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Genus Microcentrum - Angle-wing Katydids

Unknown katydid - Microcentrum - female Immature Katydid 1 - Microcentrum retinerve - female Any idea what this is? - Microcentrum retinerve - male Katydid 082614 - Microcentrum retinerve - male Greater Angle-wing Katydid - Microcentrum rhombifolium Microcentrum rhombifolium? - Microcentrum rhombifolium - male Amblycorypha sp.   - Microcentrum rhombifolium - female Insect - Microcentrum rhombifolium
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Ensifera (Long-horned Orthoptera)
Infraorder Tettigoniidea (Katydids, Camel Crickets, and relatives)
Family Tettigoniidae (Katydids)
Subfamily Phaneropterinae (Phaneropterine Katydids)
Genus Microcentrum (Angle-wing Katydids)
Synonyms and other taxonomic changes
Microcentrum Scudder, 1862
Numbers
6 spp. in our area(1), 34 total(2)
Identification
The two most common and widespread species are distinguished by the presence/absence of a median tooth at the front of the pronotum:
M. rhombifolium (tooth present) M. retinerve (no tooth)
Range
New World, mostly Neotropical; in our area, e. & so. US (only M. rhombifolium and M. retinerve widespread)(2)
Life Cycle
photos of eggs and a nymph: