common insect orders adapted from berkeley natural history museums lesson “a quick way to identify...
DESCRIPTION
Parts of an insectTRANSCRIPT
Common Insect Orders
Adapted from Berkeley Natural History Museums lesson “A Quick Way to Identify Common Insect Orders”
Parts of an insect
Parts of an insect
Head Thorax Abdomen
Parts of an insect
Head Thorax Abdomen
3 pairs of legs
Parts of an insect
Head Thorax Abdomen
3 pairs of legsWings and legs on thorax
Important areas to study to identify common insect orders
Head Thorax Abdomen
3 pairs of legs
Mouthparts:Chewing
mandibles
mandibles
Mouthparts:
Piercing
Sucking
Sponging-sucking
Coiled
Orthoptera (grasshoppers, crickets, katydids) Greek "ortho" = straight, "ptera" = wing
Spot ID• Jumping legs• parallel-sided structure
of front wings
Orthoptera (grasshoppers, crickets, katydids)
Greek “orthos” = straight, “pteros” = wing
Orthoptera (grasshoppers, crickets, katydids)
Orthoptera (grasshoppers, crickets, katydids)
Spot ID• Jumping hind legs
Orthoptera (grasshoppers, crickets, katydids)
Spot ID• Jumping hind legs• Some with ovipositor at hind
end
Coleoptera (beetles)Greek “koleos”= sheath, “ptero”= wing
Coleoptera (beetles)
Coleoptera (beetles)
Spot ID• Chewing mouthparts
Coleoptera (beetles)
Spot ID• Chewing mouthparts• Forewings (elytra)
form hard shell covering hindwings
Lepidoptera (butterflies, moths)Greek “lepido”= scale, “ptero”= wing
Lepidoptera (butterflies, moths)Greek “lepido”= scale, “ptero”= wing
• Coiling-sucking mouthparts
Lepidoptera (butterflies, moths)Greek “lepido”= scale, “ptero”= wing
• Coiling-sucking mouthparts• Four wings covered with scales
Diptera (flies)Latin “di”= two, “ptero”= wing
Diptera (flies)Latin “di”= two, “ptero”= wing
Spot ID• Two wings
Diptera (flies)Latin “di”= two, “ptero”= wing
Spot ID• Two wings
– Hind wings reduced to halteres
Diptera (flies)Latin “di”= two, “ptero”= wing
Spot ID• Two wings
– Hind wings reduced to halteres
• Sponging-sucking mouthparts– Except mosquitoes
and some others that pierce skin
Diptera (flies)Latin “di”= two, “ptero”= wing
Hymenoptera (bees, wasps, ants)
Greek “hymen”=membrane, “ptero”=wing or
Hymen, the Greek god of marriage because the forewing & hindwings are joined
together with small hooks
Hooks not shown
Hymenoptera (bees, wasps, ants)
Hymenoptera (bees, wasps, ants)Spot ID• Chewing mouthparts
Hymenoptera (bees, wasps, ants)Spot ID• Chewing mouthparts• Four membranous wings
Hymenoptera (bees, wasps, ants)Spot ID• Chewing mouthparts• Four membranous wings• Waist often constricted
Hymenoptera (bees, wasps, ants)Spot ID• Chewing mouthparts• Four membranous wings• Waist often constricted• Females with ovipositor or
stinger at end of abdomen
Hemiptera (true bugs, also sometimes called Heteroptera)
Greek “hemisys” = half, “ptero” = wing
Hemiptera (true bugs)
Greek “hemisys” = half, “ptero” = wingSpot ID• A beak: piercing-sucking mouthparts
Hemiptera (true bugs)
Greek “hemisys” = half, “ptero” = wingSpot ID• A beak: piercing-sucking mouthparts• Forewings covering hindwings
– Wing half membrane, half thickened
Homoptera (hoppers, aphids, scales, cicadas)
Greek “homo” = uniform, “ptero” = wingSpot ID• A beak: piercing-sucking mouthparts• Forewings covering hindwings
– Wings all membranous
Homoptera (hoppers, aphids, scales, cicadas)
Greek “homo” = uniform, “ptero” = wingSome entomologists now combine Order
Homoptera with Order Hemiptera because the DNA has been found to be similar. In this case, Homoptera would be considered a suborder.
Neuroptera (ant lions, lacewings, mantidflies)
Greek "neuron" = nerve and "ptera" = wingsSpot ID• four membranous net-
veined wings• forewings and
hindwings about the same size
Neuroptera (ant lions, lacewings, mantidflies)
Greek "neuron" = nerve and "ptera" = wingsSpot ID• Larvae have elongated
mandibles adapted for piercing and sucking
• Oliver the Owlfly larva is an example
• Antlion larvae (doodlebugs)
Thysanoptera (thrips)Greek "thysano-" = fringed, “ptera" = wing
• Very small insects with a range of 1/32 to 1/8 inch in length
• Feed on plants, considered crop pest