RFDDGPD6–The mature caterpillar resembles bird droppings to deter predators, and if that doesn't work they use their red osmeterium.
RMTREH1P–swallowtail (Papilio machaon), caterpillar with everted osmeterium and an insect, Germany
RMCN03E5–Orchard swallowtail caterpillar everting its osmeterium
RFP1DHHJ–Third instar Black swallowtail butterfly caterpillar on Dog Fennel, with its yellow osmeterium visible on its head for defense
RF2E3N3XJ–Osmeterium of Pipevine Swallowtail caterpillar in defensive posure
RMR2NR9P–Pipevine Swallowtail, Battus philenor, larva with osmeterium everted
RF2RFDYM5–Ambrax Swallowtail Butterfly Caterpillar, Papilio ambrax, on Citrus leaf, with osmeterium extended, wild, Malanda, Australia.
RMR0T0CF–Black Swallowtail, Papilio polyxenes, caterpillar with osmeterium partially everted
RM2NG7422–Butterfly caterpillar or Large Citrus Butterfly caterpillar. When disturbed, the caterpillars are inclined to rear up at the front, and briefly evert
RME07C0W–A larva of the Great Yellow Mormon butterfly
RFW2285K–Eastern Black Swallowtail Caterpillar (Papilio polyxenes)
RMCW85C7–Larva of the Thoas Swallowtail
RMDC12AW–Black Swallowtail caterpillar (Papilio polyxenes) feeding on parsley and displaying osmeterium .
RMBRP2K3–Mature larva of Citrus Swallowtail / Orange Dog with osmeterium extended in self defence (Papilio demodocus)
RM2A2AECG–Citrus swallowtail butterfly caterpillar on Lemon leaf everting osmeterium, (Papilio demodocus), Moreleta Park, Pretoria, South Africa.
RMBRP2K2–Mature larva of Citrus Swallowtail / Orange Dog with osmeterium extended in self defence (Papilio demodocus)
RMDA1RNJ–Horns (Osmeterium) of Old World Swallowtail (Papilio machaon) caterpillar.
RF2RFDYHA–Ambrax Swallowtail Butterfly Caterpillar, Papilio ambrax, on Citrus leaf, with osmeterium extended, wild, Malanda, Australia.
RMPFPCBP–Swallowtail Caterpillar (Papilio machaon) on green leaf showing osmeterium and antennae
RFDDPTM2–The mature caterpillar resembles bird droppings to deter predators, and if that doesn't work they use their red osmeterium.
RMEYPBMN–A caterpillar of the Citrus Swallowtail butterfly
RMENHA28–Orchard swallowtail butterfly caterpillar everting its osmeterium
RFKXCE33–Swallowtail Butterfly
RF2E3N47R–Pipevine Swallowtailm Battus philenor, caterpillar in defensive posure
RMG26K7T–A Spicebush Swallowtail larvae crawls on a host plant leaf in Florida.
RMD45477–Swallowtail butterfly on a purple flower,
RMD8W3F1–Black swallowtail caterpillar feeding on fennel in garden with purple flowers.
RM2NG744J–Butterfly caterpillar or Large Citrus Butterfly caterpillar. When disturbed, the caterpillars are inclined to rear up at the front, and briefly evert
RMD3AJ90–black and yellow Swallowtail butterfly, swallowtail, butterfly, butterflies, Papilionidae, Swallowtail with 550 species, Tropica
RMD53P00–Black Swallowtail butterfly family Papilionidae Omithoptera birdwing butterflies,
RFW2JAWH–Eastern Black Swallowtail Caterpillar (Papilio polyxenes)
RMD3AJ8W–Black colorful Swallowtail butterfly from family Papilionidae, black butterfly, butterfly, butterflies, swallowtail,
RM2A2AEC9–Citrus swallowtail butterfly caterpillar on Lemon leaf everting osmeterium, (Papilio demodocus), Moreleta Park, Pretoria, South Africa.
RMBRP2JX–Mature larva of Citrus Swallowtail / Orange Dog with osmeterium extended in self defence (Papilio demodocus)
RMD53NYT–Yellow Swallowtail butterfly large colorful in family Papilionidae sits on pink flower, Swallowtails species Papilio machaon,
RFDAHM4C–Common yellow swallowtail (Papilio machaon) caterpillar on a twig
RMPDW51A–The chrysalis stage of an Anise swallowtail butterfly caterpillar, Papil, silked to a tree branch, in the Cascade Mountains of central Oregon.
RF2AYD05B–Old World swallowtail butterfly caterpillar exhibiting its retractable horn-like defense organs osmeteria on a celery stalk with a dark clay red backg
RMEYPCDG–A caterpillar of the Citrus Swallowtail butterfly
RME44GAF–Orchard swallowtail caterpillar everting its osmeterium
RFKXCE35–Swallowtail Butterfly
RMP93B0P–A close up of the caterpillar or larva of an Anise Swallowtail butterfly, Papilio zelicaon, before it pupates. The yellow horns are osmeteria, used fo
RM2FNC8C3–Black Swallowtail Butterfly Larvae
RMG09B3M–Orange Dog Caterpillar
RMD8W3AT–Black Swallowtail caterpillar feeding on fennel in garden with purple flowers.
