Actias sinensis

Actias sinensis
AKT-ee-usMsye-NENS-ihs
WALKER, 1855

Actias sinensis (male) courtesy of Martin Jagelka

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

TAXONOMY:

Superfamily Bombycoidea, Latreille, 1802
Family: Saturniidae, Boisduval, [1837] 1834
Subfamily: Saturniinae, Boisduval, [1837] 1834
Tribe: Saturniini, Boisduval, [1837] 1834
Genus: Actias, Leach, 1815

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DISTRIBUTION:

Actias sinensis (wingspan: males: ?? females: approximately 100-108mm) flies in China: Guangdong (GNNNR); Guangxi (MJ); Laos and Vietnam: Dak Nong (KP). I suspect it also flies in Cambodia, but I have no official records or confirmation of that.

Based on a recent (March, 2009) publication by Ron Brechlin, where new species Actias parasinensis is described, those specimens previously reported from Laos and Vietnam as A. sinensis are probably A. parasinensis. A. parasinensis has slightly longer tails, a larger basal area on the forewing, and a fw pm line that is straight, not slightly outwardly curved around the cell. I believe all specimens on this page are true A. sinensis.

This species is listed as Actias chinensis in Moths of Guangdong Nanling National Nature Reserve.

Actias sinensis pair, courtesy/copyright Leroy Simon

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Actias sinensis larvae feed upon Formosa Gum (Liquidambar formosana).

Kelly Price reports specimens taken in Vietnam at elevations of 1400m in April.

GNNNR reports them on the wing in March-April and July-August in Nanling National Nature Reserve in Guangdong, China.

Actias sinensis female, Dak Nong, Vietnam,
100mm, 1400m, April 5, 2008, courtesy of Kelly Price.

Actias sinensis female, Dak Nong, Vietnam,
108mm, 1400m, April 5, 2008, courtesy of Kelly Price.


Actias sinensis female, courtesy of Leroy Simon.

ECLOSION, SCENTING AND MATING:

The female (above) is less colourful than the male (right) and extends a scent gland from the posterior tip of her abdomen to call in a night-flying mate.

Males use well developed antennae to track the pheromone.

Actias sinensis male, China, courtesy of Thibaud Decaens.

Pairing is sometimes brief. Mario Ioppolo reports a two hour coupling from 9:00 pm until 11:00pm. Bob Vuattoux also reports pairings can be brief.

Visit Actias sinensis male and female, China, courtesy of Horst Kach.

Visit Actias sinensis males and female, courtesy of Darrell Gulin.

EGGS, LARVAE, COCOONS AND PUPAE:

Eggs are deposited in small groups on host plant foliage. In the final instar larvae are green and chunky with a prominent anal, dorsal projection. Image courtesy of Leroy Simon.

Here is a set of images of instars 1-4 sent to me by Jan Hellert:



Actias sinensis fifth instar, courtesy of Dominique Ades.

Visit Actias sinensis adults, eggs, all instars and cocoon, China, courtesy of Leroy Simon.

Visit Actias sinensis male and female, Guangxi, China, 1800m, courtesy of Mike Jordan.

Larval Food Plants


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.

Liquidambar formosana.....

Formosa gum

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The pronunciation of scientific names is troublesome for many. The "suggestion" at the top of the page is merely a suggestion. It is based on commonly accepted English pronunciation of Greek names and/or some fairly well accepted "rules" for latinized scientific names.

The suggested pronunciations, on this page and on other pages, are primarily put forward to assist those who hear with internal ears as they read.

There are many collectors from different countries whose intonations and accents would be different.

The species name "sinensis" indicates location.

The genus name, Actias, probably comes from the Greek Actaeon, who is the hunter who had the misfortune of being torn to pieces by his own dogs after accidentally encountering the naked goddess Artemis. To punish him, Artemis splashed water on Actaeon and turned him into a stag. There is an Asian species named Actias artemis.

Actias sinensis (male) courtesy of Leroy Simon