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Genus Oecanthus - Common Tree Crickets

Black-horned Tree Cricket - Oecanthus nigricornis - female Oecanthus niveus - male Pine tree cricket - 2d stage instar - Oecanthus pini Tree Cricket nymph - Oecanthus nigricornis Oecanthus? - Oecanthus quadripunctatus Snowy tree cricket - Oecanthus fultoni - male Narrow-winged Tree Cricket - Dorsal - Oecanthus niveus - female Oecanthus - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Ensifera (Long-horned Orthoptera)
Infraorder Gryllidea (Crickets)
Family Gryllidae (True Crickets)
Subfamily Oecanthinae (Tree Crickets)
Genus Oecanthus (Common Tree Crickets)
Explanation of Names
Oecanthus Serville 1831
18 spp. in our area, close to 90 total(1); our species:
Nigricornis group: O. nigricornis, O. argentinus, O. forbesi, O. celerinictus, O. pini, O. laricis, O. quadripunctatus, O. walkeri
Niveus group: O. niveus, O. exclamationis, O. leptogrammus
Rileyi group: O. rileyi, O. alexanderi, O. fultoni
Varicornis group: O. varicornis, O. californicus, O. latipennis, O. texensis
any green tree cricket in North America is an Oecanthus. Most of our Oecanthus can be identified to species by ventral markings on first two antennomeres(2)
online key to species here.
Examples of photos showing antennal markings:
Prairie Tree Cricket ▪ Black-horned Tree Cricket ▪ Four-spotted Tree Cricket ▪ Pine Tree Cricket
Western Tree Cricket ▪ Broad-winged Tree Cricket ▪ Narrow-winged Tree Cricket ▪ Davis' Tree Cricket
Snowy Tree Cricket ▪ Riley's Tree Cricket ▪ Forbes' Tree Cricket ▪ Walker's Tree Cricket
Life Cycle
see (3)
see Fulton (1915) for deatiled info on tree crickets