Macrosiphum lilii

Macrosiphum lilii, commonly known as the purple-spotted lily aphid, is a species of insect in the family Aphididae.^[1]

Congregating on the underside of lily leaves

Purple-spotted Lily Aphid
Resting alone atop a lily leaf, Queens, NY
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Suborder:	Sternorrhyncha
Family:	Aphididae
Genus:	Macrosiphum
Species:	M. lilii
Binomial name
Macrosiphum lilii Monell, 1880

M. lilii consumes the phloem, or nutrient-rich sap, of plants. Nymphs and adults alike use their mouthparts to poke into the outer plant tissue, often the leaves of a plant, to feed on the phloem within.