5a abdomen

21
INSECT ABDOMEN

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Page 1: 5a Abdomen

INSECT ABDOMEN

Page 2: 5a Abdomen

primary segment

secondary segment

Insect Abdomen - segmentation

Page 3: 5a Abdomen

Insect Abdomen

tergum

sternum

pleural membrane

Page 4: 5a Abdomen

T5 T6T7 T8

T9T10

T11

cerci

cerci

Insect abdomen - Primary appendages

paraproct

epiproct

Page 5: 5a Abdomen

Insect abdomen - Primary appendages

Cerci

Page 6: 5a Abdomen

Insect abdomen - Primary appendages

Cerci - modfied as claspers

Male Odonata

Page 7: 5a Abdomen

Insect abdomen - Primary appendages

Cerci - modfied as claspers

Male Phasmida(stick insects)

Page 8: 5a Abdomen

Insect abdomen - Primary appendages

Cerci - modfied as caudal gills

Odonata Larvae

Page 9: 5a Abdomen

Insect abdomen - Secondary appendages

Abdominal gills - in aquatic larvae

Ephemeroptera

Trichoptera

Megaloptera

Page 10: 5a Abdomen

Insect abdomen - Secondary appendages

Prolegs - Lepidoptera larvae

Prolegs

Page 11: 5a Abdomen

Development of Genitalia

Page 12: 5a Abdomen
Page 13: 5a Abdomen

Insect Abdomen - Generalized Female Genitalia

gonostyle (gonoplac)

gonapophysis 8

gonapophysis 9

gonocoxite 9gonocoxite 8

gonapophysis 9gonapophysis 8

gonostyle (gonoplac)gonapophysis 9

gonapophysis 8gonocoxite 9

gonocoxite 8gonopore

cercus

anus

Page 14: 5a Abdomen

Variations on a theme!

Page 15: 5a Abdomen

Katydid ovipositor

Page 16: 5a Abdomen

Other Modifications for Oviposition

Diptera - Musca

Page 17: 5a Abdomen

Ichneumon wasp ovipositor

Page 18: 5a Abdomen

Hymenoptera - Stinger

Page 19: 5a Abdomen

Hymenoptera - Stinger

gonoplac

Tergum 9

first gonapophysis (lancet)

second gonapophysis (stylet)

Page 20: 5a Abdomen

Hymenoptera - Stinger

stylet

lancet

Poison canal

lancet

Page 21: 5a Abdomen

Insect Abdomen - Generalized Male Genitalia

cercus

anus

gonostylus

gonocoxa

aedeagus