Reference:
Vilcinskas, A., Stoecker, K., Schmidtberg, H., Röhrich, C. R., & Vogel, H., 2013. Invasive harlequin ladybird carries biological weapons against native competitors. Science, 340(6134), 862-863.
URL:
https://www.researchgate.net/publication/236921409_Invasive_Harlequin_Ladybird_Carries_Biological_Weapons_Against_Native_Competitors