The Collaborative International Dictionary of English v.0.48:

Hemipteran \He*mip"ter*an\, n. (Zool.)
   One of the Hemiptera; an hemipter.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hemipteran
    n 1: insects with sucking mouthparts and forewings thickened and
         leathery at the base; usually show incomplete metamorphosis
         [syn: hemipterous insect, bug, hemipteran,
         hemipteron]