T. insignis

T. insignis may refer to:
 * Tetraceratops insignis, a lizard-like synapsid species that lived during the Early Permian period
 * Thamnochortus insignis, a grass-like restio species found in Africa
 * Thamnophilus insignis, the streak-backed antshrike, a bird species found in Brazil, Guyana and Venezuela
 * Thaumastoptera insignis, a crane fly species in the genus Thaumastoptera
 * Thyreus insignis, a bee species in the genus Thyreus
 * Tityus insignis, a scorpion species in the genus Tityus
 * Tonicella insignis, a chiton species in the genus Tonicella
 * Torellia insignis, a sea snail species
 * Trachelyopterus insignis, a species of catfish
 * Trochisciopsis insignis, an alga species in the genus Trochisciopsis

Synonyms

 * Tadarida insignis, a synonym for Tadarida teniotis, the European free-tailed bat, a bat species found across the Old World