Oogenesis pattern and type of ovariole of the parasitoid Palmistichus elaeisis (Hymenoptera: Eulophidae)

Author:

Andrade Gilberto S.1,Sousa Adalberto H.2,Santos Juliana C.3,Gama Farah C.4,Serrão José E.5,Zanuncio José C.5

Affiliation:

1. Universidade Federal de Rondônia, Brasil

2. Universidade Federal do Acre, Brasil

3. Universidade Federal de Lavras, Brasil

4. Empresa Brasileira de Pesquisa Agropecuária, Brasil

5. Universidade Federal de Viçosa, Brasil

Abstract

The knowledge on ovigeny in parasitoids is important for basic studies on physiology and applied biological control. The ovigeny pattern and type of ovariole of the parasitoid Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) were studied in newly-emerged females at seven, 14, 24 and 48 h intervals after their emergence from Tenebrio molitor L. pupae (Coleoptera: Tenebrionidae). Females of P. elaeisis presented ovaries composed by four ovarioles of the meroistic polytrophic type. The yolk accumulation and chorionogenesis in P. elaeisis were concluded 24 h after the female emergence. The 48 h-old females show a high quantity of egg ready for oviposition. These findings can help to improve the mass production of P. elaeisis and the augmentative biological control by using this natural enemy.

Publisher

FapUNIFESP (SciELO)

Subject

Multidisciplinary

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