Arthrppods
Download
1 / 17

ARTHRPPODS - PowerPoint PPT Presentation


  • 90 Views
  • Uploaded on

ARTHRPPODS. Chapter 24. What is Entomology?. The study of insects (and their near relatives). Review of Zoological Nomenclature. Taxonomic Categories. Kingdom - Animalae Phylum - Arthropoda Class - Insecta Order - Coleoptera Family - Scarabaeidae Genus - Popillia Genus & species

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' ARTHRPPODS' - talbot


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Arthrppods

ARTHRPPODS

Chapter 24

What is Entomology?

The study of insects

(and their near relatives).


Review of Zoological Nomenclature

Taxonomic Categories

Kingdom -Animalae

Phylum - Arthropoda

Class -Insecta

Order -Coleoptera

Family -Scarabaeidae

Genus -Popillia

Genus & species

Popillia japonica Newman


Characteristics of the Phylum

Arthropoda

24.1

  • Segmented bodies (e.g., head, thorax, abdomen).

  • Paired appendages (e.g., legs, antennae) are jointed.

  • Chitinousexoskeletion that must be shed.

  • Bilateral symmetry.

  • The nervous system is dorsal (belly) and the circulatory system is open and ventral (back).


Arthropod e xoskeletons
Arthropod Exoskeletons

  • Joints are made of stiff and flexible cuticle to allow movement.

  • The exoskeleton is made of many layers of chitin.

    • hard material that protects the body

    • must be shed in order to grow


Arthropod Classification

  • Chelicerates—specialized dagger-like

    mouthparts

  • Insects—most live on land, have six legs

  • Myriapods—long bodies and many pairs of legs


Crustaceans marine arthropods
Crustaceans(Marine Arthropods)

24.2

  • two distinct body sections, cephalothorax and abdomen

  • one pair of appendages per segment

  • two pairs of antennae

  • exoskeleton

  • carapace


Crustacean a ppendages
Crustacean Appendages

  • Crustacean appendages are used for a variety of functions.

    • collecting and manipulating food

    • attracting females

    • Protection

    • claws, antennae, walking legs, swimmerets, and mandibles.


T ypes of crustaceans
Types of Crustaceans.

  • Decapods such as lobsters and crabs have ten legs.

  • Isopods such as pill bugs

  • have flattened bodies

  • and seven pairs of legs.

  • Barnacles are sessile filter

  • feeders wrapped in a hard shell.


fangs

poison gland

spinnerets

Chelicerate Arthropod Characters:

  • Pincher-like mouthparts - chelicerae

  • NO antennae

  • Two body regions, usually - cephalothorax & abdomen

  • Four pairs of legs

  • Horseshoe crabs and arachnids are only living groups

24.3


Arachnids are the largest group of chelicerates
Arachnids are the largest group of chelicerates.

  • There are three major groups of chelicerates.

    • horseshoe crabs

    • sea spiders

    • arachnids


Arachnids spiders
Arachnids -- Spiders

  • All spiders make silk and produce venom.


Metamorphosis
Metamorphosis

CHANGE IN FORM FROM EGG TO ADULT


Incomplete
Incomplete

INCOMPLETEMETAMORPHOUS

Insects change shape gradually!


CompleteMetamorphosis

Four stages that all look different


Insects with complete metamorphosis
Insects with Complete Metamorphosis

  • beetles

  • bees, ants, wasps

  • Flies

  • butterflies

EGG  LARVA  PUPA  ADULT


Insects with incomplete metamorphosis
Insects with Incomplete Metamorphosis

EGG  NYMPH  ADULT

  • fleas

  • grasshoppers & crickets

Wings NOT fully developed


ad