Buff ermine

The buff ermine (Spilarctia luteum) is a moth of the family Erebidae. It is sometimes placed in the genus Spilosoma. The species was first described by Johann Siegfried Hufnagel in 1766. It is found throughout the temperate belt of the Palearctic region south to northern Turkey, Georgia, Kazakhstan, southern Siberia (excluding Buryatia), eastern Mongolia, Amur Region, China, Korea and Japan.

Buff ermine
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Erebidae
Subfamily:	Arctiinae
Genus:	Spilarctia
Species:	S. luteum
Binomial name
Spilarctia luteum (Hufnagel, 1766)
Synonyms
List Phalaena lubricipeda lutea Hufnagel, 1766 Phalaena Bombyx zatima Stoll, 1782 Bombyx radiatus Haworth, 1812 Spilosoma lubricipeda hartigi Dannehl, 1928 Spilosoma lubricipedum reisseri Koutsaftikis, 1973 Diacrisia lutea japonica Rothschild, 1910 Spilarctia obliqua bergmani Bryk, 1942 Spilarctia obliqua ursulina Bryk, 1942 Diacrisia lutea rhododaktyla Bryk, 1948 [1949] Spilosoma rhodosoma Turati, 1907 Spilosoma lutea Spilosoma luteum

The wings of this species are buffish yellow (the males tend to be more yellow than the females) and are typically marked with a diagonal row of dark spots on the forewing and a few other scattered spots on both forewings and hindwings. The extent of black markings varies considerably, however, from almost spotless examples to largely black melanic forms. The wingspan is 34–42 mm. The species flies from May to July in the British Isles. This may vary in other parts of the range. It is attracted to light.

The larva is pale brown and very hairy. It is polyphagous, feeding on a wide variety of trees, shrubs and herbaceous plants (see list). This species overwinters as a pupa.

Recorded food plants

Some larval food plants include:^[1][2]

• Alnus – alder
• Mentha – mint
• Plantago – plantain
• Quercus – oak
• Rheum – rhubarb
• Ribes – currant
• Rubus – raspberry
• Rumex – dock/sorrel
• Senecio – ragwort
• Urtica – nettle
• Lonicera – honeysuckle
• Humulus – hops

Subspecies

• Spilarctia lutea lutea
• Spilarctia lutea adzharica Dubatolov, 2007 (Georgia)
• Spilarctia lutea japonica (Rothschild, 1910) (Middle Amur, Primorye, southern Sakhalin, southern Kuril Islands, eastern China, Korea, Japan)
• Spilarctia lutea rhodosoma (Turati, 1907) Sicily, the black of the upperside is increased by a larger number of the spots; but especially distinguished by the bright red abdomen.

Gallery

• 
  Buff ermine moth (Spilarctia luteum) caterpillar
• 
  Pupa
• 
  Pair of buff ermine moths