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Subfamily Melolonthinae - May Beetles and Junebugs

California Coastal Dune Beetle - Serica May Beetle - Phyllophaga - male Phyllophaga karlsioei (Linell) - Phyllophaga karlsioei - male unknown beetle - Phyllophaga Polyphylla (Polyphylla) monahansensis Hardy - Polyphylla monahansensis Beetle - Serica  Melolonthini - Polyphylla hammondi - male Melolonthinae sp. ? - Phyllophaga
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)
Other Common Names
Chafers
Explanation of Names
Melolonthinae Leach 1819
Numbers
>600 spp. in ~30 genera in our area, ~12,000 spp. in ~800 genera of 27 tribes total(1)(2)(3)
Size
3-58 mm(4); our spp. 5-35 mm
Identification
Medium-sized to large scarabs, usually brown or black. Some are shiny, many are bristly (setose) or scaly. Other characters(5):
tarsal claws often toothed or double
clypeus (shield-like area above mouthparts) unarmed (without teeth)
antennae with 7-10 segments, last 3-7 elongate and forming a club, sometimes fanning out (especially in males)
bases of antennae usually concealed from above
scutellum (triangular region at base of elytra) exposed
margins of elytra straight, not strongly curved
Range
worldwide and across NA
Print References
(5)
Works Cited
1.The Scarabaeoid Beetles of Nebraska
Brett C. Ratcliffe & M.J. Paulsen. 2008. University of Nebraska State Museum, Vol 22, 570 pp.
2.An electronic checklist of the New World chafers (Coleoptera: Scarabaeidae: Melolonthinae). Version 3
Evans A.V., Smith A.B.T. 2009. Electronically published, Ottawa, Canada. 353 pp.
3.Family-group names in Coleoptera (Insecta)
Bouchard P. et al. 2011. ZooKeys 88: 1–972.
4.Generic Guide to New World Scarab Beetles (by Brett Ratcliffe and Mary Liz Jameson)
5.Scarab beetles (Coleoptera: Scarabaeidae) of South Carolina
Phillip J. Harpootlian. 2001. Clemson University Public Service.