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Genus Polyphylla - Lined June Beetles

hissing beetle - Polyphylla decemlineata Polyphylla hirsuta? - Polyphylla hirsuta - male Scarab Beetle - Polyphylla comes Scarab? - Polyphylla crinita Beetle - Polyphylla occidentalis Smaller lined scarab - Polyphylla Beetle on back porch - Polyphylla crinita Male, Polyphylla hammondi? - Polyphylla
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
see (4)
Range
Holarctic; in the New World, so. Canada to Honduras(1)(5), most species in w. NA
Habitat
Forests and orchards. Some species are found in sand dunes.
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
P. crinita larvae have been collected from beneath nests of harvester ants (Pogonomyrmex occidentalis).
P. decemlineata larvae are collected from a variety of crops.
P. variolosa are known to damage roots of trees such as California privet.
P. occidentalis have been collected from the roots of sedges.
Remarks
Adults come to lights
Print References
(6)