Halyomorpha halys (Hemiptera: Pentatomidae) 是一种新出现的害虫，于 2012 年在加拿大安大略省建立。Halyomporpha halys成年后在人为结构中越冬。我们调查了安大略省西南部H. halys的耐寒性、水分平衡和能量的季节性变化。我们还在允许的温度下在实验室饲养的短日照动物中诱导滞育，并比较了滞育和非滞育个体之间的耐寒性、水平衡、能量学、代谢和气体交换。在安大略省外越冬的Halyomorpha halys全部死亡，但在庇护栖息地越冬的大多数幸免于难。我们确认越冬H. halys对寒冷敏感。在冬天，安大略H. halys 将它们的过冷点降低到 c。-15.4 °C，50% 在 -17.5 °C 下暴露 1 小时后存活。它们减少了冬季的水分流失率，并且似乎不会将脂质或碳水化合物储备显着消耗到可能导致饥饿的水平。总体而言，H. halys似乎依赖建筑结构和其他缓冲微生境在安大略省成功越冬。实验室饲养的滞育H. halys 的过冷点低于非滞育对应物，但 LT 50不会因滞育诱导而增强。滞育H. halys通过减少呼吸和表皮水分流失，它们在干燥条件下的存活时间是非滞育的 3-4 倍。滞育H. halys似乎没有比未滞育的H. halys积累更多的脂质或碳水化合物，但确实具有较低的代谢率，并且更可能表现出不连续的气体交换。
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Cold tolerance, water balance, energetics, gas exchange, and diapause in overwintering brown marmorated stink bugs
Halyomorpha halys (Hemiptera: Pentatomidae) is an emerging pest which established in Ontario, Canada, in 2012. Halyomporpha halys overwinters in anthropogenic structures as an adult. We investigated seasonal variation in the cold tolerance, water balance, and energetics of H. halys in southwestern Ontario. We also induced diapause in laboratory-reared animals with short daylength at permissive temperatures and compared cold tolerance, water balance, energetics, and metabolism and gas exchange between diapausing and non-diapausing individuals. Halyomorpha halys that overwintered outside in Ontario all died, but most of those that overwintered in sheltered habitats survived. We confirm that overwintering H. halys are chill-susceptible. Over winter, Ontario H. halys depressed their supercooling point to c. −15.4 °C, and 50% survived a 1 h exposure to −17.5 °C. They reduce water loss rates over winter, and do not appear to significantly consume lipid or carbohydrate reserves to a level that might cause starvation. Overall, it appears that H. halys is dependent on built structures and other buffered microhabitats to successfully overwinter in Ontario. Laboratory-reared diapausing H. halys have lower supercooling points than their non-diapausing counterparts, but LT50 is not enhanced by diapause induction. Diapausing H. halys survive desiccating conditions for 3–4 times longer than those not in diapause, through decreases in both respiratory and cuticular water loss. Diapausing H. halys do not appear to accumulate any more lipid or carbohydrate than those not in diapause, but do have lower metabolic rates, and are slightly more likely to exhibit discontinuous gas exchange.