Abstract
The rice leaf bug, Trigonotylus caelestialium (Kirkaldy), is a plant feeder which feeds on gramineous grasses. It has been confirmed that the conspecific eggs are sucked dry by female and male adults. This egg predation indicates the bug is omnivorous. Fecundity and longevity of adults served wheat seedlings, as both a food source and oviposition site, were examined at 30°C, 25°C and 20°C with a 16-h photophase. The mean preoviposition period at 20°C was significantly longer than at 30°C and 25°C. The averages of the total number of eggs laid per female were 127.3, 107.7 and 107.6 at 30°C, 25°C and 20°C, respectively. Both females and males lived longer at lower temperatures. Males tended to live longer than females under all temperature conditions.
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