Classification: | Kingdom: Animalia | Phylum: Arthropoda | Class: Insecta | Order: Coleoptera | Family: Coccinellidae | Genus: Illeis |

In April 2017, I came across a mass appearance of this beetle in a park that included its larvae and pupae.

This beetle was found on top of a larva. It might be a newly hatched beetle.

Another ladybird larva with black coloured legs seemed to prey on the ladybird larva of the Yellow Ladybird Beetle.

This beetle feeds on powdery mildew, a fungal disease of plants. The disease normally shows up as white powdery areas on the leaves. The tiny larva below was found on a leaf surface of a Rubber Tree (Hevea brasiliensis) that was infected by the powdery mildew.

Reference:

[1] Takeuchi M, Sasaki Y, Sato C, Iwakuma S, Isozaki A, Tamura M. Seasonal host utilization of mycophagous ladybird Illeis koebelei (Coccinellidae: Coleoptera). Japanese J Appl Entomol Zoology 2000;44(2):89-94. | Read article |

[2] Sung IH, Wu YF, Lin MY, Chen SK. Seasonal occurrence, hosts, life history and the biocontrol potential of a mycophagus ladybird Illeis koebelei (Coleoptera: Coccinellidae: Halyziini) in Southern Taiwan. Formosan Entomol. 2010; 30:247-261. | Read article |

[3] Lee YS, Jang MJ, Lee JG, Kim JR, Lee JH. Host plants and biological characteristics of Illeis koebelei Timberlake (Coleoptera: Coccinellidae: Halyziini) in Gyeonggi-do. Korean J Appl Entomol 2015;54(4):295-301. | Read article |