Sphinginae subfamily
Sphingini tribe:
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This species is possibly present (unreported) and larvae feed on tomatoes and go by the common name of
"Tomato Hornworms". |
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This species is confirmed for Union County.
I only see them occasionally on P.E.I. despite visiting lights frequently. |
 | The upperside of the forewing is dark grey to black with a
paler costa and pale area from the base to the wing's centre.
Prefered habitats include montane woodlands and mixed chaparral-type
vegetation. |
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Although unreported, I feel this species might be present
in the desert and in pinyon-juniper woodlands. |
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Sphinx vashti
USGS, the Snowberry Sphinx
The upperside of the forewing has a narrow black subterminal line
bordered by a white inverted V-shaped line on the outside, and a
black line running inwards from the apex of the wing.
It is most often found in montane woodlands and along streamcourses. |
Smerinthini Tribe:
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Pachysphinx modesta WO,
the Modest Sphinx or Poplar Sphinx,
This large poplar/willow feeder is possibly in Union County.
They are a heavy bodied species.
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This one is quite similar to Pachysphinx modesta, with modesta being smaller and darker.
There may be in Union County.
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The grey-blue eyespot of the hindwing gives this species its name.
Larvae feed on birches, willows, cherries and oaks.
The outer edge of the forewings is quite scalloped. |
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Paonias myops USGS,
the Small-eyed Sphinx
This small species is probably widespread and common. This species ranges across North America.
The hindwings have a small blue eyespot ringed with black on a yellow background.
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Smerinthus cerisyi USGS, the Cerisyi's
Sphinx or One-eyed Sphinx
If you have willows and poplars nearby, you've probably got populations of
the Cerisyi's Sphinx.
The hindwings are quite striking. |
 | Larvae feed on poplars, aspen and willows.
Note different shape of double arced forewing pm line compared to the straighter pm line of cerisyi, directly above.
S. ophthalmica has smoother scalloping of the fw outer margin.
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Macroglossinae subfamily
Dilophonotini tribe
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Hemaris diffinis USGS, the Snowberry Clearwing or Bumblebee Moth
This species is reported from Union County, and this day flying moth
is widely distributed in Oregon. |
Macroglossini tribe
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Arctonotus lucidus WO, the Pacific Green
Sphinx Moth or Bear Sphinx Found to the north, east, south and west, this species
is probably present.
It tends to be an early spring flier, on the wing in the early
evening. It comes to lights at night. |
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Hyles gallii WO,
the Bedstraw Hawk Moth or Gallium Sphinx
This species is not officially reported from Union County, but if
you have Gallium or Epilobium, you might have
populations of this species, but it is doubtful. |
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Hyles lineata USGS, the White-lined Sphinx
Dave McNeese sees this species regularly. It can be seen flying during the day,
into the evening and also at night.
The highly variable larvae are often found in people's gardens. |
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This species is officially reported from Union County, and this day flier,
April-June, prefering oak woodland and pine-oak woodland in foothills,
nectars at a variety of flowers in the afternoon.
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This day flier is not officially reported from Union, but it has been
found to the north and south and west in meadows near coniferous forests. |
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