Cockroach & Roachoid - Unionpedia, the concept map

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Difference between Cockroach and Roachoid

Cockroach vs. Roachoid

Cockroaches (or roaches) are insects belonging to the order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known pests. The cockroaches are an ancient group, with their ancestors, known as "roachoids", originating during the Carboniferous period, some 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking mouthparts of aphids and other true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of climates, from Arctic cold to tropical heat. Tropical cockroaches are often much larger than temperate species. Modern cockroaches are not considered to be a monophyletic group, as it has been found based on genetics that termites are deeply nested within the group, with some groups of cockroaches more closely related to termites than they are to other cockroaches, thus rendering Blattaria paraphyletic. Both cockroaches and termites are included into Blattodea. 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 large, dirty pests, although the majority of species are small and inoffensive and live in a wide range of habitats around the world. "Roachoids", also known as "Roachids", "Blattoids" or Eoblattodea, are members of the stem group of Dictyoptera (the group containing modern cockroaches, termites and praying mantises).

Antenna (biology)

Antennae (antenna), sometimes referred to as "feelers", are paired appendages used for sensing in arthropods.

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Blattodea

Blattodea is an order of insects that contains cockroaches and termites.

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Carboniferous

The Carboniferous is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period Ma (million years ago) to the beginning of the Permian Period, Ma.

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Cretaceous

The Cretaceous is a geological period that lasted from about 145 to 66 million years ago (Mya).

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Dictyoptera

Dictyoptera (from Greek δίκτυον diktyon "net" and πτερόν pteron "wing") is an insect superorder that includes two extant orders of polyneopterous insects: the order Blattodea (termites and cockroaches together) and the order Mantodea (mantises).

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Jurassic

The Jurassic is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya.

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Mantis

Mantises are an order (Mantodea) of insects that contains over 2,400 species in about 460 genera in 33 families.

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Megaloblatta longipennis

Megaloblatta longipennis is a species of cockroach in the family Ectobiidae.

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Ootheca

An ootheca (oothecae) is a type of egg capsule made by any member of a variety of species including mollusks (such as Turbinella laevigata), mantises, and cockroaches.

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Ovipositor

The ovipositor is a tube-like organ used by some animals, especially insects, for the laying of eggs.

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Paraphyly

Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages.

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Termite

Termites are a group of detritophagous eusocial insects which consume a wide variety of decaying plant material, generally in the form of wood, leaf litter, and soil humus.

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