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An ootheca (pl. ''oothecae'' ) is a type of egg mass made by any member of a variety of species (usually insects or mollusks). The word is a Latinized combination of ''oo-'', meaning "egg", from the Greek word ''ōon'' (cf. Latin ''ovum''), and ''theca'', meaning a "cover" or "container", from the Greek ''theke''. Ootheke is Greek for ovary. An ootheca usually contains many eggs surrounded by a foam of protein which may then harden into a tough casing for protection. Notable ootheca-making insects are the mantis and cockroach. ==Image gallery== File:Cockroach_egglaying_1.jpg|Female cockroach (''Periplaneta fuliginosa'') with ootheca Image:Blatella germanica cdc.jpg|Female cockroach ootheca nymphs emerging from their ootheca --> Image:Mantis ootheca Sliced open (Hierodula patellifera).jpg|Sagittal section of mantis ootheca (''Hierodula patellifera'') already hatched out File:Praying_Mantis_(Mantis_religiosa_religiosa)_Ootheca_02.jpg|Praying mantis (Mantis religiosa) Ootheca in Guelph, Ontario, Canada. File:Praying_Mantis_(Mantis_religiosa_religiosa)_Ootheca_06.jpg|Damaged praying mantis (Mantis religiosa) ootheca in Guelph, Ontario, Canada. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ootheca」の詳細全文を読む スポンサード リンク
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