Cicindela trifasciata sigmoidea, commonly called the mudflat tiger beetle, is a species of tiger beetle. The specimen shown in the picture was raised in captivity in Pasadena, California, an inland city. Its parents were captured at the Mugu Naval Base marsh in Ventura, California in 2003 (for a UCLA Masters thesis). This species of tiger beetle was found to be rare in 1982 by a study conducted by the Los Angeles County Natural History Museum. The leading entomologists for the 1982 study were Christopher Nagano and James Hogue. This tiger beetle, the second smallest of the six Cicindela in the Naval Base, is now extremely rare.