Feltiella acarisuga
biological control. The predatory gall midge Feltiella acarisuga is used for the control of the following pests: Spider mites Some of the common spider mites [...] and adapt the amount of food they consume to the density of the spider mite population. Where there are large, localised concentrations of spider mite [...] almost banana shaped. Larval Stage : The colour of the larva is usually orange but can vary according to the colour of prey eaten and may sometimes be yellow