Jackson County

Sphingidae

Twenty-three Sphingidae species are listed in the USGS for Oregon. Not all of the species are reported (ten by USGS) or anticipated in Jackson County.

It is hoped that this checklist, with the thumbnails and notes, will help you quickly identify the moths you have encountered.

A WO" after the species name indicates that I have no confirmed reports of this species in Jackson County, but I (William Oehlke) expect that this moth is present.

Please help me develop this list with improved, documented accuracy by sending sightings (species, date, location), preferably with an image, via email to Bill Oehlke.

Sphinginae subfamily

Sphingini tribe:

Ceratomia undulosa USGS, the Waved Sphinx

This moth is recorded by USGS, but it is way out of its normal range. Unlikely!

It is named for the wavy lines on the forewings.

Manduca quinquemaculata WO, the Five-spotted Hawkmoth

This large bodied moth flies in tobacco fields and vegetable gardens (potatoes, tomatoes) and wherever host plants are found.

Sphinx chersis USGS, 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.

Sphinx perelegans USGS, the Elegant Sphinx

Sphinx perelegans adults fly in montane woodlands and mixed chaparral-type vegetation as a single brood in the north, with adults mainly on the wing in June and July.

It flies from dusk until after midnight.

Sphinx sequoiae WO, the Sequoiae Sphinx

This species is not reported in Jackson but is reported in Josephine.

Adults fly as a single brood in the desert and in pinyon-juniper woodland from May to August.

Sphinx vashti USGS, the Snowberry Sphinx,

Snowberry Sphinx adults fly as a single brood in montane woodlands and along prairie streamcourses from April to August.
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 at the apex.

Smerinthini Tribe:

Paonias excaecata WO, the Blinded Sphinx,

The outer margin of the forewing is quite wavy. There is a dark cell spot and a dark oblique line mid wing from the costa almost to the inner margin. Basic ground colour is pinkish brown.

Flight would be June-July.

Pachysphinx modesta WO, the Modest Sphinx or Poplar Sphinx,

This large poplar/willow feeder is probably rare in Jackson County, near the southern most limit of its western range. They are a heavy bodied species.

Pachysphinx occidentalis WO, the Big Poplar Sphinx

This one is quite similar to Pachysphinx modesta, with modesta being smaller and darker.

Moths should be on the wing from June-August.

Smerinthus cerisyi USGS, the Cerisyi's Sphinx or One-eyed Sphinx,

Larvae feed on poplars and willows.

Flight would be from late May-July as a single brood.

Macroglossinae subfamily


Dilophonotini Tribe:

Hemaris diffinis USGS, the Snowberry Clearwing or Bumblebee Moth,

The moth flies along forest edges and in meadows, gardens and brushy fields. Day-flying adults nectar at lantana, dwarf bush honeysuckle, snowberry, orange hawkweed, thistles, lilac, Canada violet, etc.

Philampelini Tribe:

Eumorpha achemon USGS, the Achemon Sphinx

This moth is reported for Jackson, but would probably be rare in the northern most limit of its western range.

Fight would be from June to August.

Macroglossini Tribe:

Arctonotus lucidus USGS, the Pacific Green Sphinx Moth or Bear Sphinx

This species is confirmed in Jackson County.
It tends to be an early spring flier, on the wing in the early evening. It comes to lights at night.

Hyles lineata USGS, the White-lined Sphinx

Adults usually fly at dusk, during the night, and at dawn, but they also fly during the day over a wide variety of open habitats including deserts, suburbs, and gardens.

Proserpinus clarkiae USGS, Clark's Sphinx,

Adults fly in the afternoon from April-June in oak woodland and pine-oak woodland in foothills, nectaring from chia, heartleaf milkweed, golden currant, bluedicks, fairyfans, vetches, thistles, hedgenettles, etc.

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This page is brought to you by Bill Oehlke and the WLSS. Pages are on space rented from Bizland. If you would like to become a "Patron of the Sphingidae Site", contact Bill.

Please send sightings/images to Bill. I will do my best to respond to requests for identification help.