Source : Webster's Revised Unabridged Dictionary (1913)

Hymenopteral \Hy`me*nop"ter*al\, Hymenopterous
\Hy`me*nop"ter*ous\, a. (Zo["o]l.)
   Like, or characteristic of, the Hymenoptera; pertaining to
   the Hymenoptera.

Source : WordNet®

hymenopterous
     adj : of or relating to insects of the order Hymenoptera