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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

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

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

Photos of 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

Previous events


Genus Macrosiphum

Aphididae - Macrosiphum rosae Aphids on rose bush in December - Macrosiphum Aphid ZH3Z1279 - Macrosiphum Macrosiphum gaurae Which Aphid is this? - Macrosiphum rosae Aphid sp.  - Macrosiphum euphorbiae Macrosiphum ptericolens - female Alate female aphid on Salix - Macrosiphum - 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 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.