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

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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 BugGuide 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.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


Genus Macrosiphum

Flower aphid scene 2 - Macrosiphum Aphid with black spot - Macrosiphum euphorbiae aphid infestation on lettuce - Macrosiphum euphorbiae Aphid - Macrosiphum rosae Aphid birth - Macrosiphum euphorbiae - female Red aphids - Macrosiphum Pink and green aphids on tulip - Macrosiphum euphorbiae Aphids on Tomato Plant - Macrosiphum euphorbiae
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 Macrosiphini
Genus Macrosiphum
Explanation of Names
Macrosiphum Passerini 1860
~60 spp. in 2 subgenera in our area(1), ca. 140 spp. in 3 subgenera (all but 8 spp. the nominate subgenus) worldwide(2)
Life Cycle
There are a number of generations of parthenogenetic females, most are wingless but when conditions become overcrowded winged aphids are produced that may migrate to other hosts. At the end of summer or in the fall males and females are produced, they mate and eggs are laid. Eggs overwinter.
1. Population which includes nymphs, and wingless and winged adults. 2. Parthenogenetic female giving birth. 3. Wingless adult and recently laid eggs. 4. Overwintering eggs.
Print References
Jensen, A.S. 2015. Two new species of Macrosiphum Passerini (Hemiptera: Aphididae) from Western North America. Proceedings of the Entomological Society of Washington, 117(4): 481-494.