Sphinginae subfamily
 Sphingini tribe:
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Larvae feed on plants in the Convolvulaceae family, especially 
Ipomoea batatas (sweet potato) and in the Solanaceae family, 
especially (Datura) (jimsonweed) and related plants in the 
Americas. There is also a brown form. Look for very large, dark 
spiracular circles.
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Larvae feed on ash (Fraxinus] of the Oleaceae family. 
probably rare  
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 Cocytius antaeus, 
USGS The Giant Sphinx,  
 stray.
In the last instars, larvae are uniform green with a dark purple 
center back line and a very sharp white posterior side slash with 
some dark green on both sides of it.  very unlikely in larval stage
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Dolbogene hartwegii 
Jean Haxaire reports that larvae feed on Tecoma stans. 
Very similar to larva of Ceratomia hageni but slenderer. 
Horn is granulose and pale blue.  
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  |  Istar Sphinx larvae feed primarily on mints (Salvia). 
Larvae can be considerably darker as per the image at top of the page. 
I think istar, separatus and smithi are all being 
reassigned to the Lintneria genus.
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  |  Salvia greggii has been confirmed as a larval host 
by Robert A. Behrstock. 
Jim Tuttle, tentative id, writes, "All of the 
penultimate instars of both Lintneria (Sphinx) istar and 
Lintneria (Sphinx) separatus that I have reared 
have been mundane green." 
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 | Larvae feed on mints (Salvia) and are mottled 
white and grey-brown with a purplish tint. possible but generally more easterly
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  | Prominent, extended side slashes determine this species. 
Yellow side 
slashes often occur on larvae feeding on foliage with yellowish 
underside veins.  In the penultimate instar,  the anterior three 
slashes are accentuated. (stray)
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Larvae feed on Verbesina gigantea, Lasianthaea fruticosa, 
Eupatorium albicaule, Viguiera dentata and 
Eupatorium albicaule of the Asteraceae family, 
Lantana camara of the Verbenaceae family, and probably on 
plants from the families Solanaceae, and Bignoniaceae.
Helianthus annuus and Jacaranda caroba have also been
 reported as larval hosts.
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Larvae feed on plants in the nightshade 
(Solanaceae): Cestrum glanduliferum, Cestrum racemosum, Solanum 
accrescens and Solanum hazenii are used in Costa Rica. 
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The caterpillars are called Tomato Hornworms and each has a black horn at the end of the abdomen. 
 Larvae feed on potato, tobacco, tomato, and other plants in the 
nightshade family (Solanaceae). There is also a very beautiful brown 
form to the left.
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Manduca rustica 
USGS/AF/SF/KR, the Rustic Sphinx 
The caterpillar has numerous white nodules on top of the thorax and 
seven pairs of oblique, blue-gray stripes along the side of the body. 
The horn is white at the base and blue-gray at the tip. Many hosts 
are utilized. 
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Manduca rustica fifth instar on Desert Willow, Tucson, September 17, 2011, 100mm, Karen Riggs. 
Manduca rustica on Desert Willow, Las Cienegas NCA, September 15, 2010, 75mm, David Bygott. 
Manduca rustica, Tucson, August 25, 2011, Sue Fehlman
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Tobacco Hornworms, equipped with a red-tipped horn at the end of the 
abdomen, are true gluttons and feed on tobacco and tomato, and 
occasionally potato and pepper crops and other plants in the 
nightshade family (Solanaceae). 
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 Larval hosts are unknown, but larvae probably feed on Lycium 
in the nightshade family (Solanaceae). 
Note the strong oblique black lines and the black anal horn. 
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  The larvae are pale bluish green. The head has a pair of yellow 
lateral bands meeting at the apex. 
Larval hosts are ash, lilac, privet, cherry, and quaking aspen. 
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  | Larval hosts are Alligator juniper (Juniperus deppeana) 
and other juniper species.  It is amazing to me how well the larval 
spiracular patches and false feet match 
the pattern and colour of the juniper bark.
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  |  Larvae feed on New Mexican forestiera 
(Forestiera neomexicana), on Forestiera angustifolia 
and on little leaf ash (Fraxinus gooddingii) in the Oleaceae 
family. There are green and dark forms and all larvae tend to darken 
just before pupation.
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Smerinthini Tribe:
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Larvae feed on cottonwood and poplar (Populus) and willow 
(Salix).  
Larvae are very chunky with little to distinguish them
from Pachysphinx modesta.
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Paonias myops
 USGS, 
the Small-eyed Sphinx  
Wild cherry species are the favorites as larval 
foodplants, but eggs will also be deposited on birches and other
forest trees.   To the left a second/third instar larva rests on pin 
cherry.  
The "red heart" marking readily identifies this species.
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Smerinthus cerisyi 
USGS, 
Cerisy's Sphinx;
Cerisyi larvae greatly resemble modesta larvae, both being pale 
green, with granular skin, pale lateral diagonal lines, faint red 
spiracular circles, and very pale longitudinal lines running from the 
head to a more pronounced anal diagonal line.
Larvae have green heads bounded dorsally with a pale yellow 
inverted "V".
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Smerinthus saliceti 
USGS, the Salicet 
Sphinx, flies in valleys and along streamsides from Mexico City north 
to west Texas, southern Arizona, and extreme southern California. 
There are two colour morphs, one a pale green and one lime green.
Larvae feed on willow (Salix) or poplar (Populus). 
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Macroglossinae subfamily 
Dilophonotini tribe:
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Larvae feed on various plants in the dogbane family 
(Apocynaceae): Rauvolfia ligustrina, Rauvolfia tetraphylla, 
Stemmadenia obovata.  There is also a brown form.
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Larvae feed on papaya (Carica papaya), Cnidoscolus 
angustidens, poinsettia (Euphorbia pulcherrima),
 guava (Psidium species)  and 
 saffron plum (Bumelia angustifolia/Bumelia celastrina). 
 Manilkara bahamensis,
 Willow Bustic (Bumelia salicifolia) 
and Painted Leaf (Poinsettia heterophylla) are also hosts. 
Nice socks! Larvae show considerable variation. 
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Erinnyis obscura, the Obscure Sphinx, 
 USGS 
Larvae feed on Rauvolfia ligustrina, Rauvolfia tetraphylla, 
Stemmadenia obovata, Philibertia, Cynanchum, papaya 
(Carica papaya), Asclepiadaceae, Blepharodon mucronatum, 
White vine (Sarcostemma clausum) and Morrenia odorata.
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Larval host plants include Snowberry (Symphoricarpos), 
honeysuckle (Lonicera), Coralberry, viburnums, high bush cranberry and hawthorn (Crataegus). 
Horn is black with a slightly lighter base. This western species was formerly classified as 
H. diffinis or H. senta. Those species west of the Continental Divide are now classified as
H. thetis. 
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Philampelini tribe:
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 Larvae feed upon Grape (Vitis), Virginia Creeper 
(Parthenocissus quinquefolia) and other vines and ivies 
(Ampelopsis). 
 
Larvae occur in both a light (green) form and a darker (tan/brown) 
form. Note six "segmented" oblique lines.
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In Eumorpha satellitia the white panels are completely 
enclosed in black whereas in E. vitis the ends of the black 
panels remain open. Also, satellitia has a faint subdorsal 
longitudinal stripe that touches the top of the white panels that is 
lacking in vitis. I suspect there is also a green form.
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Larvae occur in both green and a darker brown form. The head and some 
thoracic segments are often retracted when the larva is disturbed. 
Larvae feed on grape foliage.
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Eumorpha vitis
 USGS,  
the Vine Sphinx 
Eumorpha vitis vitis larvae feed upon grape foliage (Vitis) and
 other vines (Cissus): Cissus pseudosicyoides
 and Cissus rhombifolia and Cissus sicycoides.
I suspect there would be a brown form.
Note five, smooth, narrow, oblique white lines.
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Macroglossini tribe:
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Hyles lineata 
 USGS, the White-lined Sphinx
Larvae are highly varied and feed on a great diversity of plants 
including willow weed (Epilobium), four o'clock (Mirabilis), 
apple (Malus), evening primrose (Oenothera), elm 
(Ulmus), grape (Vitis), tomato (Lycopersicon), 
purslane (Portulaca), and Fuschia.  
All larvae seem, however, to have the red/black swellings split by
dorso-lateral lines.   |   
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The larval hostplants are documented as Boerhaavia species 
(at least two--B. coccinea and coulteri have produced 
larvae). Boerhaavia is in the plant family Nyctaginaceae. There 
is a pale green form.
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Larvae probably feed on (Onagraceae) including evening primrose 
(Oenothera), gaura (Gaura), and willow weed 
(Epilobium). 
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There is a single large eye on the thorax and six white circles down 
the side. There are extensive bands of white dots girdling the 
abdomen.
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