Scanning Electron Microscope Observation on Antenna of Red Turpentine Beetle (Dendroctonus valens LeConte)
- Received Date: 2002-11-29
Abstract: Antennae surface structure and morphological characters of male and female red turpentine beetle,Dendroctonus valens, were observed with scanning electron microscope (SEM). The results showed that there were not much differences between the structure of male and female. Most of the sensilla were distributed on the club of the antenna which ocupied 94.5%, while only 4% and 1.5% on scape and funicle. All of the sensilla could be divided into 4 types: sensilla trichodea, sensilla chaetica, sawtooth shape sensilla, and bud shape sensilla. Sensilla trichodea, sensilla chaetica, sawtooth shape sensilla respectively acounted for 70%, 24%, 6%; bud shape sensilla was extremely rare. Sensilla trichodea and sensilla chaetica only distributed on the club, sawtooth shape sensilla on the scape and fanicles, while bud shape sensilla mainly on the base of scape.