Abstract

Phaenoglyphis villosa (Hartig, 1841) (Hymenoptera: Figitidae: Charipinae) is a secondary endoparasitoid of Aphidiinae (Hymenoptera: Braconidae), a subfamily which are important primary parasitoids of aphids (Hemiptera: Aphididae). It is here registered for the first time in Brazil, collected from primary parasitoids in field-exposed aphids. Phaenoglyphis villosa was recorded during wheat crop season (winter and spring), emerging from Rhopalosiphum padi (Linnaeus, 1758) mummies (n = 35♀). It was also recorded from Sitobion avenae (Fabricius, 1775) mummies, in wheat crop season (late winter) (n = 13♀) and black oat crop season (late autumn) (n = 1♀). We suggest three possible primary braconid parasitoids as hosts to this hyperparasitoid: Aphidius platensis Brèthes, 1913, Aphidius rhopalosiphi de Stefani-Perez, 1902, and Aphidius uzbekistanicus Luzhetzki, 1960.

Highlights

  • Phaenoglyphis villosa (Hartig, 1841) (Hymenoptera: Figitidae: Charipinae) is a secondary endoparasitoid of Aphidiinae (Hymenoptera: Braconidae), a subfamily which are important primary parasitoids of aphids (Hemiptera: Aphididae)

  • The species is a secondary solitary endoparasitoid of primary aphid (Hemiptera, Aphididae) parasitoids in the subfamily Aphidiinae (Hymenoptera: Braconidae) and Aphelinus (Hymenoptera: Aphelinidae) (Pujade-Villar et al 2007). This is the first record of P. villosa from Brazil, and, the possible host associations in wheat plants

  • Field bioassay were conducted in a 0.5 ha experimental area (28°13'43.2"S 52°24'04.6"W) of Embrapa Wheat in Passo Fundo (PF), Rio Grande do Sul (RS), Brazil, from August 2018 to July 2019

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Summary

Introduction

Phaenoglyphis villosa (Hartig, 1841) (Hymenoptera: Figitidae: Charipinae) is a secondary endoparasitoid of Aphidiinae (Hymenoptera: Braconidae), a subfamily which are important primary parasitoids of aphids (Hemiptera: Aphididae). Phaenoglyphis villosa (Hartig, 1841) has been introduced into different continents together with aphids infected with primary parasitoids on their host plants (Pujade-Villar et al 2011). Phaenoglyphis villosa has been associated with numerous hosts (Pujade-Villar et al 2011; Ferrer-Suay et al 2012b), and could be considered a cosmopolitan species, being recorded in all the biogeographic regions (Pujade-Villar et al 2011; Ferrer-Suay et al 2012b).

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