Sphinginae subfamily
 Sphingini tribe:
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This species has been enountered in Hartford County 
as a stray from much further south. The moth is a very strong 
flier and is frequently encountered far north of its usual range.
It might rarely be seen in Tolland County.
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Ceratomia amyntor 
 WO, 
the Elm Sphinx or Four-horned Sphinx
The upperside of the forewing is brown with dark brown and white 
markings including a white costal area near the wing base, dark 
streaks along the veins, and a white spot in the cell.
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The upperside of the forewing is yellowish brown with no white 
markings, but there are indistinct black lines and dashes.   
The larvae feed in large groups and are much more 
spectacular than the moths.  Catalpa is the larval host.   |   
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The upperside of the forewing is pale brownish gray with wavy black 
and white lines and a black-outlined white cell spot.
Note black and white collar separating thorax from abdomen.  |   
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The upperside of the forewing is dark brown with a dusting of white 
scales. Some moths have patches of reddish or yellowish brown on the 
wings. 
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The upperside of the forewing is gray with heavy black bands. The 
upperside of the hindwing is brownish gray with no markings.
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The upperside is of the forewing is gray with two (sometimes one or 
three) black dashes near the wing center; other markings are usually 
diffuse. The upperside of the hindwing is a uniform brown-gray. 
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 This species is possibly  present in Tolland County. 
The upperside of the forewing is gray-brown with wavy lines, black dashes, and one or 
two small white spots near the center of the costa.
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The upperside of forewing is gray to grayish brown with a black line 
running from the middle of the costa to the middle of the outer 
margin; the line may be broken near the margin. There is a splash of 
brown around the cell spot.
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The moth abdomen usually has five but sometimes six pairs of yellow 
bands. The upperside of the forewing is blurry brown and gray. If you 
grow tomatoes, you have probably encountered it.
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The abdomen usually has six pairs of yellow bands, broken across the 
back. The sixth set of markings is quite small.
The upperside of the forewing has indistinct black, brown, and white 
markings. 
Larvae get very large and can strip a tomato plant.  |   
  | The upperside of the forewing is gray with indistinct black and 
white markings. There is a series of black dashes 
from the base to the tip, and a small white cell spot.
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Sphinx canadensis 
WO, 
Sphinx canadensis, the Canadian Sphinx, is not common, and is not 
often reported anywhere.
Larval hosts are white ash (Fraxinus americana) and blueberry 
(Vaccinium). 
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Sphinx chersis 
 WO, the Northern Ash Sphinx or Great Ash 
Sphinx
The upperside of the forewing is soft dark gray to blue-gray with 
a series of black dashes, one of which reaches the wing tip.  
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 This species is not officially recorded, but I suspect it is 
present. We have 
them on P.E.I., but I do not see them nearly as frequently
as I see the other Sphingidae.  |   
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 The upperside of the forewing ranges from brown with black borders 
through brownish gray with paler borders to pale gray with no 
borders. Dashes, submarginal line, and cell spot are usually weak.
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The lower forewings are predominantly brownish-yellow with a fairly wide dark bar along the inner margin. At rest the wings hug the body, 
giving the moth a long slender look.
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Sphinx luscitiosa  
 USGS, 
the Canadian Sphinx or 
Clemen's Sphinx  
 The upperside of the forewing is yellowish gray in males and pale gray with a faint yellow tint in females. In both sexes, the dark border on the outer margin widens as it approaches the inner margin. 
The upperside of the hindwing is deep yellow in males, pale yellow in females; both with a wide black border.  |   
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If you have blueberries in the woods, then you probably have the Poecila Sphinx.
They are pretty common here on Prince Edward Island, but don't fly 
too far south of Massachusetts, being replaced by  Sphinx gordius
in southern Connecticut.  |   
Smerinthini Tribe:
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The adults are also highly variable; sometimes wings of an individual 
may be all one color or may have several colors, ranging from pale to 
dark brown, and may have a white or pink tinge. 
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This moth has a large, heavy body, and females can be remarkably 
plump. Generally found more to the north.
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Paonias astylus, the Huckleberry Sphinx (wingspan 55-65 mm), ranges 
from Maine south to Florida, west to Missouri and Mississippi. 
It tends to be uncommon.
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Named for the dull grey-blue spot in the hindwing, this moth has a 
wide distribution and is probably common in Hartford County. 
I regularly see them on Prince Edward Island, and they are reported 
as far south as Florida.  |   
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Named for the small eye-spot in the hindwing, this moth has a wide distribution 
and is probably common in Hartford County. 
I regularly see them on Prince Edward Island, and they are reported as far south as Florida.
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This moth is widely distributed and fairly common so I suspect it is 
in Hartford County. 
Along the East Coast, it flies from P.E.I. to Florida.
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This is one of the most common Sphingidae on Prince Edward Island. It flies south into the eastern US as far south as northern New Jersey.
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Macroglossinae subfamily 
Dilophonotini tribe:
 
