External Morphology of Tagosodes orizicolus (Homoptera: Delphacidae) Revealed by Scanning Electron Microscopy

 

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Detalles Bibliográficos
Autores: Mora Castro, Rebeca, Retana Salazar, Axel P., Espinoza Esquivel, Ana Mercedes
Formato: artículo original
Fecha de Publicación:2001
Descripción:A comprehensive analysis of the ultrastructure of the delphacid rice pest Tagosodes orizicolus (Muir) was undertaken using scanning electron microscopy to resolve taxonomic problems in the distinction of females and nymphs from other specimens commonly found in rice Þelds of tropical America. This research includes a detailed description of female genitalia and the ultrastructural variations observed during nymphal development. Ultrastructure of the mouthparts, speciÞcally the stylets; and the genitalia of the male are also described. Important ultrastructural details were revealed, such as the presence of microtrichia and sensillae, which are not clear when observed by light microscopy. The adults have numerous sensillae; immatures have bell-shaped chemoreceptors along the dorsal area, structures that are absent in the adult stage. Strong differences were observed between the Þrst instar and older nymphs, such as stamen-like setae, wider frons, convex clypeus observed in the Þrst and second instars; whereas conical eyes and an oar-shaped legs were observed only in the Þrst instar.
País:Kérwá
Institución:Universidad de Costa Rica
Repositorio:Kérwá
OAI Identifier:oai:https://www.kerwa.ucr.ac.cr:10669/81125
Acceso en línea:https://academic.oup.com/aesa/article/94/3/438/11825
https://hdl.handle.net/10669/81125
Access Level:acceso abierto
Palabra clave:tagosodes orizicolus
delphacid
ultrastructure
sensilla
genitalia
mouthparts