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 Dorsal view Ventral view Class: Chilopoda • Appendagesof first body segment modified into poison fangs
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) • 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)
Return to Insecta Order Thysanura • Silverfish • Primitive unwinged insects. Three long terminal cerci (filaments)
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.
Dragonflies Damselflies Return to Insecta Order: Odonata • Dragonflies and damselflies • Long narrow bodies with long narrow membranous wings that are similar in size.
House cricket Camel Crickets Cave cricket Grasshoppers Mole cricket Return to Insecta Order: Orthoptera • Crickets and grasshoppers • Enlarged femur on third walking leg
Return to Insecta Order: Phasmida • Walking sticks • Very elongated and twig-like in appearance
Return to Insecta Order: Blattaria • Cockroaches • Oval flattened shape with the head concealed under the pronotum (shield)
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.
Return to Insecta Order: Isoptera • Termites • Distinguishable from ants by broad union of thorax and abdomen.
Return to Insecta Order: Hemiptera • True bugs • Forewings with base portion leathery, apical portion membranous. Piercing sucking mouthparts.
Return to Insecta Order: Homoptera • Cicadas, aphids, leafhoppers, scale insects • Wings held roof-like over body, piercing sucking mouthparts
¢ Ant lion larva (doodlebug) Dobsonflies Lacewing Return to Insecta Order: Neuroptera • Lacewings, ant lions, dobsonflies • Membranous wings with many cross veins
Return to Insecta Order: Coleoptera • Beetles, weevils, fireflies • Front (top) wings thick and hard
Return to Insecta Order: Lepidoptera • Butterflies and moths • Wings with overlapping scales, coiled sucking mouthparts
Return to Insecta Order Diptera • True flies • One pair of wings others modified into halteres
Return to Insecta Order: Siphonaptera • Fleas • Laterally compressed body, no wings, piercing, sucking mouth parts.
Return to Insecta Order: Hymenoptera • Ants, bees, wasps • Membranous, narrow wings coupled distally. Last slide
