Sciarid flies
Indirect damage is caused by the larvae and adults transferring fungal diseases, such as Fusarium, Botrytis and Verticillium, from diseased to healthy plants [...] fungi. Because the larvae move very little, plant death is generally local. Young plants that are kept humid and well-watered are particularly at risk. Life [...] fly has a small head equipped with sucking mouth parts, but they hardly feed at all during their short life. The males are usually smaller than the females