DISTRIBUTION:

Cerodirphia siriae (wingspan: males: 60mm; females: 79mm // Mfwl: ; Ffwl: ) flies in
Peru: Amazonas; San Martin; Lambayeque; Huanuco; Junin; Pasco; Puno; Ucayali; Madre de Dios; and
Bolivia: Beni; La Paz; and
Venezuela: Barinas; and
Ecuador: Orellana; Sucumbios; Napo; Pastaza; Morona Santiago; and
Colombia: Putamayo; Caqueta.

I believe this species, Cerodirphia siriae, replaces the browner Cerodirphia speciosa from further north in the Guayanas, according to Brechlin & Meister, 2011.

However, I note the following: males and females of Cerodirphia siriae seem to have dark brownish antennae while the antennae of Cerodirphia speciosa appear to be quite white (described as yellow by Lemaire). The following image from Misahualli, Napo, Ecuador, fits the range for siriae, but it has the antennae of speciosa?????

Cerodirphia speciosa/siriae ??, Jungle Lodge El Jardin Aleman, Misahualli, Napo, Ecuador,
October 2015, 400m. courtesy of Allen Liu, tentative id by Bill Oehlke.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Specimens have been recorded on the wing in just about every month at elevations of 320-2000m.

Cerodirphia siriae female, 79mm, Huanuco, Peru,
on my home computer only

ECLOSION, SCENTING AND MATING:

Males use highly developed antennae to locate females at night by tracking their airbourne pheromone plumes.

EGGS, LARVAE, COCOONS AND PUPAE:

Larve feed gregariously and have urticating spines.

The species name, siriae, is honourific for Siri Van Schayck.

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.

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