Tenthredo mesomela 
Tenthredo neobesa 
Tenthredo zonula 
Tetragonisca angustula 
Tetraponera allaborans 
Texas Paper Wasp 
Texas Striped Sweat Bee 
Therion circumflexum 
Thimbleberry Gallmaker 
Thynnus ventralis 
Thyreodon atricolor 
Timulla dubitata 
Timulla vagans 
Tiphia femorata 
Toltec scoliid wasp 
Toothed Big-headed Ant 
Toothed Bull Ant 
Toothless Bull Ant 
Trachymyrmex septentrionalis 
Traumatomutilla vidua 
Tree Bumble Bee 
Trichilogaster acaciaelongifoliae 
Tripartite Sweat Bee 
Trogaspidia suspiciosa