When i was a
child, during rainy season we were amazed by the appearance of clusters of
crimson–coloured ‘Saadhaba Bohus’
walking leisurely on wet grass-patches. There were two types of them, one tiny
and the other, relatively larger. We were fascinated by the splendor of their
velvet-like colourfull coats. The bigger ones were more attractive. Sometimes,
some of my friends used to collect these insects and to put them
in transparent glass bottles. They made a splendid sight but it was a cruel
deed. Even now, when i happen to visit my village during the rainy season, i
always look for these wonders of nature. They are called‘Saadhaba Bohus’ because of their bright crimson colour. In ancient
times, women in Saadhaba (seafaring traders) families of Odisha used
to wear costly bright red coloured sarees indicating their wealthy status. The ‘saadhaba bohus’ (literally meaning
daughters-in-law of ‘saadhabas’) look
like these ladies in the splendor of their bright red drapes.
Here they are:
Later, i found out that these insects are called cochineals, the crimson-dye-producing insects of the Dactylopiae family. These scarlet-colored insects are used in dyes for food and drinks.
These little
insects are so red under all that fluff because of the presence of Carminic acid
(their red dye) which repels ants. Their pigment evolved as a chemical weapon
against predation. Cochneal insects are soft-bodied flat, oval shaped scale
insects. The females are wingless and are about 5 mm long. They cluster on
cactus pads. They penetrate the cactus with their beak-like mouthparts and feed
its juice. After mating, the fertilized female increases in size and gives
birth to tiny ‘nymps’. Adult males have
wings and are much smaller.
Female (left) and
male (right) cochineals
Male nymphs feed
on the cactus till they reach sexual maturity. At this time, they can no longer
feed at all and live only long enough to fertisise the eggs. Also, they are
typically outnumbered by females. They are therefore seldom observed.
A Cluster of Female
Cochineals
However, are these
Saadhaba Bohus? Why is the colour
different?
Making red dye from carcasses of cochineals
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