STRUCTURE AND FUNCTION OF THE SENSILLA ON THE ANTENNAL CLUB OF THE SOUTHERN PINE BEETLE, DENDROCTONUS FRONTALIS (ZIMMERMAN) (COLEOPTERA: SCOLYTIDAE)

by | 1971-1980 Publications

Abstract

Four types of sensilla occur on the antennal club of Dendroctonus frontalis: fluted sensilla, sensilla trichodea II and III and sensilla basiconica. All but the sensilla trichodea III have cuticular pores. Electrophysiological studies show the sensilla trichodea II and basiconia to be olfactory sensitive hairs for beetle and host tree-produced volatiles. The sensilla trichodea III are mechanosensitive hairs. Electrophysiological data were not obtained for the fluted sensilla. The morphologies of the 4 sensillar types are described.

Keywords

Olfactory sensilla, bark beetle, pheromone, host odor.

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DICKENS, JC, and TL PAYNE. 1978. “STRUCTURE AND FUNCTION OF SENSILLA ON ANTENNAL CLUB OF SOUTHERN PINE BEETLE,DENDROCTONUS-FRONTALIS (ZIMMERMAN) (COLEOPTERA-SCOLYTIDAE).” International Journal of Insect Morphology & Embryology7 (3): 251–65. https://doi.org/10.1016/0020-7322(78)90007-7.