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Species Trioza obtusa

Psyllid - Trioza obtusa Psyllid - Trioza obtusa Psylloidea - Trioza obtusa Trioza - Trioza obtusa Psyllid - Trioza obtusa Psyllid - Trioza obtusa Unknown Aphid(?) - Trioza obtusa Psyllids on underside of Amelanchier leaves - Trioza obtusa
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Sternorrhyncha (Plant-parasitic Hemipterans)
Superfamily Psylloidea
Family Triozidae
Genus Trioza
Species obtusa (Trioza obtusa)
Explanation of Names
Trioza obtusa Patch, 1911
4mm (1)
Body reddish-brown, often with a white waxy bloom on the head and thorax; wings smokey brown; head relatively large and robust (2)
Eastern USA and Canada (3)
Host: Amelanchier canadensis (2)
Life Cycle
Nymphs feed on the ventral surface of leaves where they are readily detected by their "beautiful white, floss-like wax filaments that [curl] softly up from the margin of their bodies". (4)
See Also
At least half a dozen species are associated with Amelanchier in North America, all of which are very similar, though the smokey-brown wings and easterly distribution should help to distinguish this species from most of its congeners. Nymphs of the closely-related T. frontalis do not produce any wax (5)
Works Cited
1.The psyllids of America North of Mexico: (Psyllidae: Homoptera) (Subfamilies Psyllinae and Triozinae)
Tuthill, L.D. . 1943. Iowa State College Journal of Science 17: 443-660.
2.A monograph of the jumping plant-lice or Psyllidae of the New World
David L. Crawford. 1914. Bulletin of the United States National Museum, 85: 1-186.
3.Ouvrard D. (2013) Psyl'list - The World Psylloidea Database
4.Psyllidae of Maine
Patch E. M. 1911. Bulletin of the Maine Agricultural Experimental Station 187.
5.Biological Notes and New Records of North American Chermidae (Homoptera)
Klyver, F.D. 1932. Entomological News 43.