Host Specificity of Several Pseudacteon (Diptera: Phoridae) Parasites of Fire Ants (Hymenoptera: Formicidae) in South America

Porter, Sanford D.; Fowler, H. G.; Campiolo, Sofía; Pesquero, Marcos Antônio

doi:10.2307/3495669

Cited by 64 publications

(55 citation statements)

References 9 publications

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“…Embora o controle químico de S. invicta venha sendo o mais utilizado, sugere-se que o desenvolvimento de técnicas com diferentes táticas de controle seja importante para o manejo integrado desta espécie (Williams et al 2001). Entre as táticas disponíveis está a utilização de inimigos naturais, como os parasitóides do gênero Pseudacteon Coquillett (Diptera: Phoridae), que possuem alta especificidade por espécies de Solenopsis do complexo saevissima (Porter et al 1995). A fêmea do parasitóide apresenta característica de ovipositar no corpo das operárias e as larvas se desenvolvem na cabeça, sempre o número de um parasitóide por hospedeiro, posteriormente a formiga sofre decapitação e o parasitóide passa o período pupal dentro da cápsula cefálica, a qual serve de câmara pupal (Porter 1998).…”

Section: Fábio Souto Almeida 1 and Jarbas Marçal Queirozunclassified

“…No Brasil, os parasitóides de Solenopsis foram objetos de estudos, principalmente, a partir da década de 90, visando a introdução para a utilização no controle biológico de S. invicta nos EUA (Orr et al 1995;Porter et al 1995). Pseudacteon tricuspis Borgmeier foi introduzida em oito locais no norte da Flórida, obtendo-se êxito em seis deles (Porter et al 2004).…”

Section: Fábio Souto Almeida 1 and Jarbas Marçal Queirozunclassified

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Efeito da estrutura de habitat sobre a abundância de parasitóides Pseudacteon Coquillett (Diptera, Phoridae) em ninhos de Solenopsis invicta Buren (Hymenoptera, Formicidae)

Almeida¹,

Queiroz²

2009

Rev. Bras. entomol.

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Section: Fábio Souto Almeida 1 and Jarbas Marçal Queirozunclassified

Efeito da estrutura de habitat sobre a abundância de parasitóides Pseudacteon Coquillett (Diptera, Phoridae) em ninhos de Solenopsis invicta Buren (Hymenoptera, Formicidae)

Almeida¹,

Queiroz²

2009

Rev. Bras. entomol.

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“…Host-specificity testing has been conducted on several Pseudacteon species in the field in South America (Porter et al, 1995;Porter, 1998b) and in quarantine facilities in the United States Porter and Alonso, 1999;Porter, 2000). The South American Pseudacteon species tested revealed no tendencies to attack ant genera other than Solenopsis, and limited tendencies (depending upon the Pseudacteon species) to attack species outside the saevissima complex.…”

Section: Introductionmentioning

confidence: 99%

Post-Release Host-Specificity Testing of Pseudacteon tricuspis, a Phorid Parasitoid of Solenopsis Invicta Fire Ants

Morrison

Porter

2006

Biocontrol

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Inherent in any biological control program is the risk of nontarget effects. Pseudacteon tricuspis Borgmeier, a parasitoid phorid fly, has been introduced to the United States from South America as a potential biocontrol agent of the red imported fire ant, Solenopsis invicta Buren. We conducted tests of host specificity on introduced populations of P. tricuspis, which are attracted to alarm pheromones released by their hosts during events such as mound disturbances and interspecific interactions. We monitored disturbed mounds of S. invicta and its close congener, S. geminata (F.), during the expansion of P. tricuspis across north Florida and after populations had been established for $ 3 years. We also tested host acceptance in established populations of P. tricuspis by offering trays containing S. invicta, S. geminata, and 14 additional ant species representing 12 different non-Solenopsis genera. Although P. tricuspis was commonly observed to hover over and attempt to oviposit on S. invicta, we never observed any parasitization attempts on any other ant species. As predicted by laboratory tests, released populations of P. tricuspis appear to be highly host specific and pose no obvious threat to nontarget species.

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“…Short-range cues, such as movement, host size, and contact chemicals, have all been implicated as triggers in phorid fly oviposition (Chen et al 2009;Gazal et al 2009;Gilbert and Morrison 1997;Pesquero et al 1996;Porter et al 1995;Silva et al 2008;Wuellner et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Cuticular Hydrocarbon Cues Are Used for Host Acceptance by Pseudacteon spp. Phorid Flies that Attack Azteca sericeasur Ants

Mathis

Tsutsui

2016

J Chem Ecol

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Parasitoids often use complex cues to identify suitable hosts in their environment. Phorid fly parasitoids that develop on one or a few host species often use multiple cues, ranging from general to highly specific, to home in on an appropriate host. Here, we describe the hierarchy of cues that Pseudacteon phorid flies use to identify Azteca ant hosts. We show, through behavioral observations in the field, that phorid flies are attracted to two cryptic Azteca species, but only attack Azteca sericeasur (Hymenoptera: Formicidae: Dolichoderinae). To test whether the phorid flies use cuticular hydrocarbons (CHCs) to distinguish between the two Azteca taxa, we first documented and compared cuticular hydrocarbons of the two Azteca taxa using gas chromatography/mass spectrometry. Then, using cuticular hydrocarbon-transfer experiments with live ants, we characterized the cuticular hydrocarbons of A. sericeasur as a short-range, host location cue used by P. lasciniosus (Diptera: Phoridae) to locate the ants.

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Host Specificity of Several Pseudacteon (Diptera: Phoridae) Parasites of Fire Ants (Hymenoptera: Formicidae) in South America

Cited by 64 publications

References 9 publications

Efeito da estrutura de habitat sobre a abundância de parasitóides Pseudacteon Coquillett (Diptera, Phoridae) em ninhos de Solenopsis invicta Buren (Hymenoptera, Formicidae)

Efeito da estrutura de habitat sobre a abundância de parasitóides Pseudacteon Coquillett (Diptera, Phoridae) em ninhos de Solenopsis invicta Buren (Hymenoptera, Formicidae)

Post-Release Host-Specificity Testing of Pseudacteon tricuspis, a Phorid Parasitoid of Solenopsis Invicta Fire Ants

Cuticular Hydrocarbon Cues Are Used for Host Acceptance by Pseudacteon spp. Phorid Flies that Attack Azteca sericeasur Ants

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