Sphinginae subfamily
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 | Manduca quinquemaculata WO, the Five-spotted HawkmothThis large bodied moth flies in tobacco fields and vegetable gardens (potatoes, tomatoes) and wherever host plants are found. |
 | Sphinx chersis WO, the Northern Ash Sphinx or Great Ash SphinxThe upperside of the forewing is soft dark gray to blue-gray with a series of black dashes, one of which reaches the wing tip. Questionable! |
 | Sphinx perelegans USGS, the Elegant SphinxSphinx 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 vashti WO, the Snowberry Sphinx,
Snowberry Sphinx adults fly as a single brood in montane woodlands and along prairie
streamcourses from April to August. |
Smerinthini Tribe:
 | Pachysphinx modesta USGS, the Modest Sphinx or Poplar Sphinx,This large poplar/willow feeder is possibly in Wasco. They are a heavy bodied species. |
 | Pachysphinx occidentalis USGS, the Big Poplar SphinxThis one is quite similar to Pachysphinx modesta, with modesta being smaller and darker. There may be naturally occuring hybrids in Wasco. |
 | Paonias excaecata USGS, 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. |
 | Paonias myops WO, the Small-eyed SphinxThis 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. |
 | Smerinthus cerisyi WO, 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. |
Macroglossini Tribe
 | Hyles gallii WO, the Bedstraw Hawk Moth or Gallium SphinxLarvae feed on Epilobium angustifolium and Galium. I expect flight is late May-July with a possible fall flight as well. |
 | Hyles lineata WO, the White-lined SphinxAdults 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. |
 | Proserpinus flavofasciata WO, the Yellow-banded Day Sphinx,Proserpinus flavofasciata adults fly from April-June in meadows in coniferous forests. Adults fly during the afternoon, nectaring from lilac, dandelion, cherry, etc. |