Osmeterium - Wikipedia
The osmeterium is a defensive organ found in all papilionid larvae, in all stages. [1] The organ is situated in the prothoracic segment and can be everted when the larva feels threatened. The everted organ resembles a fleshy forked tongue (not unlike a snake tongue), and this along with the large eye-like spots on the body might be used to ...
What does an osmeterium smell like? Does the smell differ …
2014年12月23日 · An osmeterium is a defensive organ found on Swallowtail butterfly larvae, and is unique to the family Papilionidae. In the pictures to the left, the osmeterium is highlighted in red. It is exerted when the caterpillar is harassed by a predator, and has a pungent odor which drives the predator away.
THE OSMETERIUM: SPOTLIGHT ON CATERPILLAR ANATOMY
2016年1月6日 · When the caterpillar is squeezed, poked, or prodded, out pops the osmeterium! It emerges from the caterpillar's thorax, just behind the head, and may mimic a forked tongue, helping the caterpillar look more like a snake. All swallowtail species have an osmeterium.
Mode of action, chemistry and defensive efficacy of the osmeterium …
2023年4月24日 · The osmeterium is a unique organ in larvae of Papilionidae (Lepidoptera), which is everted upon disturbance, secreting odoriferous volatiles.
On Being a Caterpillar: Structure, Function, Ecology, and Behavior
2022年4月23日 · The best-studied caterpillar exocrine structure may be the dorsal osmeterium of Papilionidae, a fleshy horn-like protrusion everted from just behind the head capsule; it also serves a defensive role, delivering a potpourri of propionic …
osmeterium, osmeteria - BugGuide.Net
2024年8月26日 · osmeterium noun, plural osmeteria - the large colored V-shaped fleshy process which, in the caterpillars of the swallow-tailed butterflies (Papilionidae), can be extruded from a transverse slit on the dorsal surface of the prothoracic segment when alarmed.
Mode of action, chemistry and defensive efficacy of the osmeterium …
2023年4月24日 · Here, using larvae of the specialized butterfly Battus polydamas archidamas (Papilionidae: Troidini), we aimed to understand the mode of action of the osmeterium, the chemical composition and origin of the secretion, as well as its defensive efficiency against a natural predator.
Morphology, ultrastructure, and chemical compounds of the osmeterium …
2018年5月11日 · The osmeterium, found in papilionoid larvae, is an eversible organ with an exocrine gland that produces substances in response to the mechanical disturbances caused by natural enemies.
Mode of action, chemistry and defensive efficacy of the osmeterium …
2023年4月24日 · The osmeterium, found in papilionoid larvae, is an eversible organ with an exocrine gland that produces substances in response to the mechanical disturbances caused by natural enemies.
Osmeterium Definition & Meaning - Merriam-Webster
The meaning of OSMETERIUM is a protrusible glandular process of swallowtail larvae that emits a disagreeable odor for defensive purposes.