生物学杂志

Journal of Biology ›› 2024, Vol. 41 ›› Issue (2): 80-.doi: 10.3969/j.issn.2095-1736.2024.02.080

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Scanning electron microscopic observation of sensilla on the antennae of Prionolomia gigas Distant

In order to understand the relationship between antennal sensilla of Prionolomia gigas Distant and their olfactory sensory functions, scanning electron microscope was used to examine the types, ultrastructure and distribution patterns of the antennae sensilla from the male and female adult of P. gigas. The results showed that the antennae of P. gigas were filiform and formed of scape, pedicel and flagellum. The length of each segment and the total length of antennae of male and female adults were different. Six sensilla types were observed on antennae of female and male adults, including trichodea sensilla, chaetica sensilla, basiconca sensilla, cavity sensilla, coeloconic sensilla and bent-tipped sensilla. The type of trichodea sensilla was the most numerous and had the widest distribution on antennae. Sensilla in the flagellum were much more abundant than that on scape and pedicel. There was obvious dimorphism that the female of P. gigas had more sensilla types than the male.   

  1. Key Laboratory of Conservation and Utilization of Insect Resources in Western Yunnan, Resources Institute of
    Gaoligong Mountains , Baoshan University, Baoshan 678000, China
  • Online:2024-04-18 Published:2024-04-17

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Abstract: In order to understand the relationship between antennal sensilla of Prionolomia gigas Distant and their olfactory sensory functions, scanning electron microscope was used to examine the types, ultrastructure and distribution patterns of the antennae sensilla from the male and female adult of P. gigas. The results showed that the antennae of P. gigas were filiform and formed of scape, pedicel and flagellum. The length of each segment and the total length of antennae of male and female adults were different. Six sensilla types were observed on antennae of female and male adults, including trichodea sensilla, chaetica sensilla, basiconca sensilla, cavity sensilla, coeloconic sensilla and bent-tipped sensilla. The type of trichodea sensilla was the most numerous and had the widest distribution on antennae. Sensilla in the flagellum were much more abundant than that on scape and pedicel. There was obvious dimorphism that the female of P. gigas had more sensilla types than the male.

Key words: Prionolomia gigas Distant, antenna sensilla, scanning electron microscopy, ultrastructure, function

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