(Volver al Index)
Rev. Iber.
Aracnol., Vol. 20 (2011)
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First
record of egg sac predation of the wasp Tromatobia sp. Foster,
1869 (Hymenoptera: Ichneumonidae) upon Araneus omnicolor (Keyserling,
1893) (Araneae: Araneidae) |
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Sobczak, JF., Loffredo,
APS.1 & Sobczak, JCMSM.2 |
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1
Universidade Federal de São Carlos, São Carlos, SP, Brazil E-mail:
jobczak@gmail.com E-mail: ap_loffredo@yahoo.com.br |
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2 Universidade Estadual
de Campinas, Campinas, SP, Brasil, E-mail: jucbio@gmail.com |
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Abstract: |
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This work record the first
interaction between the parasitoid wasp Tromatobia sp.
(Ichneumonidae, Pimplinae) and its host Araneus omnicolor
(Araneae: Araneidae), which was observed in the Serra do Japi, São
Paulo, Brazil. In this interaction, the larvae of Tromatobia sp.
are able to consume 100 % of the egg mass of the host that remains
suspended in the web of Araneus omnicolor. |
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Key words: Polysphincta genus-group,
host cocoon, egg sacs suspended, Brazil. |
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Primera cita de la depredación de
Tromatobia sp. Foster, 1869 (Hymenoptera: Ichneumonidae) sobre la
puesta de Araneus omnicolor (Keyserling, 1893) (Araneae: Araneidae) |
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Resumen: |
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Este trabajo es el primer
registro de la interacción entre la avispa parasitoide Tromatobia
sp. (Ichneumonidae, Pimplinae) y su hospedador Araneus omnicolor
(Araneae: Araneidae), observada en la Serra do Japi, Sao Paulo, Brasil.
En esta interacción, las larvas de Tromatobia sp. son capaces de
consumir hasta el 100 % de la masa de huevos del hospedador, la cual
permanece suspendida en la tela de Araneus omnicolor. |
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Palabras clave: Grupo-género Polysphincta,
hospedador, capullo, ovoteca suspendida, Brasil. |
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