MADORYX PSEUDOTHYREUS

Madoryx pseudothyreus, Marco Island, Collier County, Florida,
March 7, 2016, courtesy of David Wright.

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: Macroglossinae, Harris, 1839
Tribe: Dilophonotini, Burmeister, 1878
Genus: Madoryx Boisduval, [1875] ...........
Species: pseudothyreus Grote, 1865

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DISTRIBUTION:

The False-windowed Sphinx, Madoryx pseudothyreus (Wing span: 2 5/8 - 2 3/4 inches (6.6 - 7 cm)), flies in tropical climates: The West Indies and central Florida. Cuba is the specimen type locality.

The wing margins are scalloped. The upperside of the forewing is brown with dark brown and tan markings. The forewing has a V-shaped white spot near the center of the costa.

Madoryx pseudothyreus courtesy of Paul Opler.

FLIGHT TIMES:

There are several flights throughout the year in the tropics.

ECLOSION:

Moths emerge from pupae in thin-walled cocoons under leaf litter.

SCENTING AND MATING:

Females call in the males with a pheromone released from a gland at the tip of the abdomen. Adults nectar at flowers, including petunia and Asystasia gangetica at dusk.

EGGS, LARVAE, PUPAE:

Females probably lay eggs on evening primrose (Onagraceae). In Florida larvae have been found on Black Mangrove (Avicennia germinans).

Larvae pupate in cocoons spun amongst leaf litter.

Madoryx pseudothyreus fifth instar, on my home computer only.

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