Cremastocheilus armatus

Cremastocheilus armatus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Scarabaeidae
Subfamily:	Cetoniinae
Tribe:	Cremastocheilini
Genus:	Cremastocheilus
Subgenus:	Myrmecotonus
Species:	C. armatus
Binomial name
Cremastocheilus armatus Walker, 1866

One of about thirty-five species of myrmecophilous Cremastocheilus. The host ant is presumed to be a species in the genus Formica.

Distribution

California, Idaho, Oregon, Washington; Canada (British Columbia);Mexico (Guerero Mill)

Habitat

Common host is Formica obscuripes. Also in nests of Formica fusca in Oregon.

Nomenclature

Type should be in the Natural History Museum, London.

• Cremastocheilus cribripennis Casey 1915 Syn
• Cremastocheilus densicollis Casey 1915 Syn.
• Cremastocheilus maritimus Casey 1915 Syn.
• Cremastocheilus montanus Casey 1915 Syn.
• Cremastocheilus obliquus Casey 1915 Syn.
• Cremastocheilus pilosicollis Horn, 1879

References

• Alpert, Gary D. 1994. A Comparative Study of the Symbiotic Relationship Between Beetles of the Genus Cremastocheilus (Coleoptera: Scarabaeidae) and their Host Ants (Hymenoptera:Formicidae). Sociobiology 25(1).

• Alpert, G.D. and P.O. Ritcher 1975. Notes on the life cycle and myrmecophilous adaptations of Cremastocheilus armatus (Coleoptera: Scarabaeidae). Psyche 82, 283-291.

• Horn, G.H. 1879. A Monographic Revision of the Species of Cremastochilus of the United States. Proceedings of the American Philosophical Society, fol 18(104): 382-397 +408.

• Mann, W.M. 1914. Some myrmecophilous insects from Mexico. Psyche 21 (6):171-184, 3 figs. correction slip.

• Van Dyke, E. 1918. Some new beetles in the families Cantharidae (Lampyridae), Ptinidae, and Scarabaeidae, from western North America, with notes upon others. Bull. Brooklyn ent. Soc. 13: 1-15. PDF'

• Walker F. (1866) Lord, J. K.: The naturalist in Vancouver Island and British Columbia, Volume 2, appendix, order Coleoptera: Richard Bentley. London :312-334.