DESCRIPTION:
L=1/16" (1.5mm). Body overall red to pinkish-red, but difficult
to see because they hide under white, waxy material they produce. Adult
females are wingless and legless, whereas males are winged and legged
and about half the size of the females.
NATURAL HISTORY: Cochineal bugs suck the juices out of cactuses (especially
prickly pear). They secrete
a waxy substance that is white in color that protects them from the
elements and from predators. When the eggs hatch, the nymphs are called
crawlers (they have 6 legs). They crawl to new areas on the cactus or
use their waxy filaments to "balloon" to another cactus. After
finding a suitable spot, the crawlers begin feeding on the cactus, molting,
and lose their legs. Later in the summer, males are produced and they
pupate and become winged and legged. This allows them to find mates
and mate.
Cochineal
Bugs also produce red-colored carmitic acid that wards off attacks from
predators (especially ants). People
collect cochineal bugs and dry them to make a red dye. Cochineal occurred
only in the New World (before being introduced elsewhere), and the early
inhabitants of the New World made good use of the dye in their textiles.
When the Europeans came to the New World and saw the beautiful textiles
dyed with cochineal, they began exporting the dye. Cochineal became
a major export product from the New World (especially Mexico) for many
years until the mid 1800s when synthetic dyes were developed. However,
because of the toxicity of some of the synthetic dyes, cochineal is
still used to dye some red-colored beverages, candies, medicines, and
lipstick (look for "cochineal" or "carmine" on the
labels).