The development of Tibraca obscurata Bergroth and T. limbativentris Stal was studied in rice in southwestern Colombia. Tibraca limbativentris required more time to complete development than T. obscurata. Females of T. limbativentris required more time to complete development than males, but development of T. obscurata was similar between sexes. Tibraca limbativentris females live significantly longer than males. Tibraca limbativentris oviposited over 200 eggs in an 86-day oviposition period. The time from egg deposition to eclosión (egg incubation period) was the same (6.5 d) in the two sexes.
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