Chapter 1- Insects and Their Relatives Flashcards
What is a pest?
Competes with people for food, fiber, or space, or that
presents a threat to the health of people or domestic animals.
REF: Ch 1-Pg 1
What are arthropods?
Insects and their relatives
REF: Ch 1-Pg 1
T or F: All arthropods are invertebrates (no backbone)?
True
REF: Ch 1-Pg 1
What are the structural features of insects?
- Segmented external covering (exoskeleton)
- Paired, jointed legs
- Other appendages
REF: Ch 1-Pg 1
Examples of arthropods other
than insects?
- Mites
- Ticks
- Spiders
- Centipedes
- Millipedes
- Scorpions
REF: Ch 1-Pg 1
What are some other groups of arthropods?
- Insects
- Arachnids (mites, ticks, spiders)
REF: Ch 1-Pg 1
Explain how to distinguish insects from other arthropods?
- 3 region body (head, thorax, abdomen)
- 3 Pairs of legs attached to thorax
- Wings
- Antennae (1 pair on head)
REF: Ch 1-Pg 2- Table:1
What characteristics of Arachnid body?
- 2 region body (head fused to thorax) and abdomen
- 4 pairs legs attached to head
- No wings
- No antennae
REF: Ch 1-Pg 2- Table:1
What is simple metamorphosis?
3 stages (egg, nymph, adult)
REF: Ch 1-Pg 3- Fig 2
What is complete metamorphosis?
4 stages (egg, larva, pupa, adult)
REF: Ch 1-Pg 3- Fig 3
What is the damage arthropod pests cause?
-Feed on stored products
-Contaminate raw and processed commodities
-Weaken structural timbers
-Damage furniture, carpeting, and clothing
-Carry pathogens that cause disease in people and
animals
-Cause anxiety and reduce quality of life
REF: Ch 1-Pg 4