Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Omus - Night-stalking Tiger Beetles

Omus cazieri van den Berghe, 1994 [Paratype] - Omus cazieri - female Beetle - Omus dejeanii - male Big black beetle - Omus dejeanii Omus laevis LeConte, 1866 - Omus laevis - female ZE.26774_Omus_audouini - Omus audouini Black Tiger Beetle 2 - Omus dejeanii On the beach - Omus dejeanii - male - female Omus californicus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Carabidae (Ground Beetles)
Subfamily Cicindelinae (Tiger Beetles)
Tribe Amblycheilini (Blunt-lipped Tiger Beetles)
Genus Omus (Night-stalking Tiger Beetles)
Synonyms and other taxonomic changes
Genus is currently under study
Explanation of Names
Omus Eschscholtz 1829
Probably from Greek omos (ωμος) 'fierce, cruel'
5-15 spp. recognized by various workers, and varying numbers of indistinct subspecies(1); just 5 spp. treated in(1)
Species in BG:
O. audouini Reiche
O. cazieri van den Berghe
O. dejeanii Reiche
O. laevis LeConte
12-21 mm(1)
Western North America (so.BC-CA)(1)(2)
Usually found in the transition zone between forests and meadows. During the day these beetles are found under leaf litter and in or under fallen tree trunks.
Under cover in fields and open forests during the day.(2)
Life Cycle
Life cycle of most species apparently 3 or more years(1)
flightless; primarily nocturnal (occasionally active on overcast days)(1)
Works Cited
1.A field guide to the tiger beetles of the United States and Canada: identification, natural history, and distribution... 2nd Ed.
Pearson D.L., Knisley C.B., Duran D.P., Kazilek C.J. 2015. Oxford University Press. 328 pp.
2.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.