The oviposition behavior of two parasitoid wasps of Fagineura crenativora (Tenthredinidae), Endasys sp. and Aptesis sp. A (Ichneumonidae, Cryptinae; Taniwaki & Watanabe, 2012), were studied in laboratory experiments at room temperature. Both species initially dug into the soil to search for cocoons of their host. On the detection of cocoons, they laid their eggs inside the cocoon; however, in Endasys sp., egg laying occurrs only if the host cocoon has not been previously parasitized by larvae or pupae of other parasitoids. The eggs of parasitoids are ca. 2 mm and ca. 1 mm long in Endasys sp. and Aptesis sp. A, respectively, and can be easily dropped from the body of host inside cocoons.

We observed egg-brooding behavior in two Japanese millipedes, Eutrichodesmus elegans (Miyoshi, 1956) (Polydesmida: Haplodesmidae) and Cryptocorypha sp. (Pyrgodesmidae), under field conditions. In the former, females remained curling the body around the soil-made mound-like egg-chamber (containing eggs) constructed on dead leaves in the litter. In the latter, a female brooded an egg-mass under the bark of a decaying fallen log.

2011年3月の東日本大震災において壊滅的な被害を受けた岩手県陸前高田市立博物館の昆虫標本を救済するプロジェクトが，岩手県立博物館を中心に全国の博物館，昆虫施設の協力で実施された．千葉県立中央博物館では被災した昆虫標本約1,593点を受け入れて救済作業を実施した．