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Encyclopedia > Ootheca
Female cockroach (Blatella germanica) with ootheca
Female cockroach (Blatella germanica) with ootheca
Mantis ootheca
Mantis ootheca

An ootheca (pl. oothecae) is a type of egg mass made by any member of a variety of species (usually insects or mollusks). Image File history File links Download high-resolution version (700x713, 61 KB) Female Blatella_germanica with ootheca, taken from the Public Health Image Library (PHIL) of the Center of Desease Control (ID#:6321) File links The following pages on the English Wikipedia link to this file (pages on other projects are... Image File history File links Download high-resolution version (700x713, 61 KB) Female Blatella_germanica with ootheca, taken from the Public Health Image Library (PHIL) of the Center of Desease Control (ID#:6321) File links The following pages on the English Wikipedia link to this file (pages on other projects are... Image File history File links Download high-resolution version (888x666, 136 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Praying mantis Ootheca User:Woggly/praying mantis gallery ... Image File history File links Download high-resolution version (888x666, 136 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Praying mantis Ootheca User:Woggly/praying mantis gallery ... In most birds and reptiles, an egg (Latin ovum) is the zygote, resulting from fertilization of the ovum. ... Orders Subclass Apterygota Symphypleona - globular springtails Subclass Archaeognatha (jumping bristletails) Subclass Dicondylia Monura - extinct Thysanura (common bristletails) Subclass Pterygota Diaphanopteroidea - extinct Palaeodictyoptera - extinct Megasecoptera - extinct Archodonata - extinct Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Blattodea (cockroaches) Mantodea (mantids) Isoptera (termites) Zoraptera Grylloblattodea Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, crickets... Classes Caudofoveata Aplacophora Polyplacophora - Chitons Monoplacophora Bivalvia - Bivalves Scaphopoda - Tusk shells Gastropoda - Snails and Slugs Cephalopoda - Squids, Octopuses, etc. ...


The word is a combination of oo-, meaning “egg”, from the Greek word oion, and theca, meaning a “cover” or “container”, from the Greek theke.


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 mantid and cockroach. A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... A praying mantis, or praying mantid, is the common name for an insect of the order Mantodea. ... Families Blaberidae Blattellidae Blattidae Cryptocercidae Polyphagidae Nocticolidae Cockroaches (or simply roaches) are insects of the Order Blattodea. ...


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  Results from FactBites:
 
German Cockroach (687 words)
The ootheca is approximately 8mm in length by 3mm in width, which in relation to the female is large.
The ootheca shows a sequence of colour changes, from a pale white in the early stage, through a pink colour after a few hours, then to a light brown before becoming a deep chestnut brown after a day or so.
The ootheca is carried for an average of ten days, although this incubation period may be shortened by a day and a half for each degree F rise.
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