Ulkeus

There are six species in this myrmecophilous genus of Histeridae. All are from the New World and are found in ant nests.

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List of Ulkeus and their Host Ants

Genus and species	Author and Year	Ant Host	Distribution	Notes
Ulkeus discrepans	(Reichensperger, 1939)	ants	Costa Rica
Ulkeus gratianus	(Bruch, 1926)	Neivamyrmex pseudops	Argentina, Brazil
Ulkeus henrici	(Reichensperger, 1939)	Neivamyrmex alfaroi	Costa Rica
Ulkeus intricatus	Horn, 1885	Neivamyrmex opacithorax	USA: Arizona, Kansas, New Mexico, North Carolina, Texas
Ulkeus pheidoliphilus	(Bruch, 1930)	Pheidole strobeli	Argentina
Ulkeus sahlbergi	(Schmidt, 1893)	ants	Brazil

REFERENCES

• Bruch, C. (1926) Nuevos Histéridos ecitófilos (Col.). Revista del Museo de La Plata, 29.

• Bruch, C. (1930) Histéridos huéspedes de Pheidole. Revista de la Sociedad Entomológica Argentina, 3 (1).

• Brues, C.T. 1902. New and Little-Known Guests of the Texan Legionary Ants. The American Naturalist. Vol. 36 (425):365-378.

• Horn, G.H. (1885) Contributions to the coleopterology of the United States (No. 4). Transactions of the American Entomological Society, 12.

• Reichensperger, A. (1939) Beiträge zur Kenntnis der Myrmekophilenfauna Costa Ricas und Brasiliens VII, nebst Beschreibung der Königen von Eciton (Acamatus) pilosum. Zoologische Jahrbücher, Abteilung für Systematik, Ökologie und Geographie der Tiere, 73.

• Schmidt, J. (1893) Myrmecophile Histeriden aus Amerika. Deutsche Entomologische Zeitschrift, 1893 (1).