BIOL 305 — Arthropoda

Arthropoda

Shared Characteristics

Ecdysis and Exuviae

Ecydsis

Exuviae

Subphyla

Phylum, Synapomorphy Chelicerata Crustacea Hexapoda Myriapoda
Segmentation Two Two, named Three Two, named
Legs Four Five or more Six Two per segment
Antennae None Two Two One
Synapomorphy Chelicerae Biramy Multi-segmented antennae

Chelicerata

Arachnida

Crustacea

Hexapoda

Insecta

Order, Synapomorphy Coleoptera Orthoptera Blattodea Lepidoptera Diptera Odonata Hymenoptera
Mouthpart Specialization Chewing Chewing Chewing Chewing or Sucking Biting, Sucking, or Absorbing Chewing Chewing
Predation Herbivores, Detritivores, Omnivores Herbivores Omnivores Herbivores or Nectivores Carnivores, Detritivores, Nectivores Carnivores Carnivores, Detritivores, Nectivores
Fore Wings Elytra sheath Yes Yes Scaled Flight wings Yes Yes
Hind Wings Sheathed flight Yes Yes Scaled Haltiers Yes Yes
Metamorphosis Complete Incomplete Incomplete Complete Complete Incomplete Complete
Disease Vectors Mosquitoes, Tsetse
Coleoptera
Orthoptera
Blattodea
Lepidoptera
Diptera
Odonata
Hymenoptera

Myriapoda

Chilopoda

Diplopoda

Disease Vectors

Ticks

Lice

Fleas

Mosquitoes

Tsetse Flies