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Morphology and biology of Porphyrosela minuta Clarke 1953 (Lepidoptera: Gracillariidae, Lithocolletinae) in Uruguay
Bentancourt, Carlos M; Scatoni, Iris B.
  • Bentancourt, Carlos M; Universidad de la República. Montevideo. UY
  • Scatoni, Iris B; Universidad de la República. Montevideo. UY
Neotrop. entomol ; 36(4): 514-519, July-Aug. 2007. ilus
Article in English | LILACS | ID: lil-464611
ABSTRACT
Porphyrosela minuta Clarke is a gracillariid that causes damage on white clover (Trifolium repens) in Uruguay. In this article, the eggs, all the larval instars, the pupa and the external morphological characteristics of the adult are described. Information about the insect's biology under laboratory and field conditions is presented. The eggs are laid singly on the upper surface of the leaflets. The larvae make extensive mines that appear as white blotches. The larvae develop through five instars and do not remain exposed during their development. At 25°C the life cycle lasted 16.2 days, made up of 3.0 for eggs, 8.8 for larvae and 4.4 for pupae. Females began laying on the first night, and during an oviposition period that varied between five and 12 days deposited an average of 71.8 eggs. It is a multivoltine species and seven to nine generations occur between November and the end of March.
RESUMEN
Porphyrosela minuta Clarke es un gracilárido que causa daños sobre trébol blanco (Trifolium repens) en Uruguay. En este artículo, son descriptos huevo, todos los instares larvarios y pupa. Características morfológicas externas del adulto son igualmente incluidas. Se aporta información sobre la biología en condiciones de laboratorio y campo. Los huevos son depositados simples sobre la epidermis superior de los foliolos. Las larvas forman grandes minas a modo de manchas blancas. La larva pasa por cinco estadios sin permanecer expuesta durante su desarrollo. A 25°C el ciclo de vida requirió de 16,2 días en completarse, correspondiendo 3,0 a huevos, 8,8 a larva y 4,4 a pupa. Las hembras iniciaron la puesta la primera noche y durante un periodo de oviposición que osciló entre cinco y 12 días depositaron en promedio 71,8 huevos. Es una especie multivoltina que desarrolla de siete a nueve generaciones de noviembre a fines de marzo.
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Full text: Available Index: LILACS (Americas) Main subject: Lepidoptera Country/Region as subject: South America / Uruguay Language: English Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2007 Type: Article Affiliation country: Uruguay Institution/Affiliation country: Universidad de la República/UY

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Full text: Available Index: LILACS (Americas) Main subject: Lepidoptera Country/Region as subject: South America / Uruguay Language: English Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2007 Type: Article Affiliation country: Uruguay Institution/Affiliation country: Universidad de la República/UY