Eumorpha intermedia

Eumorpha intermedia
you-MORE-fuhMin-ter-MEE-dee-uh
(B. P. Clark, 1917) Pholus

Eumorpha intermedia*, Jekyll Island, Glynn County, Georgia,
October 4, 2010, courtesy of Rebecca Deatsman,
blog at http://rebeccainthewoods.wordpress.com/
id by Bill Oehlke, confirmed by James P. Tuttle.

This site has been created by Bill Oehlke at oehlkew@islandtelecom.com
Comments, suggestions and/or additional information are welcomed by Bill.

TAXONOMY:

Superfamily: Sphingoidea, Dyar, 1902
Family: Sphingidae, Latreille, 1802
Subfamily: Macroglossinae, Harris, 1839
Tribe: Philampelini, Burmeister
Genus: Eumorpha, Hubner, [1807]
Species: intermedia, (B. P. Clark, 1917)

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DISTRIBUTION:

The Intermediate Sphinx Moth, (Eumorpha intermedia), (Wing span: 3 9/16 - 3 7/8 inches (9 - 9.8 cm)), flies in lower austral and subtropical lowlands in North Carolina, Georgia, Florida, Mississippi, Louisiana, and South Texas.

Eumorpha intermedia*, Jekyll Island, Glynn County, Georgia,
October 4, 2010, courtesy of Rebecca Deatsman,
blog at http://rebeccainthewoods.wordpress.com/
id by Bill Oehlke, confirmed by James P. Tuttle.

Note scalloped subterminal line near forewing apex. In very similar Eumorpha pandorus the same line is only slightly wavy, definitely not scalloped.

Eumorpha intermedia male courtesy of Vernon A. Brou.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Eumorpha intermedia adults are on the wing from April-October.

Adults nectar at various flowers in the dark. Eumorpha intermedia larvae feed upon peppervine, Ampelopsis arborea. Possibly they will also accept grape (Vitis species), but so far no records of that host have been reported to my knowledge.

Eumorpha intermedia*, September 30, 2011, courtesy Rev. Redmond Farrier,
(tentative id & digital repair by Bill Oehlke, possibly wind assisted stray, usually more easterly in GA).

Vernon A. Brou has indicated that all those images marked by * are really Eumorpha pandorus. Vernon has provided the following original description of Eumorpha intermedia.

ECLOSION, SCENTING AND MATING:

Pupae wiggle to surface just prior to eclosion. Females call at night, and males fly into the wind to pick up and track the pheromone plume.

Eumorpha intermedia female courtesy of Vernon A. Brou.

EGGS, LARVAE AND PUPAE:

Larvae pupate in shallow underground chambers.

The white, oblique side panels are greatly reduced on all abdominal segments except six and seven. There are both green and red-brown forms.

Long white horn with black tip is not present for final instar.

Eumorpha intermedia third instar molting, Baton Rouge, East Baton Rouge Parish, Louisiana,
courtesy of James P. Tuttle.

Eumorpha intermedia fourth instar, Baton Rouge, East Baton Rouge Parish, Louisiana,
courtesy of James P. Tuttle.

Eumorpha intermedia fifth instar, Baton Rouge, East Baton Rouge Parish, Louisiana,
courtesy of James P. Tuttle.

Larvae like to remain well hidden deep within tangle of vines.

Larval Food Plants


Listed below are primary food plant(s) and alternate food plants. It is hoped that this alphabetical listing followed by the common name of the foodplant will prove useful. The list is not exhaustive. Experimenting with closely related foodplants is worthwhile.

Ampelopsis arborea .......

Peppervine

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