Trifoliate leaves The leaves of clover or lucerne that are formed from three leaflets. Tritosternum Ventral, bristle-like sensory organ just behind the gnathosoma of a mesostigmatid mite. The active first instar larva of some parasitic, hypermetamorphic Neuroptera and Coleoptera and of the Sterpsiptera. Trunking System of air ducts eg. Trypomastigote Form of Trypanosomatidae with an undulating membrane and the kinetoplast located posterior to the nucleus, eg.
Tsetse fly Bloodsucking fly of the genus Glossina.
Tubercle A projection. Tumbler Mosquito pupa. Tumbu fly African Callophoridae, Cordylobia anthropophaga. Tumefaction A term used for abnormal tissue formations in insects and other invertebrates which have characteristics in common with vertebrate neoplasms but whose precise nature is unknown. Tumourigenic Causing tumour formation.