The oothecae of this species were abundant in late May and June.
这个物种得卵囊在5月下旬至6月最多。
Observation on Oothecae of Blattella germanica and Periplaneta americana using light microscope and SEM
德国小蠊，美洲大蠊卵荚光镜与扫描电镜观察
Effect of temperature on the survival of oothecae.
说明温度对卵鞘存活率有明显影响。
Studies on the Oothecal Parasites of Cockroaches in Zhejiang Province
浙江蜚蠊卵荚寄生蜂的调查研究
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