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Genus Polyphylla - Lined June Beetles

Polyphylla decilineata - Polyphylla decemlineata - female Ten-lined June Beetle - Polyphylla decemlineata Polyphylla decemlineata? - Polyphylla decemlineata - male Scarab? - Polyphylla decemlineata Hammond's Lined June Beetle  - Polyphylla hammondi - male Ten-lined June Beetle - Polyphylla decemlineata - male striped beetle - Polyphylla Male/Female Pair - Polyphylla decemlineata - male - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family Scarabaeidae (Scarab Beetles)
Subfamily Melolonthinae (May Beetles and Junebugs)
Tribe Melolonthini
Genus Polyphylla (Lined June Beetles)
Synonyms and other taxonomic changes
Macranoxia Crotch 1873, Polylamina Hardy 1974
Explanation of Names
Polyphylla Harris 1841
Numbers
35 spp. in our area, ~40 in the New World (all in the nominotypical subgenus)(1)(2); 4 spp. range north into Canada(3)
Size
25-35 mm
Identification
Large June beetles, most with obvious white scales on elytra often forming stripes. Species identification often difficult
Range
Holarctic; in the New World, so. Canada to Honduras(1)(4), most species in w. NA
Habitat
Forests and orchards. Some species are found in sand dunes.
Season
mostly: May-Aug (BG data)
Food
Adults feed on tree foliage; larvae feed on roots of shrubs/trees
Life Cycle
Eggs are laid on soil near host plants; larvae reach maturity in 2-3 years and pupate in underground chambers
Remarks
Adults come to lights
Print References
La Rue, D.A. 1998. Notes on Polyphylla Harris with a description of a new species (Coleoptera: Scarabaeidae: Melolonthinae). Insecta Mundi 12(1 & 2): 23–37. (5)
La Rue, D.A. 2016. Natural history, ecology, and conservation of the genus Polyphylla Harris, 1841. 1. New species from the southwestern United States and Baja California, Mexico, with notes on distribution and synonymy. Insecta Mundi 0491: 1-41. (2)
Young, R.M. 1988. A monograph of the genus Polyphylla Harris in America north of Mexico (Coleoptera: Scarabaeidae: Melolonthinae). Bulletin of The University of Nebraska State Museum, Lincoln. 11(2): 1-116.(6)