TY - JOUR
T1 - Flagellar sensilla of Quadraspidiotus perniciosus Comstock (Rhynchota: Diaspididae) male
AU - Chiappini, Elisabetta
AU - Negri, Ilaria
PY - 2004
Y1 - 2004
N2 - The flagellar sensory structures of Quadraspidiotus perniciosus Comstock (Rhynchota: Diaspididae) male have been investigated, using scanning and transmission electron microscopy.
Five categories of sensilla have been identified: three types of sensilla trichodea, a sensillum coeloconicum and a sensillum basiconicum. The possible function of sensilla is discussed, considering their location, morphology and ultrastructure.
No gustatory sensilla have been detected. All the setae (sensilla trichodea) present on the flagellomeres, except for the three ‘knobbed’ ones that are mechanosensilla, are cuticular components of olfactory structures. These olfactory sensilla are of two distinct types, having fluted or smooth hairs; furthermore, the fluted ones present different typologies for a varied number of dendrites. They are conceivably used for perceiving female sexual pheromone. It might be that each of the different components of the female sexual pheromone is perceived by a specific sensillum.
Two types of supposed thermo-hygroreceptors have been found, one sensillum coeloconicum and two sensilla basiconica.
AB - The flagellar sensory structures of Quadraspidiotus perniciosus Comstock (Rhynchota: Diaspididae) male have been investigated, using scanning and transmission electron microscopy.
Five categories of sensilla have been identified: three types of sensilla trichodea, a sensillum coeloconicum and a sensillum basiconicum. The possible function of sensilla is discussed, considering their location, morphology and ultrastructure.
No gustatory sensilla have been detected. All the setae (sensilla trichodea) present on the flagellomeres, except for the three ‘knobbed’ ones that are mechanosensilla, are cuticular components of olfactory structures. These olfactory sensilla are of two distinct types, having fluted or smooth hairs; furthermore, the fluted ones present different typologies for a varied number of dendrites. They are conceivably used for perceiving female sexual pheromone. It might be that each of the different components of the female sexual pheromone is perceived by a specific sensillum.
Two types of supposed thermo-hygroreceptors have been found, one sensillum coeloconicum and two sensilla basiconica.
KW - Antennae
KW - Chemoreceptor
KW - Mechanoreceptor
KW - Quadraspidiotus perniciosus
KW - Rhynchota
KW - Scanning electron microscopy
KW - Sensilla
KW - Thermo-hygroreceptor
KW - Transmission electron microscopy
KW - Ultrastructure
KW - Antennae
KW - Chemoreceptor
KW - Mechanoreceptor
KW - Quadraspidiotus perniciosus
KW - Rhynchota
KW - Scanning electron microscopy
KW - Sensilla
KW - Thermo-hygroreceptor
KW - Transmission electron microscopy
KW - Ultrastructure
UR - http://hdl.handle.net/10807/105627
U2 - 10.1016/j.micron.2004.01.002
DO - 10.1016/j.micron.2004.01.002
M3 - Article
SN - 0968-4328
VL - 35
SP - 597
EP - 605
JO - Micron
JF - Micron
ER -