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Key to ID of U.S. Species
Alexander's -- alexanderi
Black-horned -- nigricornis
Broad-winged -- latipennis
Davis' -- exclamationis
Different-horned -- varicornis
Fast-calling -- celerinictus
Forbes' -- forbesi
4-spotted - quadripuinctatus
Narrow-winged -- niveus
Pine -- pini
Prairie -- argentinus
Riley's -- rileyi
Snowy -- fultoni
Tamarack -- laricis
Texas -- texensis
Thin-lined -- leptogrammus
Walker's -- walkeri
Western -- californicus
Oecanthus major
Two-spotted - N. bipunctata
Allard's (tropical)
Nicaraguan Oecanthus x3
Nicaragua Neoxabea x2
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Tree crickets shed their outer 'skins', or exoskeletons, six times between the nymph stage and full adulthood.  Their lifecycle consists of:  nymph, 1st instar, 2d instar, 3d instar, 4th instar, 5th instar and adult.  As they grow and develop, their outer 'shell' does not -- thus the need to shed.  Within minutes, they eat the entire exoskeleton - which once it is shed is referred to as the exuvium/exuvia/exuviae.

Female Oecanthus varicornis completing a final molt.  Note the coloration on the exuvia.


[Note: Videos will not play with Microsoft Edge]

Below is the beginning of the molting process for a Forbes' tree cricket.  Generally, the tree cricket will cling to a leaf with their hind leg 'claws' and hang upside down.  With this assistance from gravity, the exoskeleton splits and the tree cricket slowly emerges from its old anchored shell.



This is a Narrow-winged tree cricket undergoing a molt.


Here is a Two-spotted tree cricket freeing itself from its exoskeleton.