Carbon County, Wyoming
Sphingidae Larvae

Hyles gallii, Rawlins, Carbon County, Wyoming,
September, 2011, courtesy of C. G. Morton.

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. I do not have confirmed reports of all of these species in Carbon County, but I (WO) expect they are present.

This page is inspired by and dedicated to C. G. Morton, wildlife biologist in Rawlins, Carbon County, Wyoming, who sends the image of a Hyles gallii larva at top of this page.

C. G. writes, "Hello Bill,
"I am a wildlife biologist in Rawlins, Wy, and I was recently doing some stream monitoring with a fish biologist in the office. We noticed massive amounts of a distinct caterpiller/larva. Their were two distinct kinds: those with yellow spots and those with red spots; everything else seemed to be identical, to our eyes, between the two. The caterpiller was also located on only one species of plant, which wasn't even the dominant plant in the stream section surveyed. The species that all the caterpillers were found on was northern willow herb or Epilobium glandulosum. I was able to positively identify the moth species as Hyles gallii as a result of your web site, so I wanted to provide feed back to you to say thanks and also give another confirmed location in Wyoming (Carbon county). I am attaching some pictures of the larva so that you can also confirm my identification. Feel free to use any of the pictures. Again thank you for you web site it is very helpful and informative."

For care of "found larvae/caterpillars" visit Manduca sexta larva, central Texas, August 21, 2008, Trina Woodall.

Twenty-one Sphingidae species are listed on the Bamona website for Wyoming. Not all of the species are reported by BAMONA or anticipated in Carbon County. Six species are reported on BAMONA as of September 6, 2011.

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

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

A BAMONA indicates the moth is reported on the BAMONA website and/or in Moths of Western North America, #2. Distribution of Sphingidae of Western North America, revised, an excellent little booklet available through Paul Opler.

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.

Please also forward your sightings to BAMONA, an excellent online resource.

Sphinginae subfamily Sphingini Tribe: Ceratomia undulosa WO, the Waved Sphinx Note the pinkish-orange tail, spiracles outlined in red and the cream stripes on the head. The dramatic color change from the dorsal yellow-green to the lateral light greyish-blue is not always as intense as in this image. Sphinx drupiferarum WO, the Wild Cherry Sphinx Larvae hide in the day and feed primarily on cherry, plum, and apple at night. Larvae have been found on Amelanchier nantuckensis in Massachusetts and have been reared to pupation in Michigan on Prunus serotina. Note purple oblique lines. Sphinx gordius BAMONA, the Apple Sphinx Larval hosts are apple (Malus), sweetfern (Myrica), Carolina rose (Rosa carolina), blueberry and huckleberry (Vaccinium), white spruce (Picea glauca), American larch (Larix laricina), and alder (Alnus). Sphinx luscitiosa WO, the Canadian Sphinx or Clemen's Sphinx This one is reported from Richmond and from northeastern New Jersey into southern Canada. Sphinx vashti USGS, the Snowberry Sphinx Larvae feed on the common snowberry (Symphoricarpos albus) and on coralberry (S. orbiculatus). Note the two golden lines of slightly raised bumps, one just behind the head, the other on the thorax. Smerinthini Tribe: Pachysphinx modesta BAMONA, the Modest Sphinx or Poplar Sphinx It is fond of poplars and willows. Pachysphinx occidentalis WO, the Big Poplar Sphinx Larvae feed on cottonwood and poplar (Populus) and willow (Salix). Larvae are very chunky with little to distinguish them from Pachysphinx modesta. Paonias excaecata WO, the Blinded Sphinx Larvae accept willows, birches, and cherries. I have also found them in the wild on oak in eastern Canada. Paonias myops WO, 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. There are varying degrees in the amount of red markings along the sides. Smerinthus cerisyi BAMONA, Cerisy's Sphinx; Cerisyi larvae are pale green, with granular skin, pale lateral diagonal lines, faint red spiracular circles, and very pale longitudinal lines running from head to more pronounced anal diagonal line. Larvae have green heads bounded dorsally with pale yellow inverted "V". Smerinthus jamaicensis WO, the Twin-spotted Sphinx: Larvae feed upon many forest trees including birches and cherries, but are expecially fond of poplars and willows. Red markings on sides vary greatly from specimen to specimen. Macroglossinae subfamily Dilophonotini Tribe Hemaris diffinis BAMONA, Snowberry Clearwing or Bumblebee Moth: Larval host plants include Snowberry (Symphoricarpos), honeysuckle (Lonicera), Coralberry, viburnums, Blue Dogbane (Apocynum), dwarf bush honeysuckle (Diervilla lonicera). Horn: black with yellow base. Hemaris thysbe WO, the Hummingbird Clearwing There is also an orangey-pink prepupal form. The lateral line runs from S1 to the blue horn. Hemaris thysbe larvae feed on viburnum and related plants. Hemaris thetis BAMONA, 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. Philampelini Tribe: Eumorpha achemon WO, the Achemon Sphinx 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. Macroglossini Tribe Hyles gallii CGMWO, the Bedstraw Hawk Moth or Gallium Sphinx Larvae come in black and in brown forms and often feed on Epilobium (fireweed). Hyles gallii, Rawlins, September 2011, C. G. Morton Hyles lineata WO, 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. Proserpinus flavofasciata WO, Yellow-banded Day Sphinx, Larvae feed on willow weed (Epilobium) and possibly thimbleberry (Rubus parviflorus).

Use your browser "Back" button to return to the previous page.

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.

Enjoy some of nature's wonderments: Saturniidae cocoons. Cocoons of these giant silkmoths are for sale in fall and winter. Large, beautiful moths emerge in the spring and summer.

Show appreciation for this site by clicking on flashing butterfly to the left. The link will take you to a page with links to many insect sites.