卡氏步甲触角感器的超微结构

Ultrastructure of the Antennal Sensilla of Carabus casaleianus(Coleoptera:Carabidae)

利用扫描电子显微镜,研究了卡氏步甲Carabus casaleianus成虫触角感器的类型、数量和分布规律。结果表明:卡氏步甲雌、雄成虫触角的各节长度和总长度差异均不显著;触角表面存在7类、12种感器类型,包括3种刺形感器、3种毛形感器、2种锥形感器、Bhm氏鬃毛、腔锥形感器、腔形感器和钟形感器;两性间触角感器的类型和分布无明显差异,但数量差异明显。研究结果为其后的电生理学、行为生态学等研究提供基础资料。

The typology,number,and distribution pattern of the antennal sensilla of Carabus casaleianus were studied using scanning electron microscopy. The results showed that there was no significant difference of the length of each segment and the total length of the antennal between male and female C. casaleianus. The antennal had seven types of sensilla,including three sensilla chaetica,three sensilla trichodea,two sensilla basiconica,one sensilla coeloconica,one sensilla cavity,one sensilla campaniformia and one Bhm bristles. These results suggested that there was no remarkable difference in the types and distribution of antennal sensilla in both genders,even though the numbers were significantly different. This work provided basic data for future electrophysiological and behavioural experiments.