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Subfamily Phymatinae - Ambush Bugs

ambush bug - Phymata Who am I? - Phymata Who knows - Phymata Ambush Bug - Phymata Jagged Ambush Bug - Phymata Jagged Ambush Bug - Phymata ambush bug - Phymata Unidentified Insect 42 - Phymata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Family Reduviidae (Assassin Bugs)
Subfamily Phymatinae (Ambush Bugs)
Synonyms and other taxonomic changes
Formerly its own family, Phymatidae.
Explanation of Names
See Phymata.
Numbers
Nearctica.com lists 26 species in 3 genera (Lophoscutus, Macrocephalus, and Phymata). At least the one species of Lophoscutis is now in Macrocephalus.
Identification
Small predatory bugs with swollen, raptorial forelegs. Rear (distal) half of abdomen is expanded, wider than wings. Typically wait on vegetation, especially flowers, for prey. Antennae are 4-segmented, beak 3-segmented, tarsi 3-segmented. Two ocelli (simple eyes) are present. Resemble Assassin Bugs (Reduviidae) but have clubbed antennae; forelegs usually more modified.

Most commonly seen is genus Phymata.
Remarks
This guide page includes contributions from Troy Bartlett, Mike Boone, cotinis, Robin McLeod, and Boris Bueche, copied from the original Phymatidae guide page.
See Also
The rest of the assassin Bugs (Reduviidae) do not have clubbed antennae, and forelegs are usually not as swollen or not as modified for grasping prey.
Print References
Slater & Baranowski, pp. 118-119 (1)
Internet References
Works Cited
1.How to Know the True Bugs
By Slater, James A., and Baranowski, Richard M.