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Species Monellia caryella - Blackmargined Pecan Aphid

aphid - Monellia caryella aphid - Monellia caryella Aphid on my pecan tree - Monellia caryella Blackmargined Aphid, Monellia caryella? - Monellia caryella - female Parasitized blackmargined pecan aphid? - Monellia caryella Blackmargined aphid giving live birth - Monellia caryella - female Black-Margined Pecan Aphid? - Monellia caryella Monellia caryella
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Sternorrhyncha (Plant-parasitic Hemipterans)
Superfamily Aphidoidea
Family Aphididae (Aphids)
Subfamily Calaphidinae
Tribe Panaphidini
Subtribe Panaphidina
Genus Monellia
Species caryella (Blackmargined Pecan Aphid)
Synonyms and other taxonomic changes
Monellia caryella (Fitch)
Orig. Comb: Aphis caryella Fitch 1855
2-3 mm (about 1/16 inch)
Found on pecan trees. A clear to yellow or pale green aphid. Adults hold their wings flat over the back of the body.
e. NA to NM - Map (1)
bottomlands, near pecans
Jun-Oct (BG data)
Carya spp., especially C. illinoinensis (pecan) and C. cordiformis (bitternut hickory)
Life Cycle
The species overwinters as eggs in bark crevices and under loose bark. Wingless nymphs hatch in the spring, move to leaves, and develop through four instars. Winged and wingless adults that develop produce nymphs without mating by parthenogenesis. Many (16 to 32) generations occur annually. When cooler weather arrives, eggs are produced for the winter.
distinguished from the related Yellow Pecan Aphid, Monelliopsis pecanis Bissel, which lacks the black front margin on the forewing, and holds the wings roof-like over the back of the body.
See Also
Monellia medina, recorded from Carya spp. in Maryland and Ohio, is very similar.