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vol.63 número4The marine leech Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), parasitic on the angel shark Squatina spp. and sandtiger shark Carcharias taurus Rafinesque, 1810 (Chondrichthyes: Squatinidae, Carchariidae) in Southern Brazilian watersOccurrence and characterization of entomogen galls in plants from natural vegetation areas in Delfinópolis, MG, Brazil índice de autoresíndice de materiabúsqueda de artículos
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Brazilian Journal of Biology

versión impresa ISSN 1519-6984versión On-line ISSN 1678-4375


SANTOS, R. S. S. et al. Characterization of the imaginal reproductive diapause of Oebalus poecilus (Dallas) (Hemiptera: Pentatomidae). Braz. J. Biol. [online]. 2003, vol.63, n.4, pp.695-703. ISSN 1519-6984.

The state of development of the internal reproductive organs of male and female Oebalus poecilus (Dallas) as well as the body fat amount in the abdominal cavity during hibernation, of individuals sampled in bamboo litter in Eldorado do Sul (30º02'S and 51°23'W), RS, Brazil was investigated. Females and males showed the abdominal cavity filled with body fat in the beginning of the hibernation phase. The decrease in fat reserve level occurred from August on for males and from October on for females. Ovaries and testis doubled in length and tripled in width from immature to the reproductive phase. Male sexual maturation occurred in the hibernation sites while for females it occurred later on outside of the sites. Reproductive organ immaturity and abdominal body fat hypertrophy characterized the diapause of O. poecilus.

Palabras clave : overwintering; small rice stink bug; reproductive organs.

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