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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Entomológica Argentina
2025
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| Online Access: | https://www.redalyc.org/articulo.oa?id=322081906004 https://www.redalyc.org/journal/3220/322081906004/ https://www.redalyc.org/journal/3220/322081906004/html/ https://www.redalyc.org/journal/3220/322081906004/322081906004.epub https://www.redalyc.org/journal/3220/322081906004/movil https://doi.org/10.25085/rsea.840211 |
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Table of Contents:
- The exotic delphacid Leptodelphax maculigera (Hemiptera: Fulgoroidea) in Argen-tina: taxonomy and biological aspects Ana M. MARINO de REMES LENICOV Roxana MARIANI Melina S. ALMADA Adriana SALUSO Diego E. SZWARC Biología Distribution New host plants Field observations African planthopper Morphological characters Leptodelphax maculigera (Stål) (Hemiptera, Fulgoroidea) is reported for the first time in Argentina. It is native to the Afrotropical region and recently recorded in South America in corn-growing areas in Brazil as a potential vector of “corn stunt” complex pathogens. Specimens have been periodically collected since July 2024 on several cereals and forage crops at the commercial and experimental fields of the National Agricultural Technology Institute (INTA), Argentina. Complementary morphological characters that distinguish adults of both sexes are described and illustrated, and the anatomical features of the fifth-instar nymphs are detailed to provide taxonomic elements that allow differentiating it from other species of delphacids present in the Argentine cereal region. Adults are slender with a pale coloration and a facial black spot between the frons and clypeus, with distinctive male and female genitalia. Nymphs of the fifth-instar are of yellowish whitish coloration, with a similar black facial spot but located centrally on frons. These morphological traits serve as diagnostic characters for distinguishing both developmental stages. The distribution range in Argentina marks the southernmost known limit of the genus. Preliminary field observations underscore the significance of Setaria sphacelata (Schumach.) (Poaceae) as a preferred host while identifying Chloris gayana Kunth and Avena sativa L. (Poaceae) as new hosts. 2025 artículo científico 1851-7471 https://www.redalyc.org/articulo.oa?id=322081906004 https://www.redalyc.org/journal/3220/322081906004/ https://www.redalyc.org/journal/3220/322081906004/html/ https://www.redalyc.org/journal/3220/322081906004/322081906004.epub https://www.redalyc.org/journal/3220/322081906004/movil https://doi.org/10.25085/rsea.840211 en http://www.redalyc.org/revista.oa?id=3220 Revista de la Sociedad Entomológica Argentina application/pdf Sociedad Entomológica Argentina Revista de la Sociedad Entomológica Argentina (Argentina) Num.2 Vol.84