Bug FAQBeeblossom Aphid
Macrosiphum gaurae · Order: Hemiptera · Family: Aphididae
Source: Wikipedia
The beeblossom aphid is native to North America, ranging coast-to-coast but is rare in parts of BC to Oregon. It occurs in two colour forms to a bright rose-pink form and a greener form to the pink form being unique among North American aphids.
Source: Wikipedia
How to recognize it
Its siphunculi are black, similar to those of Macrosiphum rosae. There is a deep indentation near the rear end that helps separate it from Macrosiphum rosae.
Source: Wikipedia
What it eats
Its primary host plants are evening primrose and beeblossom.
Source: Wikipedia
Where it comes from
It is endemic to the North American continent.
Source: Wikipedia
Lookalikes
It can be confused with Macrosiphum rosae, but the black siphunculi and the rear-end indentation distinguish it.
Source: Wikipedia
Where it is found in the US
Recorded in 19 of 51 states and DC. Most records: Texas, California, Nebraska, North Carolina, Utah, Florida, Tennessee, Washington.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What plants does the beeblossom aphid feed on?
It mainly feeds on evening primrose and beeblossom plants.
Source: Wikipedia
How can I tell the pink form of beeblossom aphid from other aphids?
The pink form turns a brilliant rose pink, a colour unique among North American aphids, and it has a deep indentation near the rear end.
Source: Wikipedia
Where is the beeblossom aphid found in North America?
It is found coast-to-coast across North America, though it is rare in the region from British Columbia to Oregon.
Source: Wikipedia
Same family (Aphididae)
Melon AphidAphis gossypiiDamages trees, gardens or crops
Oleander AphidAphis neriiDamages trees, gardens or crops
Witch-hazel Cone Gall AphidHormaphis hamamelidis
Beech Blight AphidGrylloprociphilus imbricatorDamages trees, gardens or crops
Rice Root AphidTetraneura nigriabdominalis
Rose AphidMacrosiphum rosaeDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Macrosiphum_gaurae
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.