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Biology and Behavior of Pseudacteon Decapitating Flies (Diptera: Phoridae) That Parasitize Solenopsis Fire Ants (Hymenoptera: Formicidae)

Sanford D. Porter
The Florida Entomologist
Vol. 81, No. 3 (Sep., 1998), pp. 292-309
DOI: 10.2307/3495920
Stable URL: http://www.jstor.org/stable/3495920
Page Count: 18
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Biology and Behavior of Pseudacteon Decapitating Flies (Diptera: Phoridae) That Parasitize Solenopsis Fire Ants (Hymenoptera: Formicidae)
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Abstract

Larvae of phorid flies in the genus Pseudacteon have the unusual habit of decapitating fire ant workers and pupating inside the empty head capsule which they use as a pupal case. Flies in this genus are the subject of considerable interest because they have the potential of being used as classical biological control agents against imported fire ants in North America. This paper details what is known and not known about their interesting life history, attack behavior, mating behavior, host specificity, and impacts on fire ant behavior. The biogeography, community structure, and possible impacts on fire ant populations are also considered. /// Moscas forídeas do gênero Pseudacteon produzem larvas que apresentam um habito não usual de decapitar as formigas operarias e pupas dentro da capsula cefalica vazia, a qual elas utilizam como câmara pupal. Estas moscas são asunto de consideravel interesse porque elas têm potencial de serem utilizadas como agentes de controle biológico classico contra as formigas lava-pé importadas na América do Norte. Este trabalho detalha o que é conhecido e desconhecido sobre seu ciclo de vida, comportamento de ataque, comportamento de reprodução, especificidade hospedeira e impactos do comportamento da formiga lava-pé. A biogeografia, a estrutura comunitaria e os possíveis impactos sobre as populações da formiga lava-pé são também relatadas.

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