Lab12 entomology (1)
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Transcript of Lab12 entomology (1)
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University of SulaimaniaSchool of ScienceDepartment of Biology2nd Class Year
Practical Entomology 2011-2012
Lecturer: Farhad A. Khudhur
12th Lab.
Insects’ Respiratory Apparatus
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Objective
• This Lab. making the students to be familiar with different insects respiratory apparatus.
• Students must know more details about the diversity in respiratory apparatus of aquatic and terrestrial insects.
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RespirationRespiration
• Tracheae – chitinous tubesTracheae – chitinous tubes• Tracheoles – fine, intercellular tubesTracheoles – fine, intercellular tubes• Spiracles – openings of tracheaeSpiracles – openings of tracheae
– With closing deviceWith closing device– Primitively 1 lateral pair/segmentPrimitively 1 lateral pair/segment– Sometimes modifiedSometimes modified
• PiercingPiercing• TelescopingTelescoping• ““Spiracular gill”Spiracular gill”
• Body WallBody Wall– Undifferentiated integumentUndifferentiated integument– Tracheal gillsTracheal gills
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Spiracular DistributionSpiracular Distribution
– Polypneustic at least 8 pairs of spiracles (e.g., Polypneustic at least 8 pairs of spiracles (e.g., adults of terrestrial insects)adults of terrestrial insects)
– Oligopneustic – 1-2 pairs of spiraclesOligopneustic – 1-2 pairs of spiracles• Amphipneustic – 1 pr mesothorax, 1 pair post-Amphipneustic – 1 pr mesothorax, 1 pair post-
abdominal (e.g., Trichoptera: Psychodidae larvae)abdominal (e.g., Trichoptera: Psychodidae larvae)• Metapneustic – 1 pair post-abdominal (e.g., Metapneustic – 1 pair post-abdominal (e.g.,
Diptera: Culicidae larvae)Diptera: Culicidae larvae)• Propneustic – 1 pair mesothorax (e.g., dipterous Propneustic – 1 pair mesothorax (e.g., dipterous
pupae)pupae)
– Apneustic – no spiracles (e.g., Apneustic – no spiracles (e.g., Ephemeroptera and odonata larvae)Ephemeroptera and odonata larvae)
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References
• Gillot, Cedric. (2005). Entomology. 3rd ed. Springer, Dordrecht., The Netherlands. 831 pp.
• Grzimek’s Animal Life Encyclopedia, 2nd edition. Volume 3, Insects, edited by Michael Hutchins, Arthur V. Evans, Rosser W. Garrison,
• Resh, Vincent H. & Cardé, Ring T. (2003). Encyclopedia of Insects. USA. Academic Press, Elsevier Science, 1266 pp.
• Elzinga, Richard J. (1997). Fundamentals of Entomology. 4th ed. New Jersey, Prentice-Hall, Inc. 475 pp.
• Gullan, P.J. and Cranston, P.S. (). The insects: An Outline of Entomology. 3rd ed. U.K. Blackwell Publishing Ltd. 505 pp.