What is Tettigoniidae?
{{Taxobox | name = Tettigoniidae | image = Tettigonia viridissima AB.jpg | image_caption = Great green bush-cricket<br />(''[[Tettigonia viridissima]]'') | image_width = 220px | regnum = [[Animal]]ia | phylum = [[Arthropod]]a | classis = [[Insect]]a | ordo = [[Orthoptera]] | subordo = [[Ensifera]] | superfamilia = '''Tettigonioidea''' | familia = '''Tettigoniidae'''}} The [[family (biology)|family]] '''Tettigoniidae''', known in [[American English]] as '''katydids''' and in [[British English]] as '''bush-crickets''', contains more than 6,400 [[species]]. It is part of the suborder [[Ensifera]]. They are also known as '''long-horned grasshoppers''', though they are more closely related to [[Cricket (insect)|cricket]]s than to [[grasshopper]]s. Their [[antenna (biology)|antennae]] may be longer than their own body length, those of the grasshoppers are always relatively short. == Disguise == Katydids may disguise themselves brilliantly. Some look exactly like dead brown [[leaf|leaves]], complete with holes, lying still on the forest floor of the rainforests of [[Asia]] and [[South America]]. Others act like green, living leaves fluttering from a branch. They even have vein-like markings like real leaves.<ref>{{cite book|title=Jungle animals: over 100 questions and answers to things you want to know|last=Ganeri|first=Anita |year=2000 |location=Dubai, U.A.E|isbn=0-75254-909-X}}</ref> [[File:Flickr - ggallice - Katydid (6).jpg|thumb|left|300px|Very interesting visual defences: upper wings fold together at rest, with a dried-leaf pattern. Under wings carry a bright colour which flashes when they fly. A startle device which gains time for escape.<ref>Castner, James L. 1995. Defensive behavior and display of the leaf-mimicking katydid ''Pterochroza ocellata'' (Orthoptera: Tettigoniidae: Pseudophyllinae: Pterochrozini). ''Journal of Orthoptera Research''. #4, August.</ref> See [[Animal colour#Startle and dazzle defences]]]] [[File:criquet.1(L).jpg|A green bush cricket sitting on a leaf|thumb|right|280px]] [[File:Leaf g