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Arthropod Classification

Arthropod Classification. Classification. Convenient and useful way of communication Reflects the historical relationships among species Hierarchical system: groups within groups. Hierarchy of Classification. KINGDOM PHYLUM CLASS ORDER FAMILY GENUS SPECIES. Hierarchy of Taxonomic

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Arthropod Classification

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  1. Arthropod Classification

  2. Classification • Convenient and useful way of communication • Reflects the historical relationships among species • Hierarchical system: groups within groups

  3. Hierarchy of Classification KINGDOM PHYLUM CLASS ORDER FAMILY GENUS SPECIES

  4. Hierarchy of Taxonomic Categories • Kingdom • Phylum • Subphylum • Superclass • Class • Subclass • Cohort • Superorder • Order • Suborder • Superfamily (-oidea) • Family (-idae) • Subfamily (-inae) • Tribe (-ini) • Genus • Subgenus • Species/Specific Epithet • Subspecies

  5. Can you classify yourself? Kingdom: Phylum: Class: Order: Family: Genus: Species/Specific Epithet:

  6. KINGDOM Monera Protista Fungi Plantae Animalia

  7. PHYLUM Animalia Chordata Arthropoda Primate

  8. CLASS Primate Mammalia Hominidae

  9. ORDER Primates Humane Hominidae

  10. FAMILY Sapiens Homo Hominidae

  11. Classification of Humans Kingdom: Animalia (animal) Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species/Species Epithet: sapiens

  12. Classification of the house fly Kingdom: Animalia (animal) *** Phylum: Arthropoda *** Class: Insecta Order: Diptera Family: Muscidae Genus: Musca Species/Specific Epithet: domestica

  13. Human Bee Kingdom: Animalia Animalia Phylum: Chordata Arthropoda Class: Mammalia Insecta Order: Primates Hymenoptera Family: Hominidae Apidae Genus:Homo Apis Species:sapiens mellifera

  14. Phylum ARTHROPODA(Arthros = joint, poda = feet) • Bilateral Symmetry • Jointed appendages • Exoskeleton • Segmented body • Specialized appendages

  15. Classes of Arthropods • Crustacea • Arachnida • Chilopoda • Diplopoda • Insecta

  16. How to identify arthropods? • Number of body segments • Number of legs • Number of antennae • Unique body structures

  17. Class CRUSTACEA Characters: • 2-3 body segments • 2 pairs of antennae • 5-7 pairs of legs • Orders: • Decapoda • Isopoda

  18. Phylum Arthropoda Class CrustaceaOrder DECAPODA (Crab, lobster and shrimp) Characters: • 2 body regions Cephalothorax and Abdomen • 2 pairs of antennae • 5 pairs of legs • Marine habitat

  19. Phylum Arthropoda Class CrustaceaOrder ISOPODA (Sowbugs, pillbugs, and roly-poly) Characters: • 3 body regions Head, thorax and Abdomen • 2pairs of antennae • 7 pairs of legs • Terrestrial

  20. Class ARACHNIDA (Spiders, scorpions, mites, ticks) Characters: • 2 body regions Cephalothorax and Abdomen • NO antennae • 4 pairs of legs • Terrestrial

  21. Phylum Arthropoda Class Arachnida Order ARANEAE • Abdomen strongly constricted at base • 4 pairs of legs • Relatively large

  22. Phylum Arthropoda Class Arachnida Order ACARI • Abdomen broad at the base • 4 pairs of legs • Relatively small

  23. Phylum Arthropoda Class Arachnida Order Scorpiones • Abdomen segmented with stinger • 4 pairs of legs • Pedipalps very large and claw-like

  24. Class CHILOPODA(Centipedes) Characters: • 2 body segments Head and Trunk • 1 pair of antennae • 1 pair of legs per segment • Terrestrial

  25. Class DIPLOPODA (Millipedes) Characters: • 2 body segments Head and Trunk • 1 pair of antennae • 2 pairs of legs per segment • Terrestrial

  26. Class INSECTA General Characters: • 3 body segments Head, Thorax, Abdomen • 1 pair of antennae • 3 pairs of legs • Presence of wings • Habitat – Terrestrial - Aquatic

  27. Why do some insects not have wings? • Primitive insect • Immature insect • Secondarily wingless

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