View source for osmeterium

{{Concept
|label=osmeterium
|lexical category=noun; plural <b>osmeteria</b>
|etymology=Greek <i>osme</i>, odor
|definition=([[Arthropoda]]: [[Insecta]]) A fleshy, tubular, eversible [[pouch]] usually V or Yshaped, sometimes arising from cephalo-dorso-[[meson]] of the [[prothorax]] of Papilionidae caterpillars, that produce a penetrating odor; also appearing elsewhere in the bodies of other forms.
}}
{{Concept scheme relation
|scheme=Dictionary of Invertebrate Zoology
}}