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1 December 2013 Wild Hosts of Frugivorous Dipterans (Tephritidae and Lonchaeidae) and Associated Parasitoids in the Brazilian Amazon
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In the past decade, the importance of the various studies on frugivorous dipterans (Tephritidae and Lonchaeidae) in the Brazilian Amazon has been recognized, especially those focused on diversity, geographic distribution, and host identification. This work aimed to identify wild plant species that are hosts of frugivorous dipterans in Amapá State, which lies in the extreme northeast of the Brazilian Amazon.

From Sep 2010 and Apr 2011, wild fruits were collected in 14 of the 16 municipalities of Amapá (Fig. 1), taking into contemplation the 3 main plant formations in the state, i.e., dryland forest, floodplain forest, and Brazilian savannah (cer-rado). The region is located between the latitudes N 03° 50′ and S 00° 34′ and longitudes W 52° 09′ and W 50° 48′. The samples were collected at random from plants that bore an abundant quantity of maturing or mature fruits. Such fruits were picked off the plant or collected from those recently fallen onto the ground. The collected samples were processed as grouped fruits, and adult insects were obtained according to the method of Silva et al. (2011a).

A total of 2,097 fruits were collected (42.0 kg), from 12 plant species native to the Amazon region, in 8 plant families (Table 1). Eight species of Tephritidae were obtained: Anastrepha antunesi Lima, Anastrepha coronilli Carrejo & González, Anastrepha distincta Greene, Anastrepha leptozo-na Hendel, Anastrepha obliqua (Macquart), Anastrepha parishi Stone, Anastrepha striata Schin-er, and Anastrepha fraterculus (Wiedemann). Likewise 4 species of Lonchaeidae were obtained: Neosilba bella Strikis & Prado, Neosilba glaberri-ma (Wiedemann), Neosilba pseudozadolicha Strikis, and Neosilba zadolicha McAlpine & Steyskal. The Anastrepha and Neosilba species collected in this work had already been reported in the state of Amapá (Silva et al. 2011b; Strikis et al. 2011).

Simaba guianensis Aubl. (Sapindales: Sima-roubaceae) is reported for the first time as a host of Tephritidae. In only one sample (41 fruits, 254g) a total of 15 puparia were obtained, from which emerged adults of A. fraterculus and A. parishi (Table 1). In the state of Amapá, A. fraterculus and A. parishi had already been reported in 5 and 3 hosts, respectively (Silva et al. 2011b; Jesus-Barros et al. 2012). New hosts are reported for the lonchaeids N. bella, N. pseudozadolicha, and N. zadolicha (Table 1).

Six species of parasitoids were collected, all of them previously reported in the region (Table 1). However, Doryctobracon crawfordi (Viereck) was associated for the first time with A. coronilli in fruits of Bellucia grossularioides L.; and Doryctobracon areolatus (Szépligeti) was associated for the first time with A. distincta in fruits of Inga laurina (Sw.) Willd. Opius bellus Gahan specimens were obtained from a Gustavia augusta L. sample (from Laranjal do Jari), but no dipterans emerged from the fruits. Therefore it is not possible to determine whether the species is associated with Tephritidae and/or Lonchaeidae. Our results indicate that the wild host plants Spondias mom-bin L. and B. grossularioides play an important role as reservoirs of native parasitoids. Similar results were obtained in other studies in the Brazilian Amazon (Costa et al. 2009; Ronchi-Teles et al. 2011; Dutra et al. 2013) and other forested areas (López et al. 1999; Aluja et al. 2003).

An undentified species of Richardia (Tephri-toidea: Richardiidae), reported in S. mombin, G. augusta, and Pouteria caimito Radlk., has also often been observed in fruits of Arecaceae [Atta-lea excelsa Mart., Astrocaryum murumuru Mart. and Maximiliana maripa (Aublet) Drude] during work conducted by our research group in the same region. Further research will be conducted to pursue a better understanding of the biology and ecology of this species.

Fig. 1.

Map of the state of Amapá, specifying the collection sites (dark squares) of fruits of wild hosts of fru-givorous dipterans (Tephritidae and Lonchaeidae) and associated parasitoids. The collections were completed from September 2010 to April 2011.

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Table 1.

Hosts of Anastrepha and Neosilba and associated paeasitoids in municipalities of Amapá state. Sep 2010 to ApR 2011.

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(Continued)

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Acknowledgments

We thank M.Sc. Salustiano Vilar da Costa Neto for identification of Simaba guianensis and to Dr. Allen Norrbom for confirming that this plant species has not been previously reported as a host of Tephritidae. To Dr. Miguel Francisco de Souza Filho for Anastrepha parishi Stone identification. To the Brazilian Council for Scientific and Technological Development - CNPq for the Research Productivity Fellowship (granted to R. Adaime), for the Human Resource Stability Fellowship (E. G. Deus) and for the Undergraduate Research Fellowships (L. S. Pinheiro, C. R. Lima and M. S. M. Sousa).

Summary

We report for the first time Simaba guianensis Aubl. (Sapindales: Simaroubaceae) as a host of Tephritidae, i.e., Anastrepha fraterculus and Anastrepha parishi. Also we report new hosts for species of Neosilba. Finally we report new associations between parasitoid hymenopterans and Anastrepha species.

Key Words: Anastrepha, Doryctobracon, Neosilba, Opius bellus, Richardia sp., Simaba guianensis

Resumo

Simaba guianensis Aubl. (Sapindales: Simaroubaceae) é registrada pela primeira vez como hospedeiro de Tephritidae, i.e., Anastrepha fraterculus e Anastrepha parishi. Foram registrados novos hospedeiros para espécies de Neosilba. Adi-cionalmente, novas associaçôes de himenopteros parasitoides e espécies de Anastrepha também são registradas.

Palavras Chave: Anastrepha, Doryctobracon, Neosilba, Opius bellus, Richardia sp., Simaba guianensis

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Ezequiel Da Glória De Deus, Luana Dos Santos Pinheiro, Camila Ribeiro Lima, Maria Do Socorro Miranda De Sousa, Jorge Anderson Guimarães, Pedro Carlos Strikis, and Ricardo Adaime "Wild Hosts of Frugivorous Dipterans (Tephritidae and Lonchaeidae) and Associated Parasitoids in the Brazilian Amazon," Florida Entomologist 96(4), 1621-1625, (1 December 2013). https://doi.org/10.1653/024.096.0453
Published: 1 December 2013
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