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Common Insect Orders Adapted from Berkeley Natural History Museums lesson A Quick Way to Identify Common Insect Orders.

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Presentation on theme: "Common Insect Orders Adapted from Berkeley Natural History Museums lesson A Quick Way to Identify Common Insect Orders."— Presentation transcript:

1 Common Insect Orders Adapted from Berkeley Natural History Museums lesson A Quick Way to Identify Common Insect Orders

2 Insects are the most species- rich group of organisms on earth as indicated in this species-scape. The size of the organism reflects the number of described species.

3 Parts of an insect

4 HeadThorax Abdomen

5 Parts of an insect HeadThorax Abdomen 3 pairs of legs

6 Parts of an insect HeadThorax Abdomen 3 pairs of legs Wings and legs on thorax

7 Important areas to study to identify common insect orders HeadThorax Abdomen 3 pairs of legs

8 Mouthparts: Chewing mandibles

9 Mouthparts: Piercing Sucking Sponging-sucking Coiled

10 Orthoptera (grasshoppers, crickets, katydids) Greek "ortho" = straight, "ptera" = wing Spot ID Jumping legs parallel-sided structure of front wings

11 Orthoptera (grasshoppers, crickets, katydids) Greek orthos = straight, pteros = wing

12 Orthoptera (grasshoppers, crickets, katydids)

13 Spot ID Jumping hind legs

14 Orthoptera (grasshoppers, crickets, katydids) Spot ID Jumping hind legs Some with ovipositor at hind end

15 Coleoptera (beetles) Greek koleos= sheath, ptero= wing

16 Coleoptera (beetles)

17 Spot ID Chewing mouthparts

18 Coleoptera (beetles) Spot ID Chewing mouthparts Forewings (elytra) form hard shell covering hindwings

19 Lepidoptera (butterflies, moths) Greek lepido= scale, ptero= wing

20 Coiling-sucking mouthparts

21 Lepidoptera (butterflies, moths) Greek lepido= scale, ptero= wing Coiling-sucking mouthparts Four wings covered with scales

22 Diptera (flies) Latin di= two, ptero= wing

23 Spot ID Two wings

24 Diptera (flies) Latin di= two, ptero= wing Spot ID Two wings –Hind wings reduced to halteres

25 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

26 Diptera (flies) Latin di= two, ptero= wing

27 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

28 Hymenoptera (bees, wasps, ants)

29 Spot ID Chewing mouthparts

30 Hymenoptera (bees, wasps, ants) Spot ID Chewing mouthparts Four membranous wings

31 Hymenoptera (bees, wasps, ants) Spot ID Chewing mouthparts Four membranous wings Waist often constricted

32 Hymenoptera (bees, wasps, ants) Spot ID Chewing mouthparts Four membranous wings Waist often constricted Females with ovipositor or stinger at end of abdomen

33 Hemiptera (true bugs, also sometimes called Heteroptera) Greek hemisys = half, ptero = wing

34 Hemiptera (true bugs) Greek hemisys = half, ptero = wing Spot ID A beak: piercing-sucking mouthparts

35 Hemiptera (true bugs) Greek hemisys = half, ptero = wing Spot ID A beak: piercing-sucking mouthparts Forewings covering hindwings –Wing half membrane, half thickened

36 Homoptera (hoppers, aphids, scales, cicadas) Greek homo = uniform, ptero = wing Spot ID A beak: piercing-sucking mouthparts Forewings covering hindwings –Wings all membranous

37 Homoptera (hoppers, aphids, scales, cicadas) Greek homo = uniform, ptero = wing Some 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.

38 Dermaptera (earwigs) Greek derma = skin, ptero = wing

39 Spot ID Long skin-like hindwings folded under very short forewings

40 Dermaptera (earwigs) Greek derma = skin, ptero = wing Spot ID Long skin-like hindwings folded under very short forewings Pinchers off end of abdomen

41 Odonata (dragonflies, damselflies) Greek odon = tooth (referring to teeth on their mandibles)

42 Odonata (dragonflies, damselflies)

43 Spot ID Long slender wings

44 Odonata (dragonflies, damselflies) Spot ID Long slender wings Long thin body

45 Isoptera (termites) Greek "iso" = equal, "ptera" = wings Spot ID Pale, elongate body 2 pairs of membranous wings of equal length only present in reproductives and shed after mating Mandibulate (chewing) mouthparts Antennae about the same length as the head Sometimes now classified with Blattodea because their DNA suggests that they are specialized roaches

46 Blattodea (roaches) Latin blatta = cockroach

47 Blattodea (roaches)

48 Spot ID Flat

49 Blattodea (roaches) Spot ID Flat Spiny legs

50 Blattodea (roaches) Also called Blattaria, Greek Blatta = cockroach Spot ID Flat Spiny legs Long antennae

51 Neuroptera (ant lions, lacewings, mantidflies) Greek "neuron" = nerve and "ptera" = wings Spot ID four membranous net- veined wings forewings and hindwings about the same size

52 Neuroptera (ant lions, lacewings, mantidflies) Greek "neuron" = nerve and "ptera" = wings Spot ID Larvae have elongated mandibles adapted for piercing and sucking Oliver the Owlfly larva is an example Antlion larvae (doodlebugs)

53 Mantodea (praying mantises) Greek mantis = prophet Spot ID two grasping, spiked forelegs often held in praying position Triangular, swiveling head with large compound eyes

54 Phasmatodea (walking stick insects) Also Phasmida, Greek phasm = phantom Spot ID cylindrical stick-like body or flattened, leaflike shape long, slender antennae sometimes have wings

55 Thysanura (silverfish, bristletails) Greek "thysano-" = fringed, "ura" = tail Spot ID three long caudal (tail) filaments Silverfish are so called due to the silvery glitter of the scales covering their bodies flattened bodies, may be elongated or oval in shape

56 Ephemerida (mayflies) Also Ephemeroptera, Greek "ephemera" =short-lived Spot ID delicate bodies and gauzy, fragile wings two or three long threads (caudal filaments) at end of abdomen Adults have no functional mouthparts

57 Plecoptera (stoneflies) Greek "pleco" = braided, "ptera" = wing Spot ID complex venation of two pairs of wings, which are membranous and fold flat over the back legs each end in two claws long, multi-segmented antennae

58 Mecoptera (scorpionflies) Greek meco- = long, ptera = wings Spot ID abdomen is cylindrical, and typically curves upwards in the male, superficially resembling the tail of a scorpion wings are narrow in shape, with numerous cross-veins

59 Trichoptera (caddisflies) Greek trich = hair, ptera = wing Spot ID small moth-like with two pairs of hairy membranous wings Aquatic larvae, adults usually found near aquatic habitats

60 Siphonaptera (fleas) Greek "siphon = tube or pipe, "aptera" = wingless Spot ID Wingless (adaptation to ectoparasitism) 1-10mm long Mouthparts are sucking and piercing Hind legs are enlarged for jumping Laterally flattened

61 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

62 Some Common Insects


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