Cactus Scattered Cochineal

Dactylopius opuntiae · Order: Hemiptera · Family: Dactylopiidae

Also called: False carmine cochineal, prickly pear cochineal

Damages trees, gardens or crops. It damages Opuntia (prickly pear) plants, reducing flowering, fruiting and sometimes killing the plants.

Source: Wikipedia

Cactus Scattered Cochineal
Photo: Greg Tasney, CC BY-SA

Adult females stay fixed on the plant and form large colonies covered in white wax, creating noticeable clusters. The insect is native to Mexico and nearby Central American countries and has been used to control invasive prickly pear in Africa.

Source: Wikipedia

How to recognize it

Females have an oval, purple-red body covered with white, cotton-like wax. They show truncate dorsal setae, clusters of quinquelocular pores with tubular ducts, and lack microducts and cellular anal rings with setae.

Source: Wikipedia

Size

Colonies can contain a few thousand individuals of mixed ages, all sessile on the plant.

Source: Wikipedia

Life cycle

Adult females remain fixed in place and build colonies of many individuals on the host plant.

Source: Wikipedia

Where it comes from

It originates from Mexico and neighboring Central American countries.

Source: Wikipedia

Where it is found in the US

Recorded in 5 of 51 states and DC. Most records: Texas, California, Arizona, Hawaii, Ohio.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How does Dactylopius opuntiae affect prickly pear plants?

It forms large wax-covered colonies that suppress flowering and fruiting and can kill the plants.

Source: Wikipedia

Same family (Dactylopiidae)

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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.