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Genus Megacerus - Large-horned Bruchids

small beetle - Megacerus discoidus Beetle - Megacerus discoidus Megacerus cubiculus (Casey) - Megacerus cubiculus - male Megacerus leucospilus (Sharp) - Megacerus leucospilus Beetle - Megacerus discoidus Male, Megacerus cubiculus? - Megacerus cubiculus - male Megacerus impiger - male Megacerus discoidus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Bruchinae (Pea and Bean Weevils)
Tribe Bruchini
Genus Megacerus (Large-horned Bruchids)
Explanation of Names
Megacerus Fåhraeus 1839
Numbers
9 spp. in 3 subgenera in our area(1);
missing in guide: M. deceptor Terán & Kingsolver, 1977, M. tricolor (Suffrian, 1870)
Identification
Antennae of males pectinate; hind femora not greatly enlarged(2)
Range
e. and so. US to CA (3)
Remarks
our only representative of the subtribe Megacerina Bridwell 1946
See Also
Male Emelinus (Aderidae) have similar antennae and head shape:
Works Cited
1.Handbook of the Bruchidae of the United States and Canada
Kingsolver J.M. 2004. USDA Tech. Bull. 1912 (2 vols.).
2.Leaf and Seed Beetles of South Carolina
Janet Ciegler. 2007. Clemson University.
3.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.