Observation on Antenna Sensillum of Sinopticula sinica Yang by Using Scanning Electron Microscope

[Objective] The study aimed to systematically observe the antenna sensillum of Sinopticula sinica Yang.[Method] The some insect galls of non-eclosion adults were selected from the Jieshi Mountain in Changli County of Hebei Province and the antenna shape and sensillum of S.sinica were observed by using scanning electron microscope when they were in eclosion after culture.[Result] The antenna of S.sinica has 38 nodes,it is equal to the length of body and it is filamentous,covered with bristle.The antenna sensillum has 8 kinds,resp.being sensillum trichodeum,sensilla chaetica,sensilla basiconica,basiconic mastoid sensillum,sensilla gemmiformium,finger sensilla,sensillum squamiformia and sensillum falcatas.In which,the sensillun trichodeum has 3 types,the sensilla chaetica,sensilla basiconica and finger sensilla has 2 types and the basiconic mastoid sensillum,sensilla gemmiformium,sensillum squamiformia and sensillum falcatas has only one type.Between the female and male individual adult,the type and distribution of antenna sensillum are same basically,but there is some difference on the quantity of the antenna sensillum.The quantity,length and the distribution are respectively different in different antenna sensillum.[Conclusion] This study provided the scientific basis for exploring the new way of controlling S.sinica.