Dolbogene hartwegii courtesy of Bruce Walsh.

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TAXONOMY: Family: Sphingidae, Latreille, 1802 Subfamily: Sphinginae, Latreille, [1802] Tribe: Sphingini, Latreille, 1802 Genus: Dolbogene Rothschild and Jordan, 1903 ........... Species: hartwegii (Butler, 1875)

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DISTRIBUTION:

Hartweg's Sphinx Dolbogene hartwegii (Wing span: 2 1/8 - 2 3/8 inches (5.4 - 6.1 cm)], flies in Mexico, specimen type locality, and generally from Texas and southern Arizona (Santa Cruz County) south to southern Mexico and Guatemala (JM).

The upperside of the forewing is brown with dark brown and white markings with a light round spot near the end of the cell. The upperside of the hindwing has a dark spot at the lower outer margin, and the forewing has a small dark patch near the anal angle.

Dolbogene hartwegii courtesy of Robert J. Nuelle III.

This Arizona State record (above) for 2004 was listed in the Lep Society Season Summary. It was captured in Santa Cruz County, Arizona on the evening of August 7, 2004. Coincidentally it was the first capture of that evening. It came to a combination of Mercury Vapor and Blacklight Fluorescent lights on a hill top in an area with a tremendous amount of Hopbush (Dodonaea viscosa) and Ocotillo.

FLIGHT TIMES:

Dolbogene hartwegii adults fly in July (Evan Rand) August (RJNIII) and possibly/probably in other months.

Evan Rand reports that this species seem to be most likely seen near end of July with at least four specimens reported in July 2011.

Dolbogene hartwegii, California Gulch, Atascosa Mtns, Santa Cruz Co. AZ,
July 21, 2010, 3800ft, courtesy of Evan Rand.

ECLOSION:

Pupae probably wiggle to surface from subterranean chambers just prior to eclosion.

SCENTING AND MATING:

Females call in the males with a pheromone released from a gland at the tip of the abdomen.

EGGS, LARVAE, PUPAE:

Jean Haxaire confirms that larvae feed upon Tecoma stans in the Bignoniaceae family.

Dolbogene hartwegii on Tecoma stans, Sonora, Mexico,
4150 feet, courtesy of J. Palting, via Jean Haxaire.

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