Comparing the lopsided Hermitian/skew-Hermitian splitting (LHSS) method and Hermitian/skew-Hermitian splitting (HSS) method, a new criterion for choosing the above two methods is presented, which is better than that of Li, Huang and Liu [Modified Hermitian and skew-Hermitian splitting methods for non-Hermitian positive-definite linear systems, Numer. Lin.
The influence of female age on male mating preference and reproductive success has been studied using a promiscuous cabbage beetle, Colaphellus bowringi Baly (Coleoptera: Chrysomelidae). In a simultaneous choice test, middle-aged females had significantly greater mating success than young and old females. In single pair trials, when paired with middle-aged… (More)
Thyrassia penangae enters winter diapause as a prepupa in a cocoon. Photoperiodism of diapause induction was systematically investigated in this moth. The photoperiodic response curves under 24-h light-dark cycles showed that this insect is a typical long-day species. The critical daylength was 13h 30min at 25 degrees C, 13h at 30 degrees C and 12h 20min at… (More)
The pine caterpillar, Dendrolimus punctatus Walker (Lepidoptera: Lasiocampidae), is one of the most serious defoliators of pine trees (Pinus spp.) in China. Despite this, little is known with regard to the reproductive behavior of this insect. In the present study, we investigated the circadian rhythm of adult eclosion, mating and oviposition under… (More)