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Mandible Maxilla Labrum - PowerPoint PPT Presentation


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Labium (“lower lip”). Labrum (“upper lip”). Mandible. Maxilla. Palp. Antenna. Pronotum (“back”) Prosternum (“belly”). Mesanotum (“back”) Mesasternum (“belly”). Femur. Tibia. Metanotum (“back”) Metasternum (“belly”). Tarsus. Cerci. Damselfly nymph.

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Presentation Transcript
slide1

Labium (“lower lip”)

Labrum (“upper lip”)

Mandible

Maxilla

Palp

Antenna

Pronotum (“back”)

Prosternum (“belly”)

Mesanotum (“back”)

Mesasternum (“belly”)

Femur

Tibia

Metanotum (“back”)

Metasternum (“belly”)

Tarsus

Cerci

slide2

Damselfly

nymph

Odonata (damsel and dragonfly) nymph characteristics

3 Anal lobes or points

Lower lip is a scoop-like structure longer than head

No visible gills

6 legs

slide7

Ephemeroptera (mayfly) nymph characteristics:

6 legs

2 or 3 cerci

Gills on abdomen

slide14

Plecoptera (stonefly) nymph characteristics

Six legs

2 cerci

Gills on thorax - none on abdomen

slide15

Adult stonefly

Plecoptera means “hinged wings”

slide16

Trichoptera (caddisfly) larvae characteristics

6 legs

Often cased (not always)

VERY small antennae

Gills on abdomen

slide20

Coleoptera (beetle) characteristics

Adults:

hardened outer wings

Relatively long hind legs

Larvae:

Hardened head capsules

6 legs

Elongated abdomens

slide21

Dytiscidae

(predaceous diving beetles)

slide22

Diptera larvae (flies) characteristics

No legs - worm-like

At least some part of the head capsule is hardened

slide23

Chironomidae (Non-biting midges)

in Order Diptera (flies)

slide26

Hemimetabolous

Nymph

Adult

slide27

larvae

pupae

adult

Holometabolous

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