grapta comma
Webster's Dictionary (GCIDE)
1.A character or point [,] marking the smallest divisions of a sentence, written or printed. [1913 Webster]
2.(Mus.) A small interval (the difference between a major and minor half step), seldom used except by tuners. [1913 Webster]
Comma bacillus (Physiol.), a variety of bacillus shaped like a comma, found in the intestines of patients suffering from cholera. It is considered by some as having a special relation to the disease; -- called also cholera bacillus.
Comma butterfly (Zool.), an American butterfly (Grapta comma), having a white comma-shaped marking on the under side of the wings. [1913 Webster]
Elm beetle (Zo["o]l.), one of several species of beetles (esp. Galeruca calmariensis), which feed on the leaves of the elm.
Elm borer (Zo["o]l.), one of several species of beetles of which the larv[ae] bore into the wood or under the bark of the elm (esp. Saperda tridentata).
Elm butterfly (Zo["o]l.), one of several species of butterflies, which, in the caterpillar state, feed on the leaves of the elm (esp. Vanessa antiopa and Grapta comma). See Comma butterfly, under Comma.
Elm moth (Zo["o]l.), one of numerous species of moths of which the larv[ae] destroy the leaves of the elm (esp. Eugonia subsignaria, called elm spanworm).
Elm sawfly (Zo["o]l.), a large sawfly (Cimbex Americana). The larva, which is white with a black dorsal stripe, feeds on the leaves of the elm. [1913 Webster]