RM2NG744R–Butterfly caterpillar or Large Citrus Butterfly caterpillar. When disturbed, the caterpillars are inclined to rear up at the front, and briefly evert
RF2B1KCCA–A black swallowtail, papilio polyxenes, caterpillar eating carrot top leaves in a vegatable garden
RFR46CD3–Citrus swallowtail butterfly resting on a plant in Kirstenbosch National Botanical Garden in Cape Town.
RFDDGRPH–Orange Dog Caterpillar
RFJC0PKF–Larva stage of the Red dagger moth
RFDP39RG–swallowtail caterpillar
RM2A2AECC–Citrus swallowtail butterfly caterpillar on Lemon leaf everting osmeterium, (Papilio demodocus), Moreleta Park, Pretoria, South Africa.
RMBRP2JY–Mature larva of Citrus Swallowtail / Orange Dog with osmeterium extended in self defence (Papilio demodocus)
RMWTCDK7–Alarge and spectacular vividly coloured butterfly that frequents foest edges and often seen landing on muddy patches. red eye-spots on the hindwing ar
RFB5181G–Swallowtail butterflies are large, colorful butterflies which form the family Papilionidae.
RMEYPBNN–A caterpillar of the Citrus Swallowtail butterfly
RFE682GJ–Larva stage of the Red dagger moth
RMRGN5K7–. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. CUTWORM Fig. J. Showing osmeterium extruded at throat. ZEBRA CATERPILLAR Fig. K. Mature worm. (With permission of The MacMillan Company, from O'Kane, Injurious Insects, 1917, p. 171.) ATLANTIC CUTWORM Fig. L. Side and back views of the mature caterpillar. family and, except for differences in coloration, are much like garden cutworms. Most of them are common pests of other crops. All but the false armyworm do injury out of all proportion to the amount of their eating by cutting off flower buds, flowers, s
RMP93B09–A close up of the caterpillar or larva of an Anise Swallowtail butterfly, Papilio zelicaon, before it pupates. The yellow horns are osmeteria, used fo
RMG08GT3–Orange Dog Caterpillar
RM2NG7489–Orchard Swallowtail Butterfly caterpillar, Papilio aegeus, also known as or Citrus Swallowtail Butterfly caterpillar or Large Citrus Butterfly caterpi
RFJC0PK0–Larva stage of the Red dagger moth
RM2A2AECK–Citrus swallowtail butterfly caterpillar on Lemon leaf everting osmeterium, (Papilio demodocus), Moreleta Park, Pretoria, South Africa.
RMBRP2K1–Mature larva of Citrus Swallowtail / Orange Dog with osmeterium extended in self defence (Papilio demodocus)
RFB51824–Swallowtail butterflies are large, colorful butterflies which form the family Papilionidae.
RMEYPD9E–A pupating caterpillar of the Citrus Swallowtail butterfly
RFE682GG–Larva stage of the Red dagger moth
RMEYPD1H–A larva of the Queen Swallowtail butterfly
RMP93B0F–A close up of the caterpillar or larva of an Anise Swallowtail butterfly, Papilio zelicaon, before it pupates. The yellow horns are osmeteria, used fo
RMRGK7CP–. Bulletin - New York State Museum. Science. 760 NEW YORK STATE MUSEUM common " rue " and from fraxinella, and a shrub full of " thou- sands " of smaller ones was also reported. This caterpillar may attain a length of 2J inches. It is curiously mottled with shades of brown and with two large silvery white patches, one near the middle of the caterpillar, and the other at its posterior extremity, giving it a peculiar, blotched appearance, and making it resemble somewhat the droppings of a bird. It is well repre- sented, with its reddish, fetid osmeterium extended, as is the c
RFJC0PKG–Larva stage of the Red dagger moth
RFB5182Y–Swallowtail butterflies are large, colorful butterflies which form the family Papilionidae.
RFE682EM–Larva stage of the Red dagger moth
RMEYPD1K–A larva of the Queen Swallowtail butterfly
RMP93B03–A close up of the caterpillar or larva of an Anise Swallowtail butterfly, Papilio zelicaon, before it pupates. The yellow horns are osmeteria, used fo
RMRM563J–. Annual report of the Regents. New York State Museum; Science. 760 NEW YORK STATE MUSEUM common " rue " and from f raxinella, and a shrub full of " thou- sands ?' of smaller ones was also reported. This caterpillar may attain a length of 2-|- inches. It is curiously mottled with shades of brown and with two large silvery white patches, one near the middle of the caterpillar, and the other at its posterior extremity, giving it a peculiar, blotched appearance, and making it resemble somewhat the droppings of a bird. It is well repre- sented, with its reddish, fetid osmeterium ext
RFJC0PK4–Larva stage of the Red dagger moth
RFE682GE–Larva stage of the Red dagger moth
RMP93AYY–The underside and feet of the caterpillar or larva of an Anise Swallowtail butterfly, Papilio zelicaon, before it pupates. The yellow horns are osmete
RMPDW51J–The chrysalis stage of an Anise swallowtail butterfly caterpillar, Papil, silked to a tree branch, in the Cascade Mountains of central Oregon.
RMPDW511–The chrysalis stage of an Anise swallowtail butterfly caterpillar, Papil, silked to a tree branch, in the Cascade Mountains of central Oregon.