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

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Cicindelidia trifasciata - S-banded Tiger Beetle

dark tiger beetle - side - Cicindelidia trifasciata Cicindela trifasciata? - Cicindelidia trifasciata ID Request 3 - Cicindelidia trifasciata Backbay Beetle - Cicindelidia trifasciata ZE.35443_Cicindela_trifasciata_sigmoidea - Cicindelidia trifasciata - female Tiger Beetle ID - Cicindelidia trifasciata S-banded Tiger Beetle - Cicindelidia trifasciata - male - female S-Banded Tiger Beetle - Cicindelidia trifasciata - male - female
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 Cicindelini (Flashy Tiger Beetles)
Genus Cicindelidia
Species trifasciata (S-banded Tiger Beetle)
Other Common Names
Three-lined Tiger Beetle (subspecies C. trifasciata ascendens)
Mudflat Tiger Beetle (subspecies C. trifasciata sigmoidea)
Synonyms and other taxonomic changes
the western subspecies C. t. sigmoidea was formerly considered a separate species (C. sigmoidea)
two North American subspecies: C. trifasciata ascendens in eastern US, and C. trifasciata sigmoidea in western US
body length 11-13 mm
variably dark grayish-brown to light brown, sometimes with greenish tint; middle band curved in conspicuous S shape in well-marked specimens; lines tend to be thin and delicate in subspecies ascendens, and thicker/bolder in subspecies sigmoidea
as in many tiger beetle species, the lines may be broken or reduced to spots in some individuals
subspecies C. t. ascendens: east coast of US from Long Island, New York to Florida and gulf coast of Texas into Mexico, plus scattered inland locations as far as Kansas
subspecies C. t. sigmoidea: west coast of California, Baja peninsula, and Mexico, inland to Arizona
several other subspecies occur through Central and South America to Chile
mudflats along coast, and edges of marshes and rivers inland
adults from April to October but most numerous in summer
See Also
well-marked individuals of the Twelve-spotted Tiger Beetle (Cicindela duodecimguttata) are similar but lack a conspicuous S-shaped middle band, and do not occur in Florida or along southern coasts in general
Internet References
live adult images and dates of several individuals of subspecies ascendens, showing differences in extent of markings (Giff Beaton, Georgia)
live adult image of subspecies ascendens from Texas (Louisiana State U.)
pinned adult images of subspecies ascendens by John Riggins, plus description, habitat, Florida county distribution map (Tiger Beetles of United States, USGS)
pinned adult images of subspecies sigmoidea (Harvard U.)
common name reference [S-banded Tiger Beetle] and subspecies (ITIS, US Dept. of Agriculture)
common name reference [Three-lined Tiger Beetle] for subspecies ascendens, and semiochemical benzaldehyde as a defense substance (
common name reference [Mudflat Tiger Beetle] for subspecies sigmoidea (
North American distribution map hatched shading along southern coasts, and black dots inland (Imperial College, UK)
presence in Kansas article abstract (Ralph Charlton and Brian Kopper, Kansas State U., The Coleopterists Bulletin)
presence in South America; list collection records of subspecies from Chile (