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Typically the mandibles are the largest and most robust mouthparts of a chewing insect, and it uses them to masticate (cut, tear, crush, chew) food items. Two sets of muscles move the mandibles in the coronal plane of the mouth: abductor muscles move insects' mandibles apart ( laterally ); adductor muscles bring them together ( medially ).
The largest is the dobsonfly Acanthacorydalis fruhstorferi, which can have a wingspan of up to 21.6 cm (8.5 in), making it the largest aquatic insect in the world by this measurement. [38] This species is native to China and Vietnam, and its body can be up to 10.5 cm (4.1 in) long. [39]
They are typically the largest mouthparts of chewing insects, being used to masticate (cut, tear, crush, chew) food items. They open outwards (to the sides of the head) and come together medially. In carnivorous, chewing insects, the mandibles can be modified to be more knife-like, whereas in herbivorous chewing insects, they are more typically ...
A stylus (pl.: styli or styluses [1]) is a writing utensil or a small tool for some other form of marking or shaping, for example, in pottery. It can also be a computer accessory that is used to assist in navigating or providing more precision when using touchscreens .
Pentatomidae is the largest family in the superfamily Pentatomoidea, and contains around 900 genera and over 4700 species. [ 1 ] [ 2 ] As hemipterans, the pentatomids have piercing sucking mouthparts , and most are phytophagous , including several species which are severe pests on agricultural crops .
[4] [5] The second-largest member of the genus likely is Phryganistria heusii yentuensis, with a total length of up to 52 centimetres (20 in) and a body length up to 32 centimetres (13 in). [ 2 ] [ 6 ] Another, Phryganistria tamdaoensis was selected in 2015 by the International Institute for Species Exploration as one of the "Top 10 New Species ...
Meganisoptera is an extinct order of large dragonfly-like insects, informally known as griffenflies or (incorrectly) as giant dragonflies. The order was formerly named Protodonata , the "proto-Odonata", for their similar appearance and supposed relation to modern Odonata ( damselflies and dragonflies ).
Blaberus giganteus is considered one of the largest cockroaches in the world, with males reaching lengths of up to 7.5 cm (3.0 in) and females 10 cm (3.9 in), [2] although others list 9 cm (3.5 in) as the maximum length. [3] These cockroaches are lightly built with flattened bodies, allowing them to hide in cracks from predators.