Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Subfamily Pachypsyllinae

5002895 - Pachypsylla Celtis leaf galls - Pachypsylla Unknown Psylloidea - Pachypsylla celtidisgemma Hackberry leaf gall - Pachypsylla Unknown Psylloidea - Pachypsylla celtidisinteneris Tetragonocephala flava Hackberry Petiole Gall Psyllids - Pachypsylla venusta Pachypsylla - female
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 Aphalaridae
Subfamily Pachypsyllinae
Explanation of Names
Pachypsyllinae Crawford, 1914
Numbers
Over 9 spp. in 2 genera in our area(1), over 20 spp. in 3 genera worldwide(2)
Size
2-6mm (3)
Identification
Pachypsylla: Basal segment of metatarsus with two black claws, forming galls on Hackberry (3)

Tetragonocephala flava: Basal segment of metatarsus without claws, on Sugarberry (3)
Range
Throughout North America, especially in the east (2)