sugarbeet root aphid Order HEMIPTERA Family Aphididae Genus Pemphigus Species populivenae Author Fitch
poplar twig gall aphid Order HEMIPTERA Family Aphididae Genus Pemphigus Species populiramulorum Author Riley
poplar petiolegall aphid Order HEMIPTERA Family Aphididae Genus Pemphigus Species populitransversus Author Riley
lettuce root aphid Order HEMIPTERA Family Aphididae Genus Pemphigus Species bursarius Author (Linnaeus)
