走査電子顕微鏡によるコガネムシ類(昆虫網:鞘翅目,コガネムシ科)触角の鰓状部感覚子の観察

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The ultrastructures of sensilla of the lamellated antennae of scarabid beetles which are 22 species belonging to an genera are observed and described. In the lamellated parts of antennae, the upper surface exhibits the scaling structure, and the lower one are covered with the clypeate 'sp 1) and hairy (st 1 and/ro st 2) sensilla. In many species, there are many hairy sensilla (st 4-6) in the posterior parts of the middle lamellate parts of antennae. The species which belong to the same genera have several common characters. in both sexes and different colour-oatterned individuals of a species, the structure and distributin of sensilla in lamellate parts of the antennae are generally similar to each other.昆虫類の生活に重要な役割りを果たす感覚器官のうち、触覚は特に重要な意義を持っている。筆者は鱗翅目(Coleoptera) コガネムシ科(Scarabeidae) 22種の触覚先端の鰓状部に分布する感覚子を、走査電子顕微鏡を用いて観察したので、各種について観察結果を記載し、さらに、それらの類似性について述べる。