Hedgehog Grain Aphid

Sipha maydis · Order: Hemiptera · Family: Aphididae

Also called: Aphid

Damages trees, gardens or crops. It damages millet crops.

Source: Wikipedia

Hedgehog Grain Aphid
Photo: iNaturalist user, CC0

The hedgehog grain aphid feeds on millets, making it a pest of those crops. It is recognized as a millet pest in household contexts as well.

Source: Wikipedia

Is it a pest in the house?

It is considered a pest of millets in homes and storage areas.

Source: Wikipedia

What it eats

It feeds on millet plants.

Source: Wikipedia

Where it is found in the US

Recorded in 5 of 51 states and DC. Most records: California, New Mexico, Colorado, Utah, Georgia.

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

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Source: GBIF

More photos

Hedgehog Grain Aphid photo 2
Photo: iNaturalist user, CC0
Hedgehog Grain Aphid photo 3
Photo: Darin J McGuire, CC BY
Hedgehog Grain Aphid photo 4
Photo: iNaturalist user, CC0
Hedgehog Grain Aphid photo 5
Photo: Ryan Donnelly, CC BY

Questions people ask

What crops does the hedgehog grain aphid damage?

It damages millet crops.

Source: Wikipedia

Same family (Aphididae)

Melon AphidMelon AphidAphis gossypiiDamages trees, gardens or cropsOleander AphidOleander AphidAphis neriiDamages trees, gardens or cropsWitch-hazel Cone Gall AphidWitch-hazel Cone Gall AphidHormaphis hamamelidisBeech Blight AphidBeech Blight AphidGrylloprociphilus imbricatorDamages trees, gardens or cropsRice Root AphidRice Root AphidTetraneura nigriabdominalisRose AphidRose AphidMacrosiphum rosaeDamages trees, gardens or crops

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Sipha_maydis

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.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.