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Species Eburia quadrigeminata - Ivory-marked Beetle

Ivory-marked Beetle - Eburia quadrigeminata Ivory-Marked Beetle - Eburia quadrigeminata Ivory-Spotted Longhorn - Eburia quadrigeminata Eburia quadrigeminata (Say) - Eburia quadrigeminata ID help - Eburia quadrigeminata Longhorn beetle - Eburia quadrigeminata four-marked ash borer - Eburia quadrigeminata long horned beetle - Eburia quadrigeminata
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 Cerambycidae (Longhorn Beetles)
Subfamily Cerambycinae
Tribe Eburiini
Genus Eburia
Species quadrigeminata (Ivory-marked Beetle)
Synonyms and other taxonomic changes
Eburia quadrigeminata (Say)
Orig. Comb: Stenocorus quadrigeminatus Say 1827
12-25 mm (1)

Det. M. A. Quinn, 2011
e US (TX-FL-NY-MN) (2), introduced in Cuba and Argentina (3)(4)
Deciduous forests
Mostly Jun-Aug (BG data)
hosts include a wide variety of hardwoods (oak, ash, hickory, locust, chestnut, maple, elm, beech, cherry); larvae bore in heartwood (4);
adults come to bait traps and perhaps feed on rotting fruit, nectar (1)
Life Cycle
Notorious for emerging from furniture after as many as 10-40 yrs (1)(4)
Delayed emergence of E. quadrigeminata was discovered from a birch bookcase 40 years old (Jaques 1918).
Attracted to lights (1)
See Also
Eburia haldemani LeConte might be a synonym of E. quadrigeminata (5)
E. haldemani is a taxonomic problem because it intergrades with E. quadrigeminata over much of the southern and western parts of the range of E. quadrigeminata. E. "haldemani" can sometimes be almost spotless or can be very heavily darkened in Central Texas. In the Davis Mts it again appears more normal. In east Texas, the specimens can be very large and have quite a variation in the ivory markings (eburneous spots). I consider the east Texas specimens to be E. quadrigeminata, although some consider them to be E. haldemani. (Dan Heffern, pers. comm. 2015)
Print References
Jaques, H.E. 1918. A long-life wood-boring beetle. Proc. Iowa Acad. Sci. 25: 175.
Internet References
Texas Entomology - Mike Quinn, 2008
Works Cited
1.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.
2. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
3.Checklist of the Oxypeltidae, Vesperidae, Disteniidae and Cerambycidae (Coleoptera) of the Western Hemisphere
Bezark L.G., Monné M.A. 2013. 470 pp.
4.The genus Eburia Audinet-Serville in Florida (Coleoptera: Cerambycidae)
Thomas M.C. 1999. Fla. Dept. Agric. & Consumer Serv., Division of Plant Industry Entomology Circular 396: 1-4.
5.Illustrated Key to the Longhorned Woodboring Beetles of the Eastern United States
Steven W. Lingafelter. 2008. Coleopterists Society.