Rodrigo Almeida Pinheiro, Maria Jéssica Dos Santos Cabral, Samuel Cunha Oliveira Giordani, José Cola Zanuncio, José Eduardo Serrão, Conceição Aparecida Dos Santos, Marcus Alvarenga Soares
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引用次数: 0
摘要
Bedellia somnulentella Zeller, 1847(鳞翅目:Bedelliidae)是甘薯 Ipomoea batatas 的一种全球性害虫,在巴西曾有过记录,但有关这种昆虫性二态的形态学信息却很少。本研究的目的是评估 B. somnulentella 蛹和成虫的性二态形态特征。在 B. somnulentella 蛹的腹部末节未发现具有性二态的外部结构。这种昆虫的雌虫体重较大,这可能是其独特的性别特征。雌虫后翅上有一对蹼,而雄虫后翅上只有一个蹼,此外,雄虫的头状体和双节生殖器较长,而雌虫的头状体较小,涉及最后一个腹节,并有一个产卵器,这些都是区分索木伦氏蝉性别的特征。
Sex dimorphism in pupae and adults of the specialist Ipomoea batatas defoliator Bedellia somnulentella (Lepidoptera: Bedelliidae).
Bedellia somnulentella Zeller, 1847 (Lepidoptera: Bedelliidae), a global pest of the sweet potato Ipomoea batatas, was recorded in Brazil, but morphological information on the sexual dimorphism of this insect is scarce. The objective was to evaluate morphological characters of sexual dimorphism of B. somnulentella pupae and adults. External structures with sexual dimorphism were not detected in the last abdominal segments of B. somnulentella pupae. The females of this insect are heavier, which could be a distinctive sex characteristic. A pair of frenulum on the hind wings of females and only one on those of males, in addition to elongated cerci and bipartite genitalia in the latter and smaller cerci involving the last abdominal segment and an ovipositor in females, differentiate sexes of B. somnulentella.
期刊介绍:
Neotropical Entomology is a bimonthly journal, edited by the Sociedade Entomológica do Brasil (Entomological Society of Brazil) that publishes original articles produced by Brazilian and international experts in several subspecialties of entomology. These include bionomics, systematics, morphology, physiology, behavior, ecology, biological control, crop protection and acarology.