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Species Cacopsylla pyricola - Pear Psylla

Cacopsylla pyricola (= Psylla pyricola = Psylla pyri)  - Cacopsylla pyricola Cacopsylla pyricola 1st instar - Cacopsylla pyricola Cacopsylla pyricola 2nd instar - Cacopsylla pyricola Cacopsylla pyricola 3rd instar - Cacopsylla pyricola Cacopsylla pyricola 4th instar - Cacopsylla pyricola Cacopsylla pyricola 5th instar - Cacopsylla pyricola Cacopsylla pyricola adult overwintering form - Cacopsylla pyricola Cacopsylla pyricola - male
Classification
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 Psyllidae
Subfamily Psyllinae
Genus Cacopsylla
Species pyricola (Pear Psylla)
Synonyms and other taxonomic changes
Psylla pyricola (Förster, 1848)
Psylla pyri auct. nec. L.
Explanation of Names
Cacopsylla pyricola (Förster, 1848)
Size
adults (to the tip of folded wings): summer form 2.0-2.75 mm, winter form 3.3-4 mm(1)
Range
native to Europe, adventive elsewhere; now widespread in NA in both the east and the west(1)(2)(3); considered native by some workers [q.v.(4)]
Food
hosts: Pyrus spp. (Rosaceae)(5)
Remarks
earliest record in our area: CT 1832; the only one of several European pear psyllids to have been introduced into North America(1)