jumping plant lice
...that jumping plant lice and aphids are considered to be the "primitive" group within the Hemiptera order of true bugs?
...that <b id="mwpQ"><a class="mw-redirect" href="./Jumping_plant_lice" id="mwpg" rel="mw:WikiLink" title="Jumping plant lice">jumping plant lice</a></b> and <a class="mw-redirect" href="./Aphids" id="mwpw" rel="mw:WikiLink" title="Aphids">aphids</a> are considered to be the "primitive" group within the <a href="./Hemiptera" id="mwqA" rel="mw:WikiLink" title="Hemiptera">Hemiptera</a> <a href="./Order_(biology)" id="mwqQ" rel="mw:WikiLink" title="Order (biology)">order</a> of true bugs?