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Life Cycle of Amblyomma romitii (Acari: Ixodidae) Under Laboratory Conditions
G A Landulfo1, H R Luz2, J S Sampaio2
1Special Laboratory of the Zoological Collection, Butantan Institute, São Paulo, SP, Brazil (gabriel.landulfo@globo.com; darci.battesti@butantan.gov.br), Department of Animal Parasitology, Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil (hermesluz@globomail.com; janio_bio@yahoo.com.br; faccinijlh@globo.com), and.
Abstract:
The life cycle of Amblyomma romitii Tonelli-Rondelli, 1939 is reported for the first time, using rabbits (Oryctolagus cuniculus) for larvae and capybara (Hydrochoerus hydrochaeris) for nymphs and adults, as experimental hosts. Developmental periods of free-living stages were observed in an incubator at 27 ± 1°C, 80 ± 10% relative humidity (RH), and 24-h darkness. The life cycle of A. romitii in the laboratory could be completed in an average period of 216.4 d. The overall sex ratio (M:F) was 1:1.4. The results showed that rabbits are quite suitable as experimental hosts for the larval stages of A. romitii, while capybaras are suitable experimental hosts for nymphs and adults.
