a. and sb. Entom. [f. TRI- + L. ungula claw + -IN2.] a. adj. Having three claws on each leg, as the larvæ of the Meloidæ or blister-beetles in their first stage. b. sb. A triungulin larva.
1891. Cent. Dict., Triungulin, n.
1899. Cambr. Nat. Hist., VI. 270. The eggs of the blister-beetle giving rise to little larvæ of the kind called triungulin, because each leg is terminated by three tarsal spines or claws. Ibid., 301. The young triungulins.