I also put hemipteran . Dictionary .com gives
Also called true bug, hemipteran, hemipteron. a hemipterous insect.
I have both spellings in various dictionaries.I think they would allow alt spellings in this case or I would hope they would !
But.. ..you never know with the DTGK !
Aha ..have know delved further ..hemipteran is singular and hemipteron is plural ..so I am going tom find the whiteout as the clue states insectS. http://www.thefreedictionary.com/hemipteran
hemipteron - insects with sucking mouthparts and forewings thickened and leathery at the base....also from the above link