See  Hemaris comparison to help determine the next three species. 
 
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Hemaris thysbe 
WO, the Hummingbird Clearwing 
It is not difficult to see why many gardeners would mistake an 
Hemaris thysbe moth for a small hummingbird as it hovers, sipping nectar from flowers through a long feeding tube.
They are widely distributed in the east from P.E.I. to Florida.  |   
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Hemaris gracilis 
 USGS, 
The Slender Clearwing or Graceful Clearwing is distinguished from similar species by a pair of red-brown bands on the sides of the thorax, 
which varies from green to yellow-green dorsally and sometimes brown with white underneath. They have a red abdomen and red legs.  |   
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Hemaris diffinis
 USGS,  the Snowberry Clearwing or 
Bumblebee Moth:
Hemaris diffinis is a very variable species, but almost always the abdomen sports contrasting black and yellow hairs, 
the ventral surface being quite black. The legs also tend to be quite dark and there is a black mask running across the eye 
and along the sides of the thorax.
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Philampelini tribe:
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This moth is not officially reported for Hartford,
 but it is fairly often reported 
along the coast from southern New Jersey 
to central Maine.  
Note the differences between this moth and the Pandorus Sphinx.  |   
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If you have Grape or Virginia Creeper nearby, then you probably have 
this species.
I often get asked to identify larvae from areas where they have not 
previously been reported.
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Macroglossini tribe:
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This day flier is widely distributed.
  If you have Virginia Creeper, you 
probably have the Nessus Sphinx.  Two bright, distinct, narrow 
yellow 
bands are often visible on the abdomen.
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 They are common in New Jersey and common
here on  Prince Edward Island. 
You will often see this species listed as Darapsa pholus, 
especially in older literature. It is almost certainly present.
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Darapsa myron 
WO, the Virginia Creeper Sphinx or the Grapevine Sphinx 
This moth is recorded on the U.S.G.S. site for Hartford County.
 
It is widely reported as far north as southern Maine. If you have the 
foodplants indicated in the common names, you probably have this 
species nearby.   |   
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If you have hydrangea growing near a stream, then you may have the 
Hydrnagea Sphinx.  It has not been widely reported, however, and 
probably is uncommon.
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The moth's outer margin of the forewing is deeply scalloped. 
The upperside is light brown with dark brown markings. 
There is a small black and white spot near the tip. 
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Hyles gallii 
 USGS, the Bedstraw Hawk Moth 
or Gallium Sphinx 
This species is reported in Hartford County.
 Some years I see them on P.E.I., some years, I do not.
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Hyles lineata 
 WO, the White-lined Sphinx
It is a strong migrator from the south, 
and there are records from the east, west and to the north.   |   
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This moth is very much under reported. It is a 
rapid day flier so is probably not in too many collections.  Grape is a popular larval host.
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Xylophanes tersa 
possible as a rare stray, 
the Tersa Sphinx
This moth is much more common to the south. It is a strong migrant, 
however and has been recorded in nearby Hartford County.
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