Eacles imperialis hallwachsae
Updated as per Entomo Satsphingia Jahrgang 4 Heft 2 29.06.2011; April 24, 2013

Eacles imperialis hallwachsae
ee-UH-kleesMim-PEER-ee-al-isMHALL-wax-aye
Brechlin & Meister, 2011

Eacles imperialis hallwachsae male, Barro Colorado Island, Panama,
August 5, 2010 id by Bill Oehlke.

This site has been created by Bill Oehlke.
Comments, suggestions and/or additional information are welcomed by Bill.

TAXONOMY:

Superfamily: Bombycoidea, Latreille, 1802
Family: Saturniidae, Boisduval, [1837] 1834
Subfamily: Ceratocampinae, Harris, 1841
Genus: Eacles, Hübner, [1819]
Species: imperialis hallwachsae, Brechlin & Meister, 2011

DISTRIBUTION:

Eacles imperialis hallwachsae (wingspan: males: 99mm; females: mm // forewing length: males: 52-58mm; females: ) flies in
Costa Rica: Puntarenas; Cartago; San Jose; and
Panama: Barro Colorado Island.

Thus far it is reported at elevations near 1050m.

This species is considerably smaller than Eacles imperialis decoris which flies in northern Costa Rica: Alajuela; Heredia; Guanacaste; and Nicaragua. Eacles imperialis hallwachsae also has more falcate forewings when compared to decoris. Otherwise the two species are almost identical in appearance.

Eacles imperialis decoris male, 4 km east of Golfito, Puntarenas, Costa Rica,
0-500m, May 4, 2008, courtesy/copyright Leroy Simon.

Eacles imperialis hallwachsae HT male,
La Gamba Biological Station, Puntarenas, Costa Rica,
99mm, May 21, 1999, on my home computer only.

The image of the male from Puntarenas has forewings whose outer margin is not as hollowed out as in the moth from Barro Colorado Island, Panama.

FLIGHT TIMES AND PREFERRED FOOD PLANTS:

Eacles imperialis hallwachsae moths are on the wing in May and in July, suggesting at least two broods annually. There are probably additional flight months.

Larvae might accept Quercus and Rhus laurina and Salix.

ECLOSION, SCENTING AND MATING:

Females, which are much plainer than males, probably mate around 10:00 P.M., and the pair remains coupled until the following evening. Upon separation, the females begin their ovipositing flights.

EGGS, LARVAE AND PUPAE:

Lemon-yellow, translucent eggs are deposited singly or in small clusters of up to six. The larvae become visible through the egg shells a day or so before emerging.

Larvae are solitary in their feeding habits and have extensive thoracic scoli. At maturity, larvae descend trees to pupate in underground chambers. Pupae should be stored under cool, but above freezing temperatures, and sprinkling with water a few times a week in spring encourages subsequent eclosions.

Larval Food Plants


It is hoped that this alphabetical listing followed by the common name of the anticipated foodplant will prove useful. The list is not exhaustive. Experimenting with closely related foodplants is worthwhile.

Liquidambar styraciflua HK .......
Quercus
Rhus laurina......
Salix

Sweetgum
Oak
Laurel sumac
Willow

Return to Eacles Index

Return to Main Saturniidae Index

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.

Some of the early describers/namers chose genus and species names indicating some character of the insect, but more often, they simply chose names from Greek or Roman mythology or history.

Those species names which end in "ensis" indicate a specimen locale, and those which end in "i", pronounced "eye", honour a contempory friend/collector/etc.

I do not know the source of the genus name "Eacles", but it may be a combination of "Ea", the Greek word for gods and goddesses and the Greek suffix "cles", meaning 'glory of'.

The species name "ormondei" is honourific for Ormonde.

The species/subspecies names, "imperialis hallwachsae" are indicative of a close relationship with Eacles imperialis, and are honourific for Dr. Winnie Hallwachs.