Under the ,"Who knew?" category, researchers reported back in 1993 that lady bugs have a dark secret. They are the first insect identified to carry a sexually transmitted disease (STD). The disease is transmitted to the ladybugs by a tiny mite that hangs out near the insects genitals and is transferred during sexual reproduction. The disease is caused by a bacterium carried by the mites, and causes the death of male offspring in the egg. Infected female ladybugs produce only female offspring; male eggs fail to hatch and newly emergent females eat the eggs containing potential brothers.
Spotless lady bugs spotted by Project Noah member Viz Tech:
Via Project Noah Fun Fact