Protambulyx astygonus
Updated as per AN ANNOTATED CHECKLIST OF THE SPHINGIDAE OF BOLIVIA, October 2007
Updated as per personal communication with Sergio D. Ríos Díaz in CATÁLOGO DE LOS SPHINGIDAE (INSECTA: LEPIDOPTERA) DEPOSITADOS EN EL MUSEO NACIONAL DE HISTORIA NATURAL DEL PARAGUAY; sent to me in July 2014 by Sergio D. Ríos Díaz.
Updated as per personal communication with Ezequiel Bustos (Shilap revta. lepid. 43 (172) diciembre, 2015, 615-631 eISSN 2340-4078 ISSN 0300-5267), January 4, 2016
Updated as per personal communication with Diogo Luiz (Nova Iguacu, Rio de Janeiro, Brazil), December 5, 2016

Protambulyx astygonus
(Boisduval, [1875]) Ambulyx

Protambulyx astygonus female, Paraguay, courtesy of Jean Haxaire

Protambulyx astygonus, Nova Iguacu, Rio de Janeiro, Brazil,
courtesy of Diogo Luiz, id by Jean Haxaire

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

TAXONOMY:

Family: Sphingidae, Latreille, 1802
Subfamily: Sphinginae, Latreille, 1802
Tribe: Smerinthini, Grote & Robinson, 1865
Genus: Protambulyx Rothschild & Jordan, 1903 ...........
Species: astygonus (Boisduval, [1875])

DISTRIBUTION:

Protambulyx astygonus (Wing span: approximately 100mm) flies in
Bolivia: Santa Cruz;
Paraguay: Paraguari; Amambay; Canindeyu; and
Brazil: Minas Gerais; Rio de Janeiro: Nova Iguacu; and
Argentina: Misiones (EB).

"P. astygonus is very similar in external appearance to P. goeldii. However, the two species can easily be distinguished by the presence of a prominent dark spot at the apex of the forewing discal cell in P. goeldii that is missing in P. astygonus."

Protambulyx astygonus, Brasil, Poté, Minas Gerais, November 11, 2004,
courtesy of Frederik Goussey.

FLIGHT TIMES:

Protambulyx astygonus adults fly in October in Bolivia. In Paraguay there are records for June so there are probably at least two broods. The Minas Gerais image is from November while that from Rio de Janeiro is from early December..

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:

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