J. E. SMITH, 1797
Anisota senatoria (female) courtesy of Leroy Simon.
This site has been created by
Bill Oehlke at email@example.com
Comments, suggestions and/or additional information are welcomed by Bill.
Superfamily: Bombycoidea, Latreille, 1802
Family Saturniidae Boisduval,  1834
Subfamily: Ceratocampinae, Harris 1841
Genus: Anisota, Hübner, 1820 ("1816")
Species: senatoria, J. E. Smith, 1797
copyright C. Odenkirk
Anisota senatoria, the Orange-tipped oakworm moth (wing span: 1 3/16 - 2 inches (3 - 5 cm)), flies in deciduous forests from southern Maine west across the Great Lakes region to central
Minnesota; south to central Georgia, central Alabama, central
Mississippi, Louisiana, and east Texas.
FLIGHT TIMES AND PREFERRED FOOD PLANTS:
There is one Anisota senatoria brood from June-July, and oakworm
larvae feed on various oaks (Quercus) and perhaps chinquapin (Castanea pumila).
ECLOSION, SCENTING AND MATING:
Anisota senatoria adult maless are day fliers. Mating takes
place from late morning to early afternoon.
Females can be twice as large as males. The upperside of the
female is yellow-orange to yellow-brown and the forewing has a white cell
spot and varying amounts of scattered black specks.
The upperside of the male
is reddish orange to brownish orange and the forewing is narrow with a small
white cell spot and a small whitish translucent patch.
EGGS, LARVAE, COCOONS, AND PUPAE:
In late afternoon or dusk, females
begin laying eggs in large clumps on the underside of oak leaves.
hatch in about two weeks and predominantly black larvae are gregarious when young.
Caterpillar populations can be large enough to cause severe defoliation of oaks. Trees can often survive a single year of
defoliation, but repeat performances greatly reduce growth and can cause tree mortality.
Ornamental oaks and city and suburban plantings are often sprayed to control this oakworm pest.
Photo to right by Ricardo Bessin
early fall the fully grown caterpillars move to the ground, burrow in three to
four inches, change to pupae, and spend the winter as pupae in their underground chambers.
Photo to right by Leroy Simon
Larval Food Plants
Listed below are primary food plant(s) and alternate food plants listed in Stephen E.
Stone's Foodplants of World Saturniidae. 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.
Swamp white oak
Dwarf chestnut oak
Northern red oak
Wild red raspberry
Please visit other websites maintained by
SATURNIIDAE OF PRINCE EDWARD ISLAND
Bill Oehlke firstname.lastname@example.org
Box 476, Peardon Road
Montague, Prince Edward Island
Canada C0A 1R0.
NORTH AMERICAN SATURNIIDAE
BUTTERFLIES OF PRINCE EDWARD ISLAND
Return to SPHINGIDAE OF PRINCE EDWARD ISLAND
Return to Ceratocampinae Index
Return to Caterpillar Identification Guide