咖啡脊虎天牛触角感器的电镜观察

In this paper, the types, characteristic, quantity and distribution of the antennae sensilla of both sexes of adults, Xylotrechus grayii White. (Coleoptera, cerambycidae), were researched with scanning electron microscopy. This study can provide important foundation for the research of behaviors and the physiology of Xylotrechus grayii White. Five types of sensilla were observed on the antennae including six subtypes of sensilla chaetica, five subtypes of sensilla basiconica, one type of B?hm bristles, one type of grooved peg sensilla and one type of sensilla campaniformia. The quantity of sensilla chaetica was the largest followed by sensilla basiconica, and the quantity of others was the least. No significant sexual differences in the types and number of the antennae sensilla were discovered, and the distribution of sensilla basiconica was different between both sexes. There were more significant concentrated distribution of sensilla basiconica on the male antennae than on the female antennae.