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The fossils assigned to the "roachoids" are of general cockroach-like build, with a large disc-like pronotum covering most of the head, long antennae, legs built for running, flattened body and heavily veined wings with the distinct arched CuP-vein so typical of modern cockroach wings. [9] Like modern cockroaches, the roachids were probably ...
Madagascar hissing cockroaches are some of the largest cockroaches in the world, often reaching up to 4 inches long! And while the term “roach” my make you squeamish, these particular insects ...
The three basic segments of the typical insect antenna are the scape or scapus (base), the pedicel or pedicellus (stem), and finally the flagellum, which often comprises many units known as flagellomeres. [10] The pedicel (the second segment) contains the Johnston's organ which is a collection of sensory cells. [11]
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) [1] and the order Mantodea (mantises). All modern Dictyoptera have short ovipositors and typically lay oothecae.
Species in this genus are 4 to 9.7 cm (1.6–3.8 in) long and can have a wingspan of up to 20 cm (8 in); the world's largest cockroach by length and wingspan is M. longipennis. [1] [2] [3] Megaloblatta, like many other insects, use stridulation in order to steer their predators away. [4]
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Attached to these spiracles are tubes called tracheae that branch throughout the body of the cockroach until they associate with each cell. [12] Oxygen diffuses across the thin cuticle and carbon dioxide diffuses out, which allows cockroaches to deliver oxygen to cells directly without relying on blood as do humans. [12]
The German cockroach (Blattella germanica), colloquially known as the croton bug, is a species of small cockroach, typically about 1.1 to 1.6 cm (0.43 to 0.63 in) [1] [2] long. In color it varies from tan to almost black, and it has two dark, roughly parallel, streaks on the pronotum running anteroposteriorly from behind the head to the base of ...