Melolonthidian

Melolonthidian Mel`o*lon*thid"i*an (m[e^]l`[-o]*l[o^]n*th[i^]d"[i^]*an), n. [Gr. mhlolo`nqh the cockchafer.] (Zo["o]l.) A beetle of the genus {Melolontha}, and allied genera. See {May beetle}, under {May}. [1913 Webster]