Antennal sensilla of the pecan weevil, Curculio caryae (Horn) (Coleoptera:Curculionidae)
Abstract
Scanning electron microscopy revealed 2 types of sensilla trichodea, 4 types of sensilla basiconica, and one type of sensilla styloconica on the antennal club of the pecan weevil, Curculio caryae. All receptor types are found on both male and female weevils and their distribution is similar. The total number of sensilla on the antennal club of the male is estimated to be 1467 and on the female 1491. Significant differences in numbers of basiconica type I exist for dorsal and ventral surfaces on the male but not on the female. A significant difference in number exists between the sexes for trichodea type I and for dorsal/ventral surfaces on the female. Significant differences exist in length between the sexes for trichodea type I on segments 2 and 3 and trichodea type II on all 3 segments. The porous surface present on basiconica type I sensilla indicates a possible olfactory function. © 1976.
Publication Title
International Journal of Insect Morphology and Embryology
Recommended Citation
Hatfield, L., Frazier, J., & Coons, L. (1976). Antennal sensilla of the pecan weevil, Curculio caryae (Horn) (Coleoptera:Curculionidae). International Journal of Insect Morphology and Embryology, 5 (4-5), 279-287. https://doi.org/10.1016/0020-7322(76)90028-3
