insect, bug
Radical Radical 虫 means "insect, bug". Kanji with radical 虫: 蚕 (silkworm), 蛮 (barbarian), 虹 (rainbow), 蚊 (mosquito), 蛇 (snake), 蛍 (lightning-bug), 蜂 (bee), 蜜 (honey), 繭 (cocoon)...
虫・漢字(Kanji with 虫)
silkwormbarbarianrainbowmosquitosnakelightning-bugbeehoneycocoon