Cockroach introdution

Cockroach

Group of insects

                Cockroaches are insects of the order Blattodea, which are also includes termites. Out of 4,600 cockroach species 30 are associated with human habitats. In this four species are well known as pest.

Classification Of Cockroach

Kingdom – Animalia

Phylum – Arthropoda

Class – Insecta

Superorder – Dictyoptera

Order – Blattodea

                 Under the order there are many families of cockroach which are as follows –

1] Blaberidae

2] Blattidae

3] Corydiidae

4] Cryptocercidae

5] Ectobiidae

6] lamproblattidae

7] Nocticolidae

8] Tryonicidae

Some information about the cockroaches

                The group of cockroaches are very ancient, about they are from carboniferous period. Approximately 320 million yrs. ago they are evolved. Cockroaches are generalized insects without special adaptions like sucking mouth parts of aphids and other bugs. They have chewing mouth parts and are likely amoung the most primitive living Neopteron insects. The cockroaches can tolerate wide range of environment from arctic cold to the tropical heat region. Tropical cockroaches are often much bigger than temperate species, and, contrary to popular belief, extinct cockroach relatives (Blattoptera) and 'roachoids' such as the Carboniferous Archimylacris and the Permian Apthoroblattina were not as large as the biggest modern species.

                 Some species, such as the gregarious German cockroach, have an elaborate social structure involving common shelter, social dependence, information transfer and kin recognition. Cockroaches have appeared in human culture since classical antiquity. They are popularly depicted as dirty pests, though the great majority of species are inoffensive and live in a wide range of habitats around the world.

 

Chewing mouth of cockroach

Mouth parts of cockroach