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We investigated the effects of ten constant temperatures (20.0, 22.5, 25.0, 27.5, 30.0, 32.5, 35.0, 37.5, 39.0, and 41.0°C) on the development, survival, and reproduction of the psocid Liposcelis yunnaniensis Li & Li (Psocoptera: Liposcelididae). At 39.0 and 41.0°C, none
of individuals could develop successfully or reproduce. From 20 to 37.5°C, the development period from egg to adult ranged from 64.3 d at 20°C to 16.1 d at 35°C. The lower developmental threshold for egg, nymph, and combined immature stages were estimated at 15.08, 15.13, and 14.77°C,
respectively. After emergence the females went through a preoviposition period that ranged from 18.5 d at 22.5°C to 3.11 d at 35°C, whereas it was 16.3 d at 20°C. Liposcelis yunnaniensis produced most eggs at 35°C and the fewest at 22.5°C. The population reared at 35°C
had the highest intrinsic rate of increase, shorter mean generation time, and shortest population doubling time compared with other temperatures. According to Weibull frequency distribution, L. yunnaniensis reared at all the temperatures had type III survivorship curves (c < 1.0).
Based on life-table parameter estimations, we suggest that optimum range of temperatures for this species is from 25 to 37.5°C. These data give us useful information on population biology of L. yunnaniensis and can be used to better manage this species.
Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.