Osmeterium
Videos
The osmeterium is a defensive organ found in all papilionid larvae, in all stages. The organ is situated in the prothoracic segment and can be everted when the larva feels threatened. The everted orga
Osmeterium of Papilio xuthus Larva. Upper: Osmeterium partly everted. Lower: undisturbed
Papilio demodocus larva everting its osmeterium fully, and with one horn applying the repugnatorial secretion to the finger that irritated it
Swallowtail butterfly
Videos
Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, and include over 550 species. Though the majority are tropical, members of the family inhabit every continent except
Osmeterium
…The osmeterium is a defensive organ found in all papilionid larvae, in all stages. The organ is situated in the prothoracic segment and can be everted when the larva feels threatened. The everted organ resembles…
Papilio machaon Mitterbach 01
Short-horned baronia (Baronia brevicornis)
Mountain Apollo (Parnassius apollo), tribe Parnassiini
False Apollo (Archon apollinus), tribe Luehdorfiini