Periplaneta Americana

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PERIPLANETA AMERICANA



CLASSIFICATION:

PHYLUM ARTHROPODA (Jointed legs).

SUB-PHYLUM: UNIRAMIA (single branch appendage).

CLASS: INSECTA (3 pair of jointed legs).


COMMENTS:

•Commonly called as cockroach.

Body reddish brown in colour measuring 2.5cm in length.

• Body elongated, bilaterally symmetrical & dorsoventrally flattened.

•Body differentiated into dorsal & ventral surface & divided into head, thorax & abdomen.

• Head is slightly movable containing a pair of antennae & compound eyes.

•Thorax divisible into prothorax, mesothorax and metathorax. Thorax contains 3 pairs of walking legs, a pair of anterior forewing & a pair of posterior hindwings.

•Abdomen contains 10 segments. Male & female cockroaches are distinguised by appendages in 10th abdominal segments.

•Male has a pair of segmented anal cerci & a pair of segmented anal styles in 10th abdominal segment.

•Female cockroach has anal cerci & ovipositor valves.



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