Insect Biology Exam 2

2 types of insects with no metamorphosis

Springtails and Silverfish

What does primitively wingless mean and name two

types of insects with that characteristic

Ancestors didn’t have wings, and they don’t ever develop wings. Springtails and Silverfish

What is a spermatophore

An external capsule containing sperm and nutrients

Name two types of insects with incomplete

metamorphosis.

Dragonflies and Mayflies

Where do insects with incomplete metamorphosis live in immature stages

Nymphs underwater and adults on land

What types of insects form a mating wheel

Dragonflies (Order Odanta)

insects that only live hours or days as adults

Mayflies (Order Ephemeroptera)

Name two types of insects in the group Paleoptera.

Dragonflies and Mayflies

What does “Paleoptera” mean

Cannot fold wings, “old wings”

Neoptera

Can fold wings “New wings”

Are cockroaches Paleoptera or Neoptera

Neoptera

Another type of insect that’s in the same order as cockroaches

Termites and Praying Mantids

Orthoptera

Grasshopers, Crickets, Katydids

Hempiptera

Truebugs

Order Hemiptera

Gradual Metamorphosis, Feeding habits depend on species, Piercing-sucking mouthparts

Order Orthoptera

Gradual Metamorphosis, Hind legs for jumping, Live in cool, damp areas, known for making sounds, high jumpers with bad eyesight.

What is a nupital gift

It is a ball of saliva from a scorpionfly

Why does a scorpion fly give nupital gifts?

Females can be aggressive so gifts help keep male safe

To impress the female

Give the scientific name of the order in which larvae are called caterpillars.

Lepidoptera

What type of mouthparts do adult moths and butterflies have?

Siphoning Mouthparts

How can you tell the difference between a moth and butterfly?

Moths have bushy antennae while butterflies have knobbed antennae, butterflies have bright colors while moths have dark colors, Butterflies fly during the da and moths fly during the night

Name a group of insects from this lecture that’s secondarily wingless.

Order Siphonaptera (Fleas)

What type of insect can spread The Plague?

Fleas

What are halteres?

Hind wings evolutionarily modified to form these tiny organs which sense balance during flight.

Give the scientific name of the order with halteres.

Diptera

What good are maggots?

Maggots can be important decomposers

Some predators or parasitoids of insect pests

Some pollinate plants

Why are some flies called filth flies?

• Feed and lay eggs on garbage, manure, carrion and can then contaminate human foods and food preparations surfaces by landing on them

  • Can spread food posioning and dysentary