Ultrastructure of sensilla on the body surface of the Tessaratoma papillosa
Tessaratoma papillosa is a pest on litchi(Litchi chine nsis)and longan(Euphoria longan).Both adults and nymphs feed on the tender buds,flowers and fruits of the host plant.This study used scanning electron microscope to observe the selected structures of sensilla on the surface of female and male adults of the T.papillosa,including antennae,labium,tarsi(forelegs,midlegs,hindlegs)and abdomen.A total of 7 types of sensilla were observed,including sensilla trichodea,sensilla chaetica,sensilla basiconica,sensilla coeloconic,sensilla ampullacea,sensilla campaniformia and trichobothria.Among them,5 subtypes of sensilla trichodea were observed;2 subtypes were observed for both sensilla chaetica and sensilla basiconica.The types,morphology and distribution of sensilla are consistent between female and male adults.Among the observed structures,the types of sensilla on the antennae are the most abundant,with all types of sensilla except for trichobothria;5 types of sensilla were observed on the labium except for sensilla coeloconic and trichobothria;sensilla chaetica and sensilla ampullacea were observed on the tarsi of each leg;trichobothria was observed on the abdomen;sensilla trichodea and sensilla ampullacea were observed at the ostiole and evaporatorium of metathoracic scent gland.This research provides a morphological basis for exploring the relationship between the sensilla on the surface and behavioral responses of T.papillosa,as well as the mechanisms of signal perception and response,thus providing a scientific basis for further research on behavioral regulation based prevention and control strategies.
Tessaratoma papillosasensillascanning electron microscopeultrastructurephysiology
NETL
NSTL
万方数据
