Protambulyx eurycles
Updated as per AN ANNOTATED CHECKLIST OF THE SPHINGIDAE OF BOLIVIA, October 2007
Updated as per Fauna Entomologica De Nicarauga, November 2007
Updated as per The Known Sphingidae of Costa Rica, November 2007
Updated as per personal communication with Johan van't Bosch (Mato Grosso, Brazil, September 10), March 2008
Updated as per Heteroceres de Guyane Francaise (Kaw); February 11, 2011
Updated as per personal communication with Andres Urbas (near Kaw Mountains, French Guiana, March 31, April 25, 2011); April 19, 2011
Updated as per personal communication with Jose Ramon Alvarez Corral; May 27, 2012; ongoing
Updated as per "A Hawk Moths fauna of southern Maranhão state, Brazil, ... "; NEVA: Jahrgang 34 Heft 3 November 2013; via Jean Haxaire; April 5, 2014

Protambulyx eurycles
(Herrich-Schaffer, [1855]) Ambulyx

Protambulyx eurycles, near Kaw Mountains, French Guiana,
April 25, 2011, courtesy of Andres Urbas.

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: eurycles Herrich-Schaffer, 1855

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Protambulyx eurycles, Cristalino Jungle Lodge, Mato Grosso, Brazil,
September 10, 2007, 71m, courtesy/copyright of Johan van't Bosch.

DISTRIBUTION:

Protambulyx eurycles flies in
Suriname;
Venezuela: (Barinas, Merida, Aragua, Amazonas, Bolivar, (JRAC));
Guyana;
French Guiana: Kaw;
Colombia:
Ecuador;
Peru: Amazonas, probably throughout eastern Peru;
Bolivia: La Paz (400m), Santa Cruz (2020m);
Brazil: Mato Grosso (JVB); southern Maranhao (JH).

Manuel Balcazar-Lara reports it from Mexico, and it is also reliably reported from
Nicaragua: Zelaya, Rio San Juan; and
Costa Rica: Guanacaste, Puntarenas, Lemon, Alajuela, Heredia, San Jose, Carthage.

Protambulyx eurycles, Ecuador, courtesy of Charles J. DeRoller.

Note the markedly broader forewing submarginal band between veins M1 and M2. In Protambulyx euryalus the band is not nearly as broad.

Protambulyx eurycles courtesy of Rafael Cury, via Milena Nascimento.

Milena Nascimento reports the above specimen collected on June 30, 2004, in Parque Nacional da Restinga de Jurubatiba, Carapebus, RJ, Brazil.

FLIGHT TIMES:

Protambulyx eurycles adults probably fly continuously in multiple broods. Specimens have been taken in March and August and October in Bolivia. Johan van't Bosch reports a September flight in Mato Grosso, Brazil. Andres Urbas reports a March 31, 2011, flight near the Kaw Mountains, French Guiana.

Protambulyx eurycles, near Kaw Mountains, French Guiana,
March 31, 2011, courtesy of Andres Urbas.

Protambulyx eurycles, near Kaw Mountains, French Guiana,
March 31, 2011, courtesy of Andres Urbas.

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:

Larvae probably feed on Anacardiaceae, especially Spondias dulcis, Spondias mombin, Astronium graveolens, Erythroxylon and Comocladia, all in the cashew family, and on Simarouba glauca and Simarouba amara of the Simaroubaceae family.

Protambulyx eurycles courtesy of Rafael Cury, via Milena Nascimento.

Milena Nascimento reports the above larva collected on June 30, 2004, by Rafael Cury in Parque Nacional da Restinga de Jurubatiba, Carapebus, RJ, Brazil.

Moths may eclose within fourteen days of pupation.

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Protambulyx eurycles courtesy of Steve Graser.
Yasuni, Ecuador, September 5, 2002, 8:49 PM

Protambulyx eurycles male, Upper Maranon, Amazonas, Peru,
on my home computer only.