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Phylum Arthropoda. Subphylum Uniramia. Subphylum Uniramia. Class: Diplopoda (dip-lop-o-da) Millipedes Class: Chilopoda (ki-lop-o-da) Centipedes Class: Insecta (in-sect-a) Insects. Class: Diplopoda. Note two pair of appendages per somite. Return to Uniramia. House centipedes.

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Phylum Arthropoda

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phylum arthropoda

Phylum Arthropoda

Subphylum Uniramia

subphylum uniramia
Subphylum Uniramia
  • Class: Diplopoda (dip-lop-o-da)
    • Millipedes
  • Class: Chilopoda (ki-lop-o-da)
    • Centipedes
  • Class: Insecta (in-sect-a)
    • Insects
class diplopoda
Class: Diplopoda
  • Note two pair of appendages per somite

Return to Uniramia

class chilopoda



Dorsal view

Ventral view

Class: Chilopoda
  • Appendagesof first body segment modified into poison fangs
class insecta
Class Insecta
  • Head, thorax, and abdomen distinct. Typically with two pair of wings
  • Order: Thysanura (silverfish)
  • Order: Ephemeroptera (mayflies)
  • Order: Odonata (dragonflies and damselflies)
  • Order: Orthoptera (crickets and grasshoppers)
  • Order: Phasmida (walking sticks)
  • Order: Blattaria (cockroaches)
  • Order: Mantodea (praying mantids)
  • Order: Isoptera (termites)
insecta orders continue
Insecta (orders continue)
  • Order: Hemiptera (true bugs)
  • Order: Homoptera (cicadas, aphids, leafhoppers, scale insects)
  • Order: Neuroptera (lacewings, ant lions, dobsonflies)
  • Order: Coleoptera (beetles, weevils, fireflies)
  • Order: Lepidoptera (butterflies and moths)
  • Order: Diptera (true flies)
  • Order: Siphonaptera (fleas)
  • Order: Hymenoptera (ants, bees, wasps)
order thysanura

Return to Insecta

Order Thysanura
  • Silverfish
    • Primitive unwinged insects. Three long terminal cerci (filaments)
order ephemeroptera

Return to Insecta

Order: Ephemeroptera
  • Mayflies
    • The forewings are much larger than the hind wings, note the two long cerci on the last abdominal segment.
order odonata



Return to Insecta

Order: Odonata
  • Dragonflies and damselflies
    • Long narrow bodies with long narrow membranous wings that are similar in size.
order orthoptera

House cricket

Camel Crickets

Cave cricket


Mole cricket

Return to Insecta

Order: Orthoptera
  • Crickets and grasshoppers
    • Enlarged femur on third walking leg
order phasmida

Return to Insecta

Order: Phasmida
  • Walking sticks
    • Very elongated and twig-like in appearance
order blattaria

Return to Insecta

Order: Blattaria
  • Cockroaches
    • Oval flattened shape with the head concealed under the pronotum (shield)
order mantodea

Egg case

Return to Insecta

Order: Mantodea
  • Prey Mantids
    • Modified front legs with front femora and tibiae are armed with strong spines and fitted for grasping prey.
order isoptera

Return to Insecta

Order: Isoptera
  • Termites
    • Distinguishable from ants by broad union of thorax and abdomen.
order hemiptera

Return to Insecta

Order: Hemiptera
  • True bugs
    • Forewings with base portion leathery, apical portion membranous. Piercing sucking mouthparts.
order homoptera

Return to Insecta

Order: Homoptera
  • Cicadas, aphids, leafhoppers, scale insects
    • Wings held roof-like over body, piercing sucking mouthparts
order neuroptera


Ant lion larva




Return to Insecta

Order: Neuroptera
  • Lacewings, ant lions, dobsonflies
    • Membranous wings with many cross veins
order coleoptera

Return to Insecta

Order: Coleoptera
  • Beetles, weevils, fireflies
    • Front (top) wings thick and hard
order lepidoptera

Return to Insecta

Order: Lepidoptera
  • Butterflies and moths
    • Wings with overlapping scales, coiled sucking mouthparts
order diptera

Return to Insecta

Order Diptera
  • True flies
    • One pair of wings others modified into halteres
order siphonaptera

Return to Insecta

Order: Siphonaptera
  • Fleas
    • Laterally compressed body, no wings, piercing, sucking mouth parts.
order hymenoptera

Return to Insecta

Order: Hymenoptera
  • Ants, bees, wasps
    • Membranous, narrow wings coupled distally.

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