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External morphology of cockroach
- 1. EXTERNAL MORPHOLOGY OFCOCKROACH Guided By: Chethana R Yuvaraja’s college Presented By: Inchara R Molecular Biology 07/11/17
- 2. CONTENTS• Introduction • Classificationof cockroach • External features Head Thorax Abdomen • Conclusion • References • Acknowledgement
- 4. CLASSIFICATION OF COCKROACH PHYLUMArthropoda CLASS Insecta ORDER Blattodae GENUS Periplaneta SPECIES Americana
- 5. • Shape andsize: Body is narrow, elongated, bilaterally symmetrical and dorso-ventrally flattened. The adult measures 3-4cm in length and 2cm in width. • Colouration: The colour is shining reddish-brown. • Exoskeleton: The whole body is externally covered by brown- coloured, hard, jointed, chitinous and greasy cuticle. - Exoskeleton has hardened plates called sclerites. External Features
- 6. • Cuticle: Thisaffords protection from loss of water, provides rigidity and offers points of attachment to body muscles. • Segmentation: Its body is divided into head, thorax and abdomen. Fig 1.
- 7. Fig :2 A-Malein dorsal view. B-female in ventral view
- 8. HEAD Fig 3: (a)Headregion (b)Mouth parts
- 9. THORAX Fig 4: Thoraxregion of cockroach Fig 5: Leg part
- 10. ABDOMEN Fig 6: Abdomenregion of both Male and Female.
- 11. Fig 7: AbdomenOf Female And Male
- 13. REFERENCES • E. L.Jordan and P. S. Verma. Invertebrate zoology, S. Chand and Company Ltd., 1127pp. • www.biology4isc.weebly.com/morphology-and-antomy-of- cockroach.
- 14. ACKNOWLEDGEMENT I would liketo thank the Dept. of Molecular Biology for providing this opportunity to present this seminar. I would also like to thank my guide Chethana ma’am for her valuable guidance. Thank you one and all.