Crickets and Katydids
Field Guide
Crickets and Katydids Biology
Questions for Discussion

Striped Raspy Cricket
Spider Face Leaf-rolling Cricket
Three Eyed Leaf-rolling Cricket
Pale-brown Leaf-rolling Cricket 
Greenish Meadow Katydid
Whitish Meadow katydid 
Blackish Meadow Katydid
Reddish Meadow Katydid 
Spine-headed Katydid 
Predatory Katydid
Short-winged Swayer 
Snub-nose Katydid 
Brown-backed Katydid
White-backed Nymph
Naskrecki's Bush Katydid 
32-Spotted Katydid
Speckled Katydid
Common Garden Katydid 
Common Garden Katydid
Brisbane Garden Katydid
Dark Green Katydid 
Unknown Nymph- I
Unknown Nymph- II 
Small Grassland Katydid
Gum Leaf Katydid  
Mountain Katydid
Unidentified Katydids
Slow-chirping Cricket
Silent Leaf-runner
Spider Cricket
Ground Cricket 1
Ground Cricket 2 
Silent Bush Cricket
Scaled Cricket 
Common Mole Cricket
Dark Night Mole Cricket 

Unidentified Cricket


Katydids - Family TETTIGONIIDAE

This page contains pictures and information about Katydids that we found in the Brisbane area, Queensland, Australia.
Members in the Tettigoniidae family include Katydids, Long-horned Grasshoppers and Bush Crickets. Most of them are green in colour with leaf shaped wings that are held roof-like over the body. The fore wings are relatively hard and rigid comparing with other species in Order Orthoptera. They have very long antenna, usually longer than their body length. Most Species have large hind legs for jumping. 
Many katydids are nocturnal, they rest during the day and well camouflaged on vegetation. Most of them are plant foliage feeders. They feed on leaves, flowers or/and seeds. A few of them are predaceous species. Some species are omnivorous or scavengers. 
Species in family Tettigoniidae are masters of camouflage. Most of the katydids resemble plants, such as leave, twigs, lichens or flowers. Some species nymphs resemble ants. Other species may resemble spiders or young bugs. A few of them are with brightly warning colours and are distasteful to predators. 
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Notice the auditory organs present on fore tibia. 
Adults stridulate using fore wings. The common name "Katydid" is after a species whose make sound likes "Katy-did". They produce the sound by file on left wing and  scraper on right wing. Female of some species will answer the males by different stridulation mechanisms. Some species sing in the frequency that too high for human to hear. They have auditory organs (tympanum) that is located at the base of the front tibia.
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Katydid's eggs, length 5mm                                   
Most species females have sword-like ovipositor and lay eggs by cut slits and attach onto leaves and stems. Some may laid eggs under barks or on ground. Many species that males produce large spermathecae when courtshipping which females will eat.
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nymph, body length 10mm 
Nymphs are usually looked quite different from the adults. This allow them to live in different habitats and conditions. Some species the nymphs resemble ants to avoid being eaten. Most adults camouflage as leaves.
We record the life cycle of the Gum Leaf Katydid, details please click on the link. 


We found quite a number of different Katydid species in Brisbane. They are grouped into the followings subfamilies.
Subfamily Conocephalinae - Meadow Katydids
The Meadow katydids in Subfamily Conocephalinae are from small to medium in size with slender body. They are usually found on grasses and sedges. Males chorus loudly at evening or afternoon if overcast days. Their loud buzzing calls are common in grasslands.
Subfamily Meconematine - Swayer
The katydids in this family are usually small and greenish. They are predator to other small insects. We only found one species in this subfamily.
Subfamily Pseudophyllinae
The first species called "katydid", Pterophylla camellifolia,  was in this subfamily. This is why this subfamily called True Katydids. They can be found in tropical regions. We only found one species in this subfamily.
Subfamily Phaneropterinae - Bush Katydids
Phaneropterinae is the largest subfamily of  Tettigoniidae. They can be found in different kinds of habitats. Most of them feed on a large variety of plants. Most of them are active at night although a few are active during the day. Nymphs are usually looked very different from their parents. Most nymphs take the advantages of mimicking other insects to avoid predators. Most adults, however, are green in colour and camouflage as leaf.  
There are some more Katydids yet to be identified in this page.

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, p382.
2. Grasshopper Country - the Abundant Orthopteroid Insects of Australia, D Rentz, UNSW Press, 1996.
3. Northern Territory Insects, A Comprehensive Guide CD - Graham Brown, 2009.
4. A Guide to the Katydids of Australia - David Rentz, CSIRO PUBLISHING, 2010. 
5. Family TETTIGONIIDAE - Australian Biological Resources Study, Department of the Environment, Water, Heritage and the Arts, 2008.  

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Up ] Conocephalinae ] Meconematine ] Pseudophyllinae ] Phaneropterinae ] Unidentified Katydids ]


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Last updated: May 12, 2012.