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Molecular, Morphological, and Biological Differentiation between Anagrus virlai sp. n., an Egg Parasitoid of the Corn Leafhopper Dalbulus maidis (Hemiptera: Cicadellidae) in the New World, and Anagrus incarnatus from the Palaearctic Region (Hymenoptera: Mymaridae)

  • S V Triapitsyn
  • P F Rugman-Jones
  • P S Tretiakov
  • E Luft Albarracin
  • G Moya-Raygoza
  • R B Querino
Systematics, Morphology and Physiology

Abstract

The common New World egg parasitoid of the corn leafhopper Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae), an economically important pest of maize from Argentina to southern USA, has long been misidentified as the Palaearctic species Anagrus incarnatus Haliday or its synonym A. breviphragma Soyka (Hymenoptera: Mymaridae). Using a combination of genetic and morphometric methods, and available biological information, specimens reared from eggs of D. maidis in Argentina and Mexico, described and illustrated here as Anagrus (Anagrus) virlai Triapitsyn sp. n., are shown to be different from those of A. incarnatus from the Palaearctic region. Mitochondrial and nuclear ribosomal DNA sequence data provide clear evidence for the separation of the two species. Anagrus virlai is also known from Brazil, Colombia, Guadeloupe (France), and Guyana.

Keywords

Mymaridae Anagrus taxonomy Dalbulus maidis maize egg parasitoid 

Notes

Acknowledgments

We thank Vladimir V. Berezovskiy (UCRC) for mounting specimens and Csaba Thuróczy (Kőszeg, Hungary) for kind permission to use his photographs of the lectotype of A. incarnatus. We are also grateful to the collectors listed in “Material examined” sections for donating specimens for our research.

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Copyright information

© Sociedade Entomológica do Brasil 2018

Authors and Affiliations

  1. 1.Dept of EntomologyUniv of CaliforniaRiversideUSA
  2. 2.Francisco J. Ayala, School of Biological SciencesUniv of CaliforniaIrvineUSA
  3. 3.División Control BiológicoPROIMI-BiotecnologíaSan Miguel de TucumánArgentina
  4. 4.Depto de Botánica y Zoología, CUCBAUniv de GuadalajaraZapopanMexico
  5. 5.Embrapa Meio-NorteEmpresa Brasileira de Pesquisa AgropecuáriaTeresinaBrazil

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