
2. Budding
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3. Temporary parasitism
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Swarming - CORRECT ANSWERS ✔✔Winged males as well as
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winged queens are produced. They leave colony and mate (or
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have mated within colony).
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Budding - CORRECT ANSWERS ✔✔Workers leave nest with larvae
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and pupae (queens may leave too).
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Temporary parasitism - CORRECT ANSWERS ✔✔Queen seeks|\ |\ |\ |\ |\ |\ |\


adoption by colony of another species. |\ |\ |\ |\ |\

,Thief ants - CORRECT ANSWERS ✔✔Yellow or light brown;
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antennal club with two segments. Invade other ant nests. Enter
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structures, especially during hot weather. Will contaminate food; |\ |\ |\ |\ |\ |\ |\ |\


prefer greasy materials (high in fats and protein).
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Pharaoh ants - CORRECT ANSWERS ✔✔Yellow to light brown to
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reddish; antennal club with three segments. Nest in warm, often
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inaccessible areas (e.g., within pipes, insulation, walls of |\ |\ |\ |\ |\ |\ |\ |\


cardboard boxes, etc.) Can contaminate surgical dressings. Prefer
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to feed on sweets, meats, greases and oils.
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Common household pests; they feed on starchy materials and
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can often be found in old books, packing materials, and other
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areas with easy access to those materials.
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Represent two closely related species in the insect *Order |\ |\ |\ |\ |\ |\ |\ |\ |\


Thysanura* - CORRECT ANSWERS ✔✔Silverfish |\ |\ |\ |\




Firebrats


Features of Silverfish and Firebrats - CORRECT ANSWERS ✔✔*1.
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No metamorphosis (Ametabolous)*
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2. Eggs laid singly in groups of 2 or 3
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3. Mature in 3 months to 3 years
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4. May molt 50 times or more
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Warm, humid environments |\ |\

, Eastern U.S. - CORRECT ANSWERS ✔✔*Silverfish* have a silver-
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colored sheen to their bodies. They tend to be found in ___, ___
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environments and are most common in the ___ ___. |\ |\ |\ |\ |\ |\ |\ |\




Hot, dry environments
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Southwest U.S. - CORRECT ANSWERS ✔✔*Firebrats* are grayish
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in color and will typically have darker areas on their bodies. They
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tend to be found in ___, ___ environments and are most common
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in the ___ ___.
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Earwigs - CORRECT ANSWERS ✔✔Commonly found outdoors and
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occasionally may be found indoors; however, they are not |\ |\ |\ |\ |\ |\ |\ |\ |\


considered important as household pests. |\ |\ |\ |\




Gradual metamorphosis (Earwigs) - CORRECT ANSWERS
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✔✔Earwigs undergo ___ metamorphosis. |\ |\ |\




Control of Ants: *General Considerations* - CORRECT ANSWERS
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✔✔*1. Perform surveillance to characterize the infestation and
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help plan control.*
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2. Identify ant by means of survey; bait suspected areas of
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infestation and attempt to follow ants to nest. |\ |\ |\ |\ |\ |\ |\




3. Killing exposed workers will offer only temporary relief.
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Control of Ants: *Cultural Control* - CORRECT ANSWERS ✔✔*1.
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Good sanitation is best approach in ant control.*
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