DICTYOPTERA – MANTIDAE DICTYOPTERA Synonyms

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DICTYOPTERA – MANTIDAE DICTYOPTERA Synonyms DICTYOPTERA – MANTIDAE DICTYOPTERA Synonyms : Oothecaria, Blattiformia Etymology : Dictyon - net work; ptera - wings Common names : Cockroaches and preying mantids. Characters Head is hypognathous. Antenna is filiform. Mouthparts are chewing type. Tarsus is five segmented. Forewings are more on less thickened, leathery with a marginal costal vein. They are called tegmina. Hindwings are large, membranous and folded fanlike and kept beneath the forewings. Cerci are short and many segmented. Eggs are contained in an ootheca. Classification Dictyoptera is divided into two suborders viz., Blattaria (cockroaches) and Mantodea (preying mantids). There are two important families viz., Blattidae and Mantidae Blattidae Mantidae 1. Head is not mobile in all directions Head is mobile in all directions 2. Head is hidden by the pronotum Pronotum does not cover the head 3. Two fenestrae (dagenerated ocelli sensitive Three ocelli are present to light) occur in the place of ocelli 4. Pronotum is shield like Pronotum is elongate 5. Legs are cursorial and are adapted for Forelegs are raptorial middle and hindlegs running suited for walking 6. Gizzard is powerfully armed with chitinous Chitinous teeth are absent in gizzard teeth to grind food 7. Female does not devour the male during Often (but not always) devours the male mating during mating 8. Eggs are laid inside a chitinous ootheca Eggs are enclosed in filled solidfied foam Ootheca is not chitinous. 9. Nymphs are not cannibalistic Nymphs are cannibalistic 10 No mimicry is found Mimic leaves and flowers 11. Omnivorous Carnivorous 12. Found in household, dead wood, litter etc. Found mostly outdoors 13. Economic importance: They feed on food Economic importance: They are predators stuff, clothes and paper. They impart a foul on moths, flies, grasshoppers, cater- pillars, smell to the food by contaminating with etc. Hence they are beneficial. excreta. Hence they are harmful. 14. Important species: Important species: American cockroach Mantis religiosa Periplanata americana .
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