Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


Species Hyalopterus pruni - Mealy Plum Aphid

Mealy Plum Aphid (Hyalopterus pruni) - Hyalopterus pruni Hyalopterus pruni Mealy Plum Aphids - Hyalopterus pruni Mealy Plum Aphids - Hyalopterus pruni mealy plum aphids - Hyalopterus pruni aphids on Prunus serotina - Hyalopterus pruni Mealy plum aphid - Hyalopterus pruni - female Mealy plum aphid - Hyalopterus pruni - female
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 Aphidinae
Tribe Aphidini
Subtribe Rhopalosiphina
Genus Hyalopterus
Species pruni (Mealy Plum Aphid)
The adult is pale bluish green and has a white, powdery coating that makes it look gray to light green.(1) Some individuals in the colony may be pink.
Found across the U.S.
Spring through Fall
Apricot, peach, plum, reed grasses and cattails.
Life Cycle
The aphids overwinter in the egg stage near the base of flower buds. They hatch when the buds bloom. The adults will remain wingless for 3-13 generations before winged adults appear during warmer weather in June/July. The winged adults will move to reed grasses or cattails, while the wingless adults will remain on the fruit tree. The winged adults return to the fruit trees in the fall to lay eggs which will overwinter. (2)
Non native, introduced from the Mediterranean region around 1879.