The scarlet kingsnake (''Lampropeltis elapsoides'') is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

kingsnake Kingsnakes are Colubridae, colubrid New World members of the genus ''Lampropeltis'', which includes 26 species. Among these, about 45 subspecies are recognized. They are nonvenomous and ophiophagy, ophiophagous in diet. Description Kingsnakes ...

found in the southeastern and eastern portions of the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. Like all kingsnakes, they are nonvenomous. They are found in pine flatwoods, hydric hammocks, pine savannas, mesic pine-oak forests, prairies, cultivated fields, and a variety of suburban habitats; not unusually, people find scarlet kingsnakes in their swimming pools, especially during the spring. Until recently, and for much of the 20th century, scarlet kingsnakes were considered a subspecies of the milk snake; however, Pyron and Bubrink demonstrated the phylogenetic distinction of this species and its closer relationship to the mountain kingsnakes of the southwestern United States. These largely

fossorial A fossorial animal () is one that is adapted to digging and which lives primarily (but not solely) underground. Examples of fossorial vertebrates are Mole (animal), moles, badgers, naked mole-rats, meerkats, armadillos, wombats, and mole salamand ...

snakes are the smallest of all the species within the genus ''Lampropeltis'', usually ranging from at maturity. The maximum recorded length is in Jonesboro, AR . Hatchlings range in size from .

Taxonomy

The generic name, '' Lampropeltis'', is derived from the

Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...

''lamprós'' (λαμπρος) meaning "shiny" and ''peltas'' (πελτας) meaning "shield", after the sheen of their scales. Its specific name, ''elapsoides'', is a Latinization of the

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

word ''éllops'' (ελλοπς) which refers to coral and was used to describe the 19th century

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

, ''Elaps'' (the type

of the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Elapidae Elapidae (, commonly known as elapids , from , variant of "sea-fish") is a family of snakes characterized by their permanently erect fangs at the front of the mouth. Most elapids are venomous, with the exception of the genus '' Emydocephalus ...

), which included the eastern coral snake ''(

Micrurus fulvius ''Micrurus fulvius'', Common name, commonly known as the eastern coral snake,John L. Behler, Behler John L.; Frederic Wayne King, King, F. Wayne (1979). ''The Audubon Society Field Guide to North American Reptiles and Amphibians''. New York: Alf ...

)'', a

venomous Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a sti ...

which the scarlet kingsnake resembles and with which the scarlet kingsnake is partly

sympatric In biology, two closely related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter each other. An initially interbreeding population that splits into two or more distinct spe ...

. The range of scarlet kingsnakes extends considerably further north and northeast than the eastern coral snake. The scarlet kingsnake was once believed to have

intergrade In zoology, intergradation is the way in which two distinct subspecies are connected via areas where populations are found that have the characteristics of both. There are two types of intergradation: primary and secondary intergradation. Primary ...

d with the eastern milk snake, which produced a variation once named as a subspecies called the Coastal Plains milk snake (''L. t. temporalis''), but this is no longer recognized as a legitimate

taxon In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...

Description

Scarlet kingsnakes have a tricolored pattern of black, red, white, and various shades of yellow bands that appear to

mimic In evolutionary biology, mimicry is an evolved resemblance between an organism and another object, often an organism of another species. Mimicry may evolve between different species, or between individuals of the same species. In the simples ...

the

venom Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a sti ...

ous

coral snake Coral snakes are a large group of elapid snakes that can be divided into two distinct groups, the Old World coral snakes and New World coral snakes. There are 27 species of Old World coral snakes, in three genera ('' Calliophis'', '' Hemibungar ...

in a form of

Batesian mimicry Batesian mimicry is a form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both. It is named after the English naturalist Henry Walter Bates, who worked on butt ...

. This method relies on generalization by predators that do not recognize that the mimicry of a Coral snake that the Scarlet King Snake's pattern displays is imperfect.A method to help us differentiate between venomous and non-venomous tricolor snakes in

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

is found in an enormous variety of popular phrases, which are usually some variation of "Red touches black, friend of jack, red touches yellow, kill a fellow", "red on yellow, kill a fellow; red on black, venom lack", or "if red touches yellow, you're a dead fellow; if red touches black, you're all right, Jack". For tri-colored snakes found east of the Mississippi River, all of these phrases can be replaced with the simple phrase, "Red face, I'm safe", in reference to the red snout of scarlet kingsnakes as opposed to the prominent black snout of the eastern coral snake (''

''). Scarlet kingsnakes are born with white, black, and red banding. As they mature, they develop varying shades of yellow within geographic areas where this is expressed. In addition, the yellowing is not uniform, but rather this pigmentation proceeds from lighter to darker from the lowermost scales upward to the dorsum, or "back", presenting a multiple yellowish band. Early expression of yellowing appears as early as 3 months and continues through the first 3 years. As adults age, a gradual darkening of the yellowish banding occurs. The yellow pigmentation varies from lemon, to school-bus yellow, to tangerine, to apricot. Scarlet kingsnakes are secretive,

nocturnal Nocturnality is a ethology, behavior in some non-human animals characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatur ...

snakes, so are infrequently seen by people. They are excellent climbers. They can be found underneath the loose bark on rotting pines (which is a favorite place for them to hide during spring or during heavy rains), under the bark on dying or decaying pines and their stumps, and decaying wood, where they hunt for their favorite prey, small

snakes Snakes are elongated Limbless vertebrate, limbless reptiles of the suborder Serpentes (). Cladistically Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales much like other members of ...

and

lizards Lizard is the common name used for all squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The ...

, especially

skink Skinks are a type of lizard belonging to the family (biology), family Scincidae, a family in the Taxonomic rank, infraorder Scincomorpha. With more than 1,500 described species across 100 different taxonomic genera, the family Scincidae is one o ...

s. Hatchling scarlet kingsnakes show a strong predisposition for ground skinks (''Scincella lateralis''), often to the exclusion of other prey items. One study showed that elongate squamates made up about 97% of these snakes diets, potentially due to their small mouths. Out of those elongate squamates, the aforementioned skinks made up 74%, while colubroid snakes made up only 15%. All prey items ingested in this study were consumed headfirst, and on average prey was 19% of predator mass. It has also been noted that the diet of ''Lampropeltis elapsoides'' is unusually narrow compared to adults of most other species.

Reproduction

The scarlet kingsnake is polygynandrous, meaning both males and females will mate with multiple partners. They mate from late May to early June and females lay eggs in June and July. Females have multiple egg clutches that incubate for 40–65 days. ''Lampropeltis elapsoides'' is an

oviparous Oviparous animals are animals that reproduce by depositing fertilized zygotes outside the body (i.e., by laying or spawning) in metabolically independent incubation organs known as eggs, which nurture the embryo into moving offsprings kno ...

species of snake that lays eggs in clutches of 4-12, usually under rotting wood and between rocks and logs. These eggs are white and slender, with most adhering to one another. Eggs typically hatch within 2-2.5 months, though times may vary.

In other media

Film

Scarlet kingsnakes were used to simulate

s in the 2006 film '' Snakes on a Plane''. A scarlet kingsnake also appears briefly as an unidentified venomous snake in an early scene of 2001 film '' The Mummy Returns''.

Television

In Season 5 of ''

Peep Show A peep show, peepshow, or, a peep booth is a presentation of a live sex show or pornographic film which is viewed through a viewing slot. Several historical media provided voyeuristic entertainment through hidden erotic imagery. Before the devel ...

'' Super Hans rents a scarlet kingsnake as a prop for a house party. Despite Hans'

mnemonic A mnemonic device ( ), memory trick or memory device is any learning technique that aids information retention or retrieval in the human memory, often by associating the information with something that is easier to remember. It makes use of e ...

stating "Red next to black, jump the fuck back, red next to yellow, cuddly fellow", kingsnakes are not venomous.