Morphological characteristics of antennal sensilla in Talponia batesi (Lepidoptera: Tortricidae)

Antennal morphology, types of sensilla, and their distribution have been investigated in Talponia batesi Heinrich (Lepidoptera: Tortricidae) by using scanning electron and light microscopy. T. batesi antenna is filiform and segmented in both sexes, consisting of the three usual components: scape, pedicel, and flagellum. Antennal length was greater in females than in males. Five types of sensilla were identified on the antennae of both sexes: trichodea, chaetica, styloconica, coeloconica, and auricillica. All types of sensilla were present on the ventral side of the antenna, and sensilla coeloconica and auricillica also were found on the dorsal side. The sensilla trichodea were the most numerous sensilla on the antennae. There was sexual dimorphism in the antennae of T. batesi. The male antennae had more trichodea sensilla than female antennae. The sensilla observed in this species also have been reported in other Tortricidae.