What is "euchaetes egle"

Harlequin \Har"le*quin\ (h[aum]r"l[-e]*k[i^]n or -kw[i^]n), n. [F. arlequin, formerly written also harlequin (cf. It, arlecchino), prob. fr. OF. hierlekin, hellequin, goblin, elf, which is prob. of German or Dutch origin; cf. D. hel hell. Cf. Hell, Kin.] A buffoon, dressed in party-colored clothes, who plays tricks, often without speaking, to divert the bystanders or an audience; a merry-andrew; originally, a droll rogue of Italian comedy.
--Percy Smith.

As dumb harlequin is exhibited in our theaters.
--Johnson.

Harlequin bat (Zo["o]l.), an Indian bat ( Scotophilus ornatus), curiously variegated with white spots.

Harlequin beetle (Zo["o]l.), a very large South American beetle ( Acrocinus longimanus) having very long legs and antenn[ae]. The elytra are curiously marked with red, black, and gray.

Harlequin cabbage bug. (Zo["o]l.) See Calicoback.

Harlequin caterpillar. (Zo["o]l.), the larva of an American bombycid moth ( Euch[ae]tes egle) which is covered with black, white, yellow, and orange tufts of hair.

Harlequin duck (Zo["o]l.), a North American duck ( Histrionicus histrionicus). The male is dark ash, curiously streaked with white.

Harlequin moth. (Zo["o]l.) See Magpie Moth.

Harlequin opal. See Opal.

Harlequin snake (Zo["o]l.), See harlequin snake in the vocabulary.

Euchaetes egle, the milkweed tussock caterpillar or milkweed tiger moth, is a moth in the family Arctiidae. It is a common mid- through late-summer feeder on milkweeds and dogbane. Like most species in this family, it has chemical defenses it acquires from its host plants, in this case, cardiac glycosides (Weller et al., 1999). These are retained in adults and deter bats, and presumably other predators, from feeding on them (Hristov and Conner 2005). Only very high cardiac glycoside concentrations deterred bats, however (Hristov and Conner 2005). Adults indicate their unpalatability with clicks from their tymbal organs (Simmons and Conner 1996).