The queen snake, Regina septemvittata, has a disjunct portion of its distribution in Arkansas. This rare, crayfish-eating species is best known from only a few isolated populations from several major streams that flow out of the Boston Mountains of the Ozark Plateau. A field study of this species was conducted during the summer of 1990, and only 4 specimens were documented. Gravid females were collected in July; sperm production was also noted in July. Parturition presumably takes place in August or early September. This species may qualify as threatened or endangered in Arkansas.
Trauth, Stanley E.
"Distribution, Scutellation, and Reproduction in the Queen Snake, Regina septemvittata (Serpentes: Colubridae), from Arkansas,"
Journal of the Arkansas Academy of Science: Vol. 45
, Article 32.
Available at: http://scholarworks.uark.edu/jaas/vol45/iss1/32