CeratohisterMichael S. Caterino
- Ceratohister ankylonotum Dégallier & Caterino
- Ceratohister cornutus Dégallier & Caterino
- Ceratohister demotus (Caterino)
- Ceratohister leai Dégallier & Caterino
- Ceratohister pheidoliphilus Reichensperger
Ceratohister was first named by Reichensperger (1924) for a species collected with Pheidole ants in India, C. pheidoliphilus. Neither his type specimen, nor that species have ever been seen again. The genus is unusual (though not unique) among Chlamydopsinae in lacking elytral trichomes. As these are generally considered the hallmarks of myrmecophilous beetles, it is particularly interesting to note that at least one of the species uses ants as a host.
Subsequent species placed in Ceratohister have been collected well to the east and southeast of the original species, from Borneo and Sulawesi.
The genus Ceratohister is not very well supported at present. Given uncertainty about its monophyly, it is not possible to place Ceratohister among other 'hidden scutellum group' taxa. Its species generally appear closely related to others lacking elytral trichomes (those in Pheidoliphila), but it is unlikely that this loss has only happened once.
The genus Ceratohister is defined very practically by the lack of elytral trichomes in combination with a generally smooth dorsum (as opposed to carinate as seen in some Pheidoliphila which also lack typical trichomes.)
Caterino. M. S. and Dégallier, N. 2007. A review of the biology and systematics of Chlamydopsinae. Invertebrate Systematics 21:1-28.
Reichensperger, A. 1924. Zur kenntnis myrmekophiler Histeriden. Entomologische Mitteilungen 8:302–308.
- Color images of all species. Supplement to descriptive paper, hosted by M. Caterino and the Santa Barbara Museum of Natural History.
Correspondence regarding this page should be directed to Michael S. Caterino at
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- First online 15 July 2007
- Content changed 15 July 2007
Citing this page:
Caterino, Michael S. 2007. Ceratohister http://tolweb.org/Ceratohister/9258/2007.07.15 in The Tree of Life Web Project, http://tolweb.org/. Version 15 July 2007 (under construction).