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Phylum Arthropoda Subphylum 4 Uniramia ‘DIC’ or ‘CID’ Class Chilopoda Class Diplopoda Class Insecta Which on PowerPoint Presentation
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Phylum Arthropoda Subphylum 4 Uniramia ‘DIC’ or ‘CID’ Class Chilopoda Class Diplopoda Class Insecta Which one has most legs per segment?. Subphylum 4 Uniramia. Rounded head with no obvious jaws as it is a deposit feeder. Class Diplopoda 2 pairs of legs/segment. Class Chilopoda

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Presentation Transcript
slide1

Phylum

Arthropoda

Subphylum 4

Uniramia

‘DIC’ or ‘CID’

ClassChilopoda

ClassDiplopoda

ClassInsecta

Which one has most legs per segment?

slide2

Subphylum 4

Uniramia

Rounded head with no obvious jaws as it is a deposit feeder

ClassDiplopoda

2 pairs of legs/segment

ClassChilopoda

1pair of legs/segment

Vicious jaws of a

carnivorous predator

slide3

Suphylum 4UniramiaClass Insecta

The “bugs!”

Ah! The smell of mothballs!

slide4

Metamorphosisis the change

from a LARVAL form to…… an ADULTform

…which grows by MOLTING

..but does NOT REPRODUCE

..which does not grow (MOLT)

..but does REPRODUCE

=

slide5

Their wings have completely

G T G

HOLOMETABOLISM

T T U

T

slide6

Holometabolism

Holometabola = Endopterygota

4 ORDERS

Egg -> larvae -> pupa -> adult

Aquatic nymph

slide7

Holometabolism

  • 4 ORDERS
  • Wings on the INSIDEin the larva and must undergo acomplete metamorphosisto bring them out in the adult. This is a VERY dramatic change
slide8

DivisionEndopterygota:

HolometabolousLife Cycle4 ORDERS:

OrderHymenoptera

Bees, ants, wasps

OrderLepidoptera

Butterflies, moths

CHiLD = Bugs for decorating a nursery or a children’s picture book.

Order

Coleoptera

Beetles.

Look for “T” formed by ELYTRA

Order

Diptera

True flies

Look for HALTERES

slide9

Hemimetabolism

5 ORDERS

- Wings on the OUTSIDE in the larva already. Only need an incomplete/partial metamorphosis = (using half of the effort)to bring the insect to the mature adult stage.

slide10

Their wings are already out

W

HEMIMETABOLISM

NL U

G R T

S E

A

D

Y

slide11

Hemimetabolism

Incomplete metamorphosis Wings on the outside

Hemimetabola = Exopterygota

5 ORDERS

egg-> nymph(mini adult)-> adult

(Naiad if aquatic)

slide12

DivisionExopterygota:

HemimetabolousLife Cycle5 ORDERS:

Odonata

Hemiptera

Order

Order

Bug allies (assassin bugs, bedbugs)

Dragonflies, damselflies

Look for “X” on back

formed by wings

crossing over each

Other. True bugs.

O

H

H

I

O

Homoptera

Order

(cicadas, aphids)

Order

Isoptera

Look for “home” formed by

wings over back of insect

Termites

Orthoptera

Order

Head-on

Crickets, grasshoppers, roaches

slide14

SubphylumUniramiaClass Insecta

Hymenoptera

Lepidoptera

Hemiptera

Orthoptera

Coleoptera

slide15

Don’t forget that the fore- and hind gut portions are from ectodermally derived tissues!

Inside a Grasshopper… Remember the baseball and glove?

slide16

Phylum Arthropoda, Subphylum Uniramia,

Class Insecta, Order Orthoptera

Crop - storage

Proventriculus – grinding

= mechanical digestion

Gastric Caecum

- chemical digestion

Female has ovarioles

(looks like rice grains!)

Malpighian Tubules

- excretion

Respiratory system = Tracheal system (has spiracles etc